Syntheses of Examples of the 5,6-Dihydro-4<i>H</i>-[1,2,3]triazolo[4,5,1-<i>i</i><i>j</i>]quinoline, 4,5,6,7-Tetrahydro[1,2,3]triazolo[4,5,1-<i>jk</i>][1,4]benzodiazepine, and 5,6,7,8-Tetrahydro-4<i>H</i>-[1,2,3]triazolo[4,5,1-<i>kl</i>][1]benzazocine Ring Systems
作者:Alan R. Katritzky、Sergey Bobrov、Kostyantyn Kirichenko、Yu Ji、Peter J. Steel
DOI:10.1021/jo0342018
日期:2003.7.1
affords 14 and 13, representatives of the 5,6-dihydro-4H-[1,2,3]triazolo[4,5,1-ij]quinoline 1 and 5,6,7,8-tetrahydro-4H-[1,2,3]triazolo[4,5,1-kl][1]benzazocine 2 ring systems, respectively. Reactions of dianion 10 with isocyanates give 15a,b, which contain the 4,5,6,7-tetrahydro[1,2,3]triazolo[4,5,1-jk][1,4]benzodiazepine 3 ring system.
1-乙烯基苯并三唑9与正丁基锂(2当量)的锂化反应生成二价阴离子10,该二价阴离子随后与1,2-和1,4-二酮反应生成14和13,代表5,6-二氢-4H- [ 1,2,3]三唑并[4,5,1-ij]喹啉1和5,6,7,8-四氢-4H- [1,2,3]三唑并[4,5,1-kl] [1 ] benzazocine 2环系统。二价阴离子10与异氰酸酯的反应得到15a,b,其包含4,5,6,7-四氢[1,2,3]三唑[4,5,1-jk] [1,4]苯并二氮杂3环系统。