Synthesis of N,N′-Linked Bisazaheterocycles

Ghanta Mahesh  Reddy; Anagani Kanaka Durga  Bhavani; Padi Pratap  Reddy; Padala Satyanarayana N.  Reddy

doi:10.1055/s-2002-33114

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Synthesis 2002(10): 1311-1343
DOI: 10.1055/s-2002-33114

REVIEW

Synthesis of N,N′-Linked Bisazaheterocycles

Ghanta Mahesh Reddy, Anagani Kanaka Durga Bhavani, Padi Pratap Reddy, Padala Satyanarayana N. Reddy*
Department of Chemistry, Osmania University, Hyderabad-500 007, India
Fax: +91(40)7682337; e-Mail: psnreddyou@yahoo.com;

Further Information

Publication History

Received 7 January 2002
Publication Date:
01 August 2002 (online)

Abstract
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Abstract

Bisazaheterocycles are excellent precursors of N-centered free radicals with immense pharmacological importance. The synthesis of various N,N′-linked bisazaheterocycles and their importance is reviewed for the first time.

1 Introduction

2 Symmetrical Bisazaheterocycles

2.1 Bisaziranes

2.2 Bisazetanes

2.3 Bisazoles

2.4 Bisazines

2.5 Bisazepines

3 Unsymmetrical Bisazaheterocycles

3.1 Aziranylazoles

3.2 Aziranylazines

3.3 Azetanylazoles

3.4 Azetanylazines

3.5 Azolylazoles

3.6 Azolylazines

3.7 Azolylazepines

3.8 Azinylazines

3.9 Azinylazepines

4 Conclusion

Key words

bisazaheterocycles - nitrogen free radicals - bioactive molecules - condensation - insertion

References

1 Mounir AK. Mahmound ED. Alexandria J. Pharm. Sci. 1989, 3: 190

Google Scholar
2 Richard CE, Larry D, and Gordon EO. inventors; Eur. Pat. Appl. 409 400.
3a Komatsu M. Yamamoto S. Ohshiro Y. Agawa T. Heterocycles 1985, 23: 677

Crossref Google Scholar
3b Alcaide B. Miranda M. Perez-Castells J. Polanco C. Sierra MA. J. Org. Chem. 1994, 59: 8003

Crossref Google Scholar
4 Hoda AA. Sayed AS. Momen AEIK. Ahmed SAY. Phosporous, Sulfur Silicon Relat. Elem. 1992, 72: 237

Google Scholar
5 Srivastava VK. Singh KS. Sharma K. Singh SN. Fatima N. Chaterjee RK. Indian J. Chem., Sect. B 1991, 30: 859

Google Scholar
6 Angerbauer R, Huebsch W, Fey P, Bischoff H, Petzinna D, Schmidt D, and Thomas G. inventors; Eur. Pat. App. 339 342. ; Chem. Abstr. 1990, 113, 115074w
7 Srivastava VK. Singh KS. Gulati A. Shanker K. Indian J. Chem., Sect. B 1987, 26: 652

Google Scholar
8a Wang JH. Science 1970, 25: 167

Google Scholar
8b Wang JH. Acc. Chem. Res. 1970, 3: 90

Google Scholar
8c Tu S. Wang JH. Biochemistry 1970, 9: 21505

Google Scholar
9 Hoesch L. Eggers N. Dreiding AS. Helv. Chim. Acta 1978, 61: 795

Crossref Google Scholar
10a Kriste K. Luettke N. Rademacher P. Angew. Chem., Int. Ed. Engl. 1978, 90: 726

Crossref Google Scholar
10b Ogawa K. Nomura Y. Takeuchi Y. Tomoda S. J. Chem. Soc., Perkin Trans. 1 1982, 3031

Crossref Google Scholar
11a Barlow MG. Suliman NNE. Tipping AE. J. Chem. Soc., Chem. Commun. 1993, 9

