期刊
TETRAHEDRON
卷 104, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2021.132576
关键词
1,2-Dihydroisoquinoline; [2,1-a] isoquinoline; Huisgen intermediate; [5,1-a] isoquinoline; Ortho-alkynylbenzaldehydes; 1,4-Dipolar intermediates; ortho-alkynylbenzaldoximes; ortho-alkynylaryl aldimines
资金
- Islamic Azad University of Qaemshahr, Iran
The synthesis methods and biological and medicinal activities of 1,2-dihydroisoquinoline, [2,1-a] isoquinoline, and [5,1-a] isoquinoline are reviewed.
The synthesis of 1,2-dihydroisoquinoline, [2,1-a] isoquinoline and [5,1-a] isoquinoline is very important because of their biological and medicinal activities as well as their conversion to corresponding isoquinoline. Various nucleophiles and pronucleophiles could be added to Ortho-alkynylbenzaldehydes, ortho-alkynylaryl aldimines and ortho-alkynylbenzaldoximes in the presence of different Lewis acids and generate derivatives of 1,2-dihydroisoquinoline in tandem route. Also, 1,4-dipolar intermediate which synthesized from the reaction of isoquinoline and electron-deficient compounds reacted with various dipolarophiles for the formation of five- and six-membered heterocycles including [2,1-a] isoquinoline and [5,1-a] isoquinoline. In recent years, these interesting zwitterions have been used in multicomponent reactions to produce a considerable number of heterocyclic compounds. In this review, I have classified a variety of methods since 2006 until now, for the generation of 1,2-dihydroisoquinoline, [2,1-a] isoquinoline and [5,1-a] isoquinoline via the above routes. (C) 2021 Elsevier Ltd. All rights reserved.
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