Preparation of 1-trifluoroacetyl indolizines and their derivatives via the cycloaddition of pyridinium N-ylides with 4-4-ethoxy1-1,1,1-trifluorobut-3-en-one
作者:Shi-zheng Zhu、Chao-yue Qin、Yan-Li Wang、Qian-li Chu
DOI:10.1016/s0022-1139(99)00145-1
日期:1999.11
Under basic reaction conditions pyridinium or isoquinolinium N-ylides (C5H5N+ CH2YBr− or C9H7N+CH2YBr−, Y : CO2R, CN, PhCO) reacted readily with 4-ethoxyl-1,1,1-trifluorobut-3-en-2-one to give the corresponding 1-trifluoroacetyl substituted indolizines or pyrrolo-[1,2-a]isoquinolines. The molecular structure of 1-trifluoromethyl-3-methoxyl-pyrrolo-[1,2-a]isoquinoline is presented.
在碱性反应条件下或吡啶鎓异喹啉的N-叶立德(C 5 H ^ 5 Ñ + CH 2 YBR -或C 9 H ^ 7 Ñ + CH 2 YBR -,Y:CO 2 R,CN,PhCO)与容易反应的4- ethoxyl- 1,1,1-三氟丁-3-烯-2-酮,得到相应的1-三氟乙酰基取代的吲哚嗪或吡咯并-[1,2-a]异喹啉。介绍了1-三氟甲基-3-甲氧基-吡咯并-[1,2-a]异喹啉的分子结构。