Google Scholar
11b Barlow MG. Suliman NNE. Tipping AE. J. Fluorine Chem. 1995, 72: 147

Google Scholar
12 Fuchigami T. Sato T. Nonaka T. J. Org. Chem. 1986, 51: 366

Crossref Google Scholar
13 Stetter H. Spangenberger H. Chem. Ber. 1958, 91: 1982

Google Scholar
14a Hedaya E. Hinman RL. Theodoropulos S. J. Org. Chem. 1963, 85: 3052

Google Scholar
14b Hedaya E. Hinman RL. Schomaker V. Theodoropulos S. Kyle LM. J. Am. Chem. Soc. 1967, 89: 4875

Google Scholar
14c Feure H. Wyman H. Chem. Ind. (London) 1956, 577

Google Scholar
15 Avetisyan SA. Nesunts NS. Buyukyan NS. Mndzhoyan OL. Dzhagatspanyan IA. Pharm. Chem. J. 1988, 22: 309

Crossref Google Scholar
16a Feure H. Rubinstein H. J. Am. Chem. Soc. 1958, 80: 548

Crossref Google Scholar
16b Feure H. Rubinstein H. J. Am. Chem. Soc. 1958, 80: 5873

Crossref Google Scholar
17 Kuhn N. Kotowski H. Steimann M. Speiser B. Wurde M. Henkel G. J. Chem. Soc., Perkin Trans. 2 2000, 353

Crossref Google Scholar
18a Flitsch W. Luettig FJ. Liebigs. Ann. Chem. 1987, 893

Crossref Google Scholar
18b Flitsch VW. Kramer U. Zimmermann H. Ber. Dtsch. Chem. Ges. 1969, 102: 3268

Crossref Google Scholar
18c Chang C. Adams R. J. Am. Chem. Soc. 1931, 53: 2353

Crossref Google Scholar
19a Korschun G. Ber. Dtsch. Chem. Ges. 1904, 37: 2183

Google Scholar
19b Bulow C. Sautermeister C. Ber. Dtsch. Chem. Ges. 1904, 37: 2697

Google Scholar
20 Schilffarth K. Zimmermann H. Chem. Ber. 1965, 98: 3124

Google Scholar
21 Flitsch VW. Lerner H. Tetrahedron Lett. 1974, 15: 1677

Crossref Google Scholar
22 Aly NF. Essawy AS. Tamany SHEI. Egypt. J. Chem. 1987, 30: 267

Google Scholar
23 Leuenberger C. Hoesch L. Dreiding AS. Helv. Chim. Acta 1981, 64: 1219

Crossref Google Scholar
24 Hoesch L. Koppel B. Helv. Chim. Acta 1981, 64: 864

Crossref Google Scholar
25 Schulz M. Kluge R. Willscher S. Liebigs. Ann. Chem. 1987, 671

Google Scholar
26 Hatt D. J. Chem. Soc. 1937, 16: 26

Google Scholar
27 Lisitsyn VN. Borovkov AG. J. Org. Chem. USSR 1983, 2270

Google Scholar
28a Garwood D. J. Chem. Soc. 1937, 1841

Google Scholar
28b Le Berre . C. R. Acad. Sci. 1958, 246: 781

Google Scholar
29 Pearman D. J. Chem. Soc. 1937, 26: 32

Google Scholar
30 Erelyne B, and Rernard G. inventors; Eur. Pat. Appl. 292 362.
31 Joshi BS. David J. Gawad DH. Indian J. Chem., Sect. B 1983, 22: 131

Google Scholar
32 Tarozaemon N. Noritaka A. Kenzo M. Heterocycles 1980, 14: 783

Google Scholar
33 Benati L. Montevecchi PC. J. Org. Chem. 1981, 46: 4570

Crossref Google Scholar
34a Terabe S. Konaka R. J. Am. Chem. Soc. 1969, 91: 5655

Google Scholar
34b Zhereblsov IP. Lupantinskii VP. Izv. Tomsk. Politkh. Inst. 1974, 70: 198

