Synthesis and properties of (thieno[2,3-b]pyridin-3-yl) iminotriphenylphosphoranes. Molecular structure of (2-benzoyl-4-methoxymethyl-6- methylthieno[2,3-b]pyridin-3-yl)iminotriphenylphosphorane

被引：0
|
作者：
Kaigorodova E.A. [1 ]
Vasilin V.K. [1 ]
Lipunov M.M. [1 ]
Zavodnik V.E. [1 ]
Krapivin G.D. [1 ]
机构：
[1] Kuban State Technological University
来源：
Chemistry of Heterocyclic Compounds | 2004年 / 40卷 / 12期
关键词：
(thieno[2,3-b]pyridin-3-yl)- iminotriphenylphosphoranes; 3-aminothieno[2,3-b]pyridines; 3-azidothieno[2,3-b]pyridines; 3-cyano-2(1H)-pyridinethiones; Molecular structure; Synthesis;
D O I：
10.1007/s10593-005-0104-9
中图分类号：
学科分类号：
摘要：
Iminophosphoranes containing a thieno[2,3-b]pyridine fragment were obtained through a sequence of reactions: 1) alkylation of 3-cyano-2(1H)-pyridinethiones in alkaline medium by an α-halocarbonyl compound with subsequent Thorpe-Ziegler cyclization of the resultant 2-thioalkylpyridines to give 3-aminothieno[2,3-b]pyridines, 2) diazotization of the amino group and nucleophilic substitution of the diazonium group by an azido group without isolation of the diazonium salts, and 3) reaction of the 3-azidothieno[2,3-b] pyridines with triphenylphosphine. ©2004 Springer Science+Business Media, Inc.
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页码：1600 / 1608
页数：8
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