Reaction of allylic and benzylic alcohols and esters with PPh3/I2: one-pot synthesis of β,γ-unsaturated compounds
作者:E.J. Alvarez-Manzaneda、R. Chahboun、E. Cabrera Torres、E. Alvarez、R. Alvarez-Manzaneda、A. Haidour、J.M. Ramos López
DOI:10.1016/j.tetlet.2005.03.132
日期:2005.5
treatment of tertiary and secondary allylic alcohols containing a terminal double bond, and their acetyl derivatives, with triphenylphosphine and iodine under mild conditions leads regiospecifically and in high stereoselectivity to the corresponding primary allylic iodides, which can react ‘in situ’ with diverse nucleophiles. Primary allylic alcohols and benzyl alcohols and acetates are also transformed
在温和条件下用三苯膦和碘处理含有末端双键的叔和仲烯丙基醇及其乙酰基衍生物,会在区域选择性和立体选择性方面导致相应的伯烯丙基碘,后者可以与各种亲核试剂“就地”反应。在这些条件下,伯烯丙基醇,苄醇和乙酸酯也被转化成相应的碘化物。