Google Scholar
34c Zelent B. Durocher G. J. Org. Chem. 1981, 46: 1496

Google Scholar
34d Zelent B. Durocher G. Can. J. Chem. 1982, 60: 2442

Google Scholar
35 Crumrine DS. Brodbeck CM. Dombrowski PH. Haberkamp TJ. Kekstas RJ. Nabor P. Nomura GS. Padleckas HA. Suther DJ. Yonan JP. J. Org. Chem. 1982, 47: 4246

Google Scholar
36 Gioanola M. Leardini R. Nanni D. Pareschi P. Zanardi G. Tetrahedron 1995, 51: 2039

Crossref Google Scholar
37a Erra Balsells R. Frasca AR. Tetrahedron Lett. 1984, 25: 5363

Google Scholar
37b Muzik A. Collect. Czech. Chem. Commun. 1957, 22: 64

Google Scholar
38 Rodriguez JG. Urrutia A. Tetrahedron 1998, 54: 15613

Crossref Google Scholar
39 Erra Balsells R. Frasca AR. Tetrahedron 1983, 39: 33

Crossref Google Scholar
40 Khrem AA. Krasyuk EI. Mikhaiopulo IA. Geterotsikl. Soedin. 1976, 1239

Google Scholar
41 Balasubrahmanyam SN. Radhakrishna AS. Boulton AJ. Kan-Woon T. J. Org. Chem. 1977, 42: 897

Google Scholar
42 Cuevas JC. de Mendoza J. Prados P. J. Org. Chem. 1988, 53: 2055

Google Scholar
43 Briody JM. Pearse M. Chem. Ind. (London) 1971, 657

Google Scholar
44 Zimmermann H. Baumgartel H. Bakke F. Angew. Chem. 1961, 73: 808

Google Scholar
45 de Mendoza J. Millan C. Rull P. J. Chem. Soc., Perkin Trans. 1 1981, 403

Crossref Google Scholar
46 Turkevich NM. Boikov DP. Dopov. Akad. Nauk. Ukr. 1971, 33: 1016 ; Chem. Abstr. 1972, 76, 153713d.

Google Scholar
47a Carboni RA. inventors; U S. Patent 3 184 472.

Crossref
47b Harder RJ. Carboni RA. Castle JE. J. Am. Chem. Soc. 1967, 89: 2643

Crossref Google Scholar
48 Carlsen PHJ. Iversen EH. Samuelsen EJ. Helgesson G. Jagner S. Acta Chem. Scand. 1992, 46: 200 ; Chem. Abstr. 1992 , 116, 174080e

Google Scholar
49a Rink M. Lux R. Arch. Pharmacol. 1961, 294: 640

Google Scholar
49b Jackisch J. Legler J. Kauffmann T. Chem. Ber. 1982, 115: 659

Google Scholar
49c Troyanskii EI. Ioffe VA. Nikishin GI. Bull. Acad. Sci USSR. 1985, 34: 2351

Google Scholar
50 Toda T. Mori E. Horiuchi H. Murayama K. Bull. Chem. Soc. Jpn. 1972, 45: 1802

Google Scholar
51a Simmons TC. Hoffmann FW. Beck RB. Holler HV. Katz T. Koshar RJ. Larsen ER. Mulvaney JE. Paulson KE. Rogers FE. Singleton B. Sparks RE. J. Am. Chem. Soc. 1957, 79: 3429

Google Scholar
51b Allan RB. Donald EB. J. Fluorine Chem. 1983, 23: 87

Google Scholar
51c Sartori P. Velayutham D. Ignat’ev N. Noel M. J. Fluorine Chem. 1998, 87: 31

Google Scholar
52 Ogawa K. Takeuchi Y. Suzuki H. Nomura Y. J. Am. Chem. Soc. 1984, 106: 831

Crossref Google Scholar
53 Dinnocenzo JP. Banach TE. J. Am. Chem. Soc. 1988, 110: 971

