Allylic sulfides are transformed into homoallylic sulfides with complete allylic inversion by treatment with SmI2 and CH2I2 in THF. The reaction will involve allylic sulfonium ylides as an intermediate, which undergoes 2,3-rearrangement.
烯丙基
硫化物在THF中与
SmI2和
CH2I2反应后转化为完全烯丙基反转的同烯丙基
硫化物。该反应将涉及烯丙基磺鎓亚烯盐作为中间体,随后发生2,3重排反应。