Synthesis 2013; 45(10): 1333-1340
DOI: 10.1055/s-0033-1338298
paper
© Georg Thieme Verlag Stuttgart · New York

Studies on Pyrrolidinones: Chemistry of Dimethoxytriazines

Liliana Lucescu
a   Department of Organic Chemistry, ‘Al. I. Cuza’ University of Iasi, Faculty of Chemistry, Bd. Carol I nr. 11, 700506 Iasi, Romania
,
Philippe Gautret
b   Université Lille Nord de France, 59000 Lille, France
c   UCLille, EA 4481 (GRIIOT), Laboratoire de Pharmacochimie, HEI, 13 rue de Toul, 59046 Lille, France   Fax: +33(328)384804   eMail: alina.ghinet@hei.fr
,
Souhila Oudir
b   Université Lille Nord de France, 59000 Lille, France
c   UCLille, EA 4481 (GRIIOT), Laboratoire de Pharmacochimie, HEI, 13 rue de Toul, 59046 Lille, France   Fax: +33(328)384804   eMail: alina.ghinet@hei.fr
,
Benoît Rigo
b   Université Lille Nord de France, 59000 Lille, France
c   UCLille, EA 4481 (GRIIOT), Laboratoire de Pharmacochimie, HEI, 13 rue de Toul, 59046 Lille, France   Fax: +33(328)384804   eMail: alina.ghinet@hei.fr
,
Dalila Belei
a   Department of Organic Chemistry, ‘Al. I. Cuza’ University of Iasi, Faculty of Chemistry, Bd. Carol I nr. 11, 700506 Iasi, Romania
,
Elena Bîcu
a   Department of Organic Chemistry, ‘Al. I. Cuza’ University of Iasi, Faculty of Chemistry, Bd. Carol I nr. 11, 700506 Iasi, Romania
,
Alina Ghinet*
a   Department of Organic Chemistry, ‘Al. I. Cuza’ University of Iasi, Faculty of Chemistry, Bd. Carol I nr. 11, 700506 Iasi, Romania
b   Université Lille Nord de France, 59000 Lille, France
c   UCLille, EA 4481 (GRIIOT), Laboratoire de Pharmacochimie, HEI, 13 rue de Toul, 59046 Lille, France   Fax: +33(328)384804   eMail: alina.ghinet@hei.fr
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Publikationsverlauf

Received: 30. Januar 2013

Accepted after revision: 11. März 2013

Publikationsdatum:
28. März 2013 (online)


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Abstract

The synthesis of dimethoxytriazine-containing N-aryl substituted pyrrolidinones is realized for the first time. Three new modes of reactivity for these substrates possessing a 4,6-dimethoxy-1,3,5-triazine unit are discussed. Their treatment with acid leads to complete O-demethylation of the methoxy groups, while similar reaction in a basic medium leads to partial O-demethylation. In contrast, heating in the presence of dimethyl sulfate as the catalyst induces migration of the methyl groups from the oxygen atoms to the triazine nitrogens (Hilbert–Johnson transposition). These new scaffolds may demonstrate biological potential.