作者:Issa Yavari、Mohammad Bayat
DOI:10.1007/s00706-002-0609-1
日期:2003.9.1
with CH-acids, such as ethyl 2,4-dioxo-hexanoate and ethyl 2,4-dioxo-5-methylhexanoate, lead to vinyltriphenylphosphonium salts, which undergo an intramolecular Wittig reaction to produce cyclobutene derivatives in fairly high yields.
三苯基膦与乙酰二羧酸二烷基酯与CH-酸(例如2,4-二氧代己酸乙酯和2,4-二氧代-5-甲基己酸乙酯)反应生成的反应性1:1中间体的质子化反应会生成乙烯基三苯基phosph盐,进行分子内 Wittig 反应,以相当高的产率生产环丁烯衍生物。