Crossref Google Scholar
54a Ochiai M. Inenaga M. Nagao Y. Moriarty RM. Vaid RK. Duncan MP. Tetrahedron Lett. 1988, 29: 6917

Google Scholar
54b Venkov AP. Stakova-Abeghe SM. Tetrahedron 1996, 52: 1451

Google Scholar
54c Wieland H. Haas E. Chem. Ber. 1920, 53: 1341

Google Scholar
54d Nomura Y. Nippon Ishikai Zasshi 1956, 77: 1109 ; Chem. Abstr. 1959, 5264

Google Scholar
55a Nekipelova TD. Malkin YaN. Kuz’min VA. Bull. Acad. Sci. USSR. 1989, 38: 413

Google Scholar
55b Shikaliev KhS. Shapiro AB. Shmyreva ZhV. Bull. Acad. Sci. USSR. 1980, 29: 67

Google Scholar
56 Rees CW. Yelland M. J. Chem. Soc., Perkin Trans. 1 1972, 77

Crossref Google Scholar
57a Bird P. Sainsbury M. Scopes DIC. Can. J. Chem. 1983, 61: 1071

Google Scholar
57b Rosen G. Popp FD. Can. J. Chem. 1969, 47: 864

Google Scholar
58 Kuppuswamy N. Vunnam RR. Rashmi KS. Sharada JS. Hans F. Helv. Chim. Acta 1988, 71: 77

Crossref Google Scholar
59 Korbonits D. Harsanyi K. Chem. Ber. 1966, 99: 273

Google Scholar
60a Graebe . Lagodzinski . Justus Liebigs Ann. Chem. 1893, 276: 53

Google Scholar
60b Graebe . Locher . Justus Liebigs Ann. Chem. 1894, 279: 280

Google Scholar
61a Ostrogovich . Mihailescu . Gazz. Chim. Ital. 1911, 41(II): 792

Google Scholar
61b Ostrogovich . Bena Median . Bull. Sect. Sci. Acad. Roum. 1942, 25: 90

Google Scholar
61c Ostrogovich . Bean Median . Bull. Sect. Sci. Acad. Roum. 1942, 25: 150

Google Scholar
62a Langhals H. Jona W. Angew. Chem. Int. Ed. 1998, 37: 952

Crossref Google Scholar
62b Rodriguz-Llorente S. Aroca R. Duff J. J. Mater. Chem. 1998, 8: 2175

Crossref Google Scholar
63 Zoorob HH. Khodeir MNM. Waly MA. Amer AF. Indian J. Chem., Sect. B 1990, 29: 29

Google Scholar
64 Bregant N. Perina I. Balenovic K. Bull. Sci. Cons. Acad. Sci. Arts. RSF. Yougoslaviesec. A. 1972, 17: 148

Google Scholar
65 Barluenga J. Muniz L. Iglesias MJ. Gotor V. Synthesis 1985, 1146

Article in Thieme Connect Google Scholar
66 Guenter J. Voigt H. Hofmann F. Feuerstein B. Z. Chem. 1984, 24: 437

Google Scholar
67a Pflegel P. Wagner G. Pharmazie 1967, 22: 60 ; Chem. Abstr. 1967, 67, 7499

Google Scholar
67b Pflegel P. Kuchenstedt C. Richter P. Gerisch K. Pharmazie 1982, 37: 714 ; Chem. Abstr. 1983, 98, 126047n.

