Pyrolysis of allyl ethers. Unimolecular fragmentation to propenes and carbonyl compounds
作者:R. C. Cookson、S. R. Wallis
DOI:10.1039/j29660001245
日期:——
about 500° allyl ethers undergo decomposition through a cyclic, six-atom transition state with transfer of a hydrogen atom to give high yields of a carbonyl compound and a propene, in which the double bond has moved from the 2,3- to the 1,2-position of the allyl system. The rate of reaction is rather insensitive to structural variation in either the allyl or alkyl part of the ether. Allyl α-deuterodiphenylmethyl
在约500°的气相中,烯丙基醚通过六原子的环状过渡态分解并转移氢原子,从而高产率地获得了羰基化合物和丙烯,其中双键已从2处移出3-烯丙基系统的1,2-位置。反应速率对醚的烯丙基或烷基部分的结构变化不敏感。烯丙基α-氘代二苯甲基醚的反应仅比未氘代化合物慢约10%。