描述了新的3-氨基-2-糠基噻吩并[2,3- b ]吡啶(1a,1b,69-80%)的制备方法。随后1a和1b的酸性重排提供了两个新的环状杂环产物5a,5b,吡咯并噻吩并[2,3- b ]吡啶(45-74%)和6,吡啶并噻吩并[2,3- b ]吡咯并嗪(22%) ,取决于反应条件。J.杂环化学。(2010)。
描述了新的3-氨基-2-糠基噻吩并[2,3- b ]吡啶(1a,1b,69-80%)的制备方法。随后1a和1b的酸性重排提供了两个新的环状杂环产物5a,5b,吡咯并噻吩并[2,3- b ]吡啶(45-74%)和6,吡啶并噻吩并[2,3- b ]吡咯并嗪(22%) ,取决于反应条件。J.杂环化学。(2010)。
Phenylfurylthieno[2,3-b]pyridyl-methanes. synthesis and reactions of the furan ring transformation
作者:D. Yu. Kosulina、V. K. Vasilin、T. A. Stroganova、E. A. Sbitneva、A. V. Butin、G. D. Krapivin
DOI:10.1007/s10593-009-0401-9
日期:2009.9
Triarylmethane derivatives with various substituents, phenyl, 5-methyl-2-furyl, and 3-acylaminothieno[2,3-b] pyrid-2-yl have been obtained for the first time. The behavior of these compounds under protolytic conditions has been studied. It was shown that the character of the protection of the amino group of the thienopyridine fragment affects the type of transformation of the furan ring.
Furan ring recyclization in 2-furfurylthieno[2,3-<i>b</i>]pyridines: An intramolecular N-alkylation of pyrrole ring under acid conditions
作者:Darya Yu. Kosulina、Vladimir K. Vasilin、Tatyana A. Stroganova、Tatyana Ya. Kaklyugina、Gennady D. Krapivin
DOI:10.1002/jhet.311
日期:——
The preparation of new 3‐amino‐2‐furfurylthieno[2,3‐b]pyridines (1a, 1b, 69–80%) is described. Subsequent acidic rearrangement of 1a, 1b afforded two new annulated heterocyclic products, 5a, 5b, pyrrolothieno[2,3‐b]pyridines (45–74%), and 6, pyridothieno[2,3‐b]pyrrolizine (22%), depending on reaction conditions. J. Heterocyclic Chem., (2010).
描述了新的3-氨基-2-糠基噻吩并[2,3- b ]吡啶(1a,1b,69-80%)的制备方法。随后1a和1b的酸性重排提供了两个新的环状杂环产物5a,5b,吡咯并噻吩并[2,3- b ]吡啶(45-74%)和6,吡啶并噻吩并[2,3- b ]吡咯并嗪(22%) ,取决于反应条件。J.杂环化学。(2010)。