Synthesis 2020; 52(06): 861-872
DOI: 10.1055/s-0039-1690760
paper
© Georg Thieme Verlag Stuttgart · New York

One-Pot Access to 2-Aryl-3-(arylmethyl)chromones

a   Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
b   Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan   Email: mychang@kmu.edu.tw
,
Kuan-Ting Chen
a   Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
,
Yu-Lin Tsai
a   Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
,
Han-Yu Chen
a   Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
› Author Affiliations

The authors would like to thank the Ministry of Science and Technology, Taiwan for its financial support (MOST 106-2628-M-037-001-MY3).
Further Information

Publication History

Received: 22 October 2019

Accepted after revision: 14 November 2019

Publication Date:
28 November 2019 (online)


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Abstract

Sodium hydroxide controlled intermolecular double aldol condensation of o-hydroxyacetophenones with 2 equivalents of aryl­aldehydes provides 2-aryl-3-(arylmethyl)chromones (a chimera of flavone and homoisoflavanone) in MeOH at 50 °C under mild conditions. The uses of various bases and solvents are investigated for one-pot facile and efficient transformation. A plausible mechanism is proposed.

Supporting Information