Synthesis and reaction of β,β-di(trifluoroacetyl) ethylene derivatives, (CF3CO)2CCR1R2
作者:ShiZheng Zhu、Bin Xu、Jie Zhang
DOI:10.1016/0022-1139(95)03296-p
日期:1995.10
Reaction of 1,1,1,5,5,5-hexafluoro-2,4-pentanedione with aromatic aldehydes, alkyl formate and N,N-dialkyl amides in acetic acid anhydride gave β,β-di(trifluoroacetyl) ethylene derivatives, (CF3CO)2CCR1R2, which reacted readily with some nucleophiles containing reactive hydrogen such as ArSH, HP (O) (OR)2 giving the corresponding addition product. When treated with 3,4-dihydro-2H-pyran, a cycloaddition
1,1,1,5,5,5-六氟-2,4-戊二酮与芳族醛,甲酸烷基酯和N,N-二烷基酰胺在乙酸酐中的反应生成β,β-二(三氟乙酰基)乙烯衍生物, (CF 3 CO)2 CCR 1 - [R 2,其与含有活泼氢如ARSH,HP(O)(OR)的亲核一些容易反应2得到相应的加成产物。当用3,4-二氢-2 H-吡喃处理时,形成环加成产物。