Studies on pyrimidine derivatives. XXV. Reaction of pyrimidinyl aldehydes and ketones with wittig reagents.
作者:TAKAO SAKAMOTO、KENICHI TANJI、HIROSHI YAMANAKA
DOI:10.1248/cpb.30.610
日期:——
The reaction of 2-and 4-pyrimidinecarbaldehydes with reagents such as ethoxycarbonyl-(1) and benzoyl-(triphenylphosphino) methanide (2) gave pyrimidines with an α, β-unsaturated carbonyl group. The reagents (1, 2) reacted with 2- and 4-acetylpyrimidines to give similar products, as expected. 4-(1-Chloroethyl) pyrimidines did not react with triphenylphosphine, though chloro-methylpyrimidines are know to give Wittig reagents.