Google Scholar
68 Peet NP. Sunder S. J. Org. Chem. 1975, 40: 1909

Google Scholar
69 Bhavani AKD. Reddy PSN. Indian J. Chem., Sect. B 1992, 31: 736

Google Scholar
70a Hoechst AG . inventors; British Patent 1429339. ; Chem. Abstr. 1976, 85, p63095k
70b Hans K, Desouza NJ, Patel J, and Desai PD. inventors; Ger. Offen. 2232532. ; Chem. Abstr. 1974, 80, p121007t
70c Nagahara K. Takada A. Chem. Pharm. Bull. 1977, 25: 2713

Google Scholar
70d Mohamed YA. Aziziamohesen AE. Salama FM. Akfity AN. J. Serb. Chem. Soc. 1992, 57: 629

Google Scholar
70e Ried VW. Peters B. Liebigs. Ann. Chem. 1969, 729: 124

Google Scholar
71 Reddy PSN. Bhavani AKD. Indian J. Chem., Sect. B 1992, 31: 740

Google Scholar
72 Bhavani AKD. Reddy PSN. Org. Prep. Proced. Int. 1992, 24: 1

Google Scholar
73 Gakhav HK. Sharma A. Gupta SB. Indian J. Chem., Sect. B 1982, 21: 456

Google Scholar
74 Hoechst A.-G. inventors; British Patent 1429339. ; Chem. Abstr. 1976, 85, p63095
75a Troyanskii EI. Ioffe VA. Nikishin GI. Bull. Acad. Sci. USSR. 1985, 34: 2351

Crossref Google Scholar
75b Nelsen SF. Rumack DT. Meot-Ner M. J. Am. Chem. Soc. 1987, 109: 1373

Crossref Google Scholar
76 Mayer KK. Schroppel F. Sauer J. Tetrahedron Lett. 1972, 13: 2899

Crossref Google Scholar
77a Ansari HM. Ahmand F. Ahmand M. J. Am. Oil Chem. Soc. 1986, 63: 92

Crossref Google Scholar
77b Kuznetsov MA. Belov VN. Yu AV. Fiz. Khim. Obrab. Mater. 1984, 63

Crossref Google Scholar
77c Mohammad AS. Fasih A. Sheikh MO. J. Chem. Res., Synop. 1984, 26

Crossref Google Scholar
77d Leone CL. Chamberlin AR. Tetrahedron Lett. 1991, 32: 1691

Crossref Google Scholar
77e Atkinson RS. Barker E. J. Chem. Soc., Chem. Commun. 1995, 1074819

Crossref Google Scholar
77f Atkinson RS. Grimshire MJ. Kelly BJ. Tetrahedron 1989, 45: 2875

Crossref Google Scholar
77g Atkinson RS. Jones DW. Kelly BJ. J. Chem. Soc., Perkin Trans. 1 1991, 1344

Crossref Google Scholar
77h Deshmukh MB. Mulik AR. Chavan PB. J. Indian. Chem. Soc. 1999, 76: 459

Crossref Google Scholar
77i Kapron JT. Santarsiero BD. Vederas JC. J. Chem. Soc., Chem. Commun. 1993, 1074

Crossref Google Scholar
77j Dickinson JM. Murphy J. A. Tetrahedron 1992, 48: 1317

Crossref Google Scholar
77k Hoesch L. Helv. Chim. Acta 1981, 64: 890

Crossref Google Scholar
77l Nelsen SF. Blackstock SC. Steffek DJ. Cunkle GT. Kurtzweil ML. J. Am. Chem. Soc. 1988, 110: 6149

Crossref Google Scholar
77m Marples BA. Toon RC. Tetrahedron Lett. 1999, 40: 4873

Crossref Google Scholar
77n Narasimhan K. Rajakumar P. Heterocycles 1984, 22: 1369

Crossref Google Scholar
77o Rajakumar P. Heterocycles 1987, 26: 1257

Crossref Google Scholar
77p Rajakumar P. Indian J. Chem., Sect. B 1987, 26: 725

Crossref Google Scholar
77q Kuwashima S. Kubota M. Kushida K. Ishida T. Ohashi M. Nogami T. Tetrahedron Lett. 1994, 35: 4371

Crossref Google Scholar
77r Belov VN. Denisov VR. Kuzentsov MA. Chem. Heterocycl. Compd. 1988, 24: 868

