preparation of allylic phosphorusylides directly from Morita–Baylis–Hillman (MBH) alcohols in an environmentally benign manner was developed. With the assistance of a calcium catalyst, the SN2′ process between phosphines and allylic alcohols occurred smoothly, delivering allylic phosphorus salts and calcium-stabilized hydroxide ions. Then, in situ deprotonation gave the allylic phosphorusylides with water as
开发了一种以环境友好的方式直接从森田-贝利斯-希尔曼(MBH)醇制备烯丙基磷酰化物的新策略。在钙催化剂的辅助下,膦与烯丙基醇之间的S N 2'过程顺利进行,并释放出烯丙基磷盐和钙稳定的氢氧根离子。然后,原位去质子化得到烯丙基磷酰化物,水是唯一的副产物。官能化的1,3-二烯部分可通过Wittig烯化作用捕获酰基化物而方便地获得。