A novel conversion of acetylenic 1,2,4-triazoles into 3-alkyl-5-arylpyridazines
摘要:
Bromination of 2-aryl-1-[1,2,4]triazol-1-ylalk-3-yn-2-ols gives 6-bromo-7-hydroxy-5-alkyl-7-aryl-7,8-dihydro-[1,2,4]triazolo[1,2-a]pyridazin-4-ylium salts, which are converted by treatment with strong alkali into novel 3-alkyl-5-arylpyridazines. (c) 2006 Elsevier Ltd. All rights reserved.
A novel conversion of acetylenic 1,2,4-triazoles into 3-alkyl-5-arylpyridazines
摘要:
Bromination of 2-aryl-1-[1,2,4]triazol-1-ylalk-3-yn-2-ols gives 6-bromo-7-hydroxy-5-alkyl-7-aryl-7,8-dihydro-[1,2,4]triazolo[1,2-a]pyridazin-4-ylium salts, which are converted by treatment with strong alkali into novel 3-alkyl-5-arylpyridazines. (c) 2006 Elsevier Ltd. All rights reserved.
A novel conversion of acetylenic 1,2,4-triazoles into 3-alkyl-5-arylpyridazines
作者:Patrick J. Crowley、Sally E. Russell、Laurence G. Reynolds
DOI:10.1016/j.tet.2006.07.015
日期:2006.9
Bromination of 2-aryl-1-[1,2,4]triazol-1-ylalk-3-yn-2-ols gives 6-bromo-7-hydroxy-5-alkyl-7-aryl-7,8-dihydro-[1,2,4]triazolo[1,2-a]pyridazin-4-ylium salts, which are converted by treatment with strong alkali into novel 3-alkyl-5-arylpyridazines. (c) 2006 Elsevier Ltd. All rights reserved.