Crossref Google Scholar
77s Jones DW. J. Chem. Soc., Chem. Commun. 1972, 884

Crossref Google Scholar
77t Carpino LA. Padykula RE. Lee SN. Han GY. Kirkley RK. J. Org. Chem. 1988, 53: 6047

Crossref Google Scholar
77u Jones DW. Thornton-Pet M. J. Chem. Soc., Perkin Trans. 1 1995, 809

Crossref Google Scholar
78 Ruttimann A. Ginsburg D. Tetrahedron 1976, 32: 1009

Crossref Google Scholar
79a Anderson AG. Fagerburg DR. J. Heterocycl. Chem. 1969, 6: 987

Google Scholar
79b Jones DW. J. Chem. Soc., Perkin Trans. 1 1972, 225

Google Scholar
79c Narashimha K. Kumar PR. Indian J. Chem., Sect. B 1985, 24: 141

Google Scholar
79d Hoesch L. Dreiding AS. Chimia 1969, 23: 405

Google Scholar
80 Atkison RS. Fawcett J. Russell DR. Tughan G. J. Chem. Soc., Chem. Commun. 1986, 832

Crossref Google Scholar
81a Charles LR. Yelland M. J. Chem. Soc. D 1969, 377

Crossref Google Scholar
81b Rees CW. Yelland M. J. Chem. Soc. Perkin Trans. 1 1972, 77

Crossref Google Scholar
82a Atkinson RS. Tugahn G. J. Chem. Soc., Chem. Commun. 1986, 834

Crossref Google Scholar
82b Koohang A. Stanchina CL. Coates RM. Tetrahedron 1999, 55: 9669

Crossref Google Scholar
82c Zhalnina GV. Kunzefsov MA. Semenovskii VV. Shustone GV. Fiz. Khim. Obrab. Mater. 1990, 72: 45

Crossref Google Scholar
82d Amad MB. Rauf A. Osman SM. Indian J. Chem., Sect. B 1988, 27: 1140

Crossref Google Scholar
82e Hogale B. Madhukar C. Pravin B. Collect. Czech. Chem. Commun. 1993, 58: 1705

Crossref Google Scholar
83a Albar HA. Fawcett J. Russell DR. Heterocycles 1997, 45: 1289

Google Scholar
83b Atkinson RS. Barker E. Meades CK. Albar HA. J. Chem. Soc., Chem. Commun. 1998, 29

Google Scholar
84 Testa E. Fontanella . Farmaco, Ed. Sci. 1971, 26: 1017

Google Scholar
85 Ebnoether A. Jucker E. Rissi E. Rutschmann J. Schreier E. Steiner R. Suess R. Vogel A. Helv. Chim. Acta 1959, 42: 918

Crossref Google Scholar
86 Iwagami H. Yasuda N. Heterocycles 1990, 31: 529

Google Scholar
87a Bhalla M. Srivastava VK. Bhalla TN. Shanker K. Arzeim.-Forsch. 1993, 43: 595

Google Scholar
87b Al-Thebeiti MS. El-Zohry MF. Indian J. Chem., Sect. B 1998, 37 : 804

Google Scholar
88a Breuil-Desvergnes V. Compain P. Vatele J.-M. Gore J. Tetrahedron Lett. 1999, 40: 5009

Crossref Google Scholar
88b Enders D. Diez E. Fernandez R. Martin-Zamora E. Munoz JM. Pappalardo RR. Lassaletta JM. J. Org. Chem. 1999, 64: 6329

Crossref Google Scholar
89 Katritzky AR. Suwinski JW. Tetrahedron 1975, 31: 1549

Crossref Google Scholar
90 Adembri G. Camparini A. Ponticelli F. Tedeschi P. J. Heterocycl. Chem. 1981, 18: 957

Google Scholar
91 Enders D. Wiedemann J. Liebigs Ann. Recl. 1997, 699

Google Scholar
92a Enders D. Teschner P. Raabe G. Synlett 2000, 637

Crossref Google Scholar
92b Enders D. Teschner P. Raabe G. Heterocycles 2000, 52: 733

Crossref Google Scholar
93 Menendez JC. Trigo GG. Sollhuber MM. Heterocycles 1986, 24: 1393

Google Scholar
94 Grigg R. Dorrity MJR. Malone JF. Mongkolaussavaratana T. Amilaprasadh-orbert WDJA. Sridharan V. Tetrahedron Lett. 1990, 31: 3075

Crossref Google Scholar
95 Hanefeld W. Schlitzer M. Debski N. Euler H. J. Heterocycl. Chem. 1996, 33: 1143

Google Scholar
96 Hanefeld W. Schlitzer M. J. Heterocycl. Chem. 1994, 31: 391

Crossref Google Scholar
97 Olofson RA. Pepe JP. Tetrahedron Lett. 1979, 3129

Crossref Google Scholar
98 Khan MH. Tewari S. Begum K. Nizammuddin . Indian J. Chem., Sect. B 1998, 37: 1075

Google Scholar
99 Enders D. Meyer I. Runsink J. Raabe G. Heterocycles 1999, 50: 995

Google Scholar
100a Parrick J. Ragunathan R. J. Chem. Soc., Perkin Trans. 1 1993, 211

Google Scholar
100b Garwood D. J. Chem. Soc. 1937, 841

Google Scholar
101 Augustin M. Reinemann P. Z. Chem. 1973, 13: 61

Google Scholar
102 Flitsch W. Luettig FJ. Liebigs Ann. Chem. 1987, 893

Google Scholar
103 Somogyi L. Liebigs Ann. Chem. 1985, 8: 1679

Google Scholar
104 Dickinson JM. Murphy JA. Tetrahedron 1992, 48: 1317

Crossref Google Scholar
105 Jones DW. J. Chem. Soc., Chem. Commun. 1978, 404

Crossref Google Scholar
106 Walesa KG. Acta. Pol. Pharma 1995, 52: 501

Google Scholar
107 Gilchrist TL. Gymer GE. Rees CW. J. Chem. Soc., Perkin Trans. 1 1975, 1747

Crossref Google Scholar
108 Harder RJ. inventors; U.S. Patent 3184471. ; Chem. Abstr. 1965, 63, 43059
109 Dokunikhin NS. Bystritskii GI. Zh. Obshch. Khim. 1963, 33: 2714

Google Scholar
110 Rink M. Lux R. Naturwissenschaften 1958, 45: 516

Google Scholar
111 Enders D. Wiedemann J. Liebigs Ann., Recl. 1997, 699

Google Scholar
112 Enders D. Brauer-Scheib S. Fey P. Synthesis 1985, 393

Article in Thieme Connect Google Scholar
113 Enders D. Bartzen D. Liebigs Ann. Recl. 1997, 1115

Google Scholar
114 Beaudegnies R. Ghosez L. Tetrahedron: Asymmetry 1994, 5: 557

Crossref Google Scholar
115a Suzuki H. Aoyagi S. Kibayashi C. Tetrahedron Lett. 1995, 36: 935

Crossref Google Scholar
115b Suzuki H. Aoyagi S. Kibayashi C. J. Org. Chem. 1995, 60: 6114

Crossref Google Scholar
115c Hanefeld W. Schlitzer M. Debski N. Euler H. J. Heterocycl. Chem. 1996, 33: 1143

Crossref Google Scholar
115d Scott KR. Kennedy PG. Murray K. Telang VG. Mathews HW. J. Pharm. Sci. 1983, 72: 183

Crossref Google Scholar
115e Kornet MJ. J. Pharm. Sci. 1984, 73: 405

Crossref Google Scholar
115f Brana MF. Sanz AM. Castellano JM. Roldan CM. Roldan C. Eur. J. Med. Chem. 1981, 16: 207

Crossref Google Scholar
115g Ostrogovich M. Gazz. Chim. Ital. 1911, 41: 790

Crossref Google Scholar
115h Flitsch W. Lauterwein J. Temme R. Wibbeling B. Tetrahedron Lett. 1988, 29: 3391

Crossref Google Scholar
115i Afridi AS. Katritzky AR. Ramsden CA. J. Chem. Soc., Perkin Trans. 1 1977, 1428

Crossref Google Scholar
115j Langhals H. Ismael R. Yuruk O. Tetrahedron 2000, 56: 5435

Crossref Google Scholar
115k Lukas AS. Miller SE. Wasielewski MR. J. Phys. Chem. B 2000, 104: 931

Crossref Google Scholar
115l Wiederrech GP. Niemozyk MP. Svec WA. Wasielewski MR. J. Am. Chem. Soc. 1996, 118: 81

Crossref Google Scholar
116 Andersen K. Perregaard J. Arnt J. Nielsen JB. Begtrup M. J. Med. Chem. 1992, 35: 4823

Crossref Google Scholar
117 Takahashi K. Tachiki A. Ogura K. Iida H. Heterocycles 1986, 24: 2835

Google Scholar
118a Yamazaki N. Suzuki H. Aoyagi S. Kibayashi C. Tetrahedron Lett. 1996, 37: 6161

Crossref Google Scholar
118b Yamazaki N. Kibayashi C. Tetrahedron Lett. 1997, 38: 4623

Crossref Google Scholar
119 Teleha CA. Greenberg RA. Chorvat RJ. J. Heterocycl. Chem. 1998, 35: 145

Crossref Google Scholar
120 Reddy GM. Reddy PSN. Indian J. Chem., Sect. B 1997, 36: 166

Google Scholar
121a Zeinab HA. Ahmed M. Hamed AEI. Maher FEZ. Collect. Czech. Chem. Commun 1993, 58: 1944

Google Scholar
121b Agarwal R. Charanjeet S. Mishra VS. Indian Drugs 1988, 25: 185

Google Scholar
121c Purohit DM. Shah VH. Indian J. Heterocycl. Chem. 1999, 8: 213

Google Scholar
121d Feky EI. Said H. Pharmazie 1993, 48: 894

Google Scholar
122 Tyagi R. Goel B. Srivastava VK. Kumar A. Indian J. Pharm. Sci. 1998, 60: 283

Google Scholar
123 Bhalla M. Srivastava VK. Bhalla TN. Shanker K. Arzeim.-Forsch. 1993, 43: 595

Google Scholar
124 Krzysztof C. Zislaw JZ. Rolland S. Pol. J. Chem. 1983, 57: 817

Google Scholar
125 Narasimhan K. Kumar PR. J. Org. Chem. 1983, 48: 1122

Google Scholar
126 Snyder NJ. Paschal JW. Elzey TK. Spry DO. Heterocycles 1991, 32: 2193

Google Scholar
127 Egg H. Ganzera I. Leibetseder H. Patzak A. Sperl U. Arch. Pharm. 1986, 319: 682

Google Scholar
128 Enders D. Wiedemann J. Liebigs Ann. Recl. 1997, 699

Google Scholar
129 Goldschmidt V. Justus Liebigs Ann. Chem. 1924, 435: 276

Google Scholar
130 Reddy GM. Reddy PSN. Indian J. Chem., Sect. B 1998, 37: 689

Google Scholar
131 Reddy GM. Thesis PhD. Osmania University: Hyderabad India 1998,

Google Scholar
132 Kumar SA. Singh S. Saxena AK. Shanker K. Indian J. Chem., Sect. B 1988, 27: 443

Google Scholar
133 Hoechst Pharm Ltd. . inventors; India 137449. ; Chem. Abstr. 1980, 92, 146810k
134 Moneer AA. Mohsen IM. Osman AN. Egypt. J. Pharm. Sci. 1993, 34: 599

Google Scholar
135 Harvey ML. inventors; U.S. Patent 3466285. ; Chem. Abstr. 1969, 71, 101877n