Facile Alder-Ene Reactions of Silylallenes Involving an Allenic C(sp<sup>2</sup>)H Bond
作者:Venkata R. Sabbasani、Genping Huang、Yuanzhi Xia、Daesung Lee
DOI:10.1002/chem.201503243
日期:2015.11.23
involving the activation of an allenic C(sp2)H over an allylic C(sp3)H bond is described. In this ene reaction, the presence of a silyl substituent was found to be critical for the observed reactivity and selectivity since the corresponding alkyl‐substituted allenes show different reaction profiles. Computational studies show that the origin of this unusual reactivity is the lower bond dissociation
容易且涉及丙二烯C(SP的活化silylallenes选择性阿尔德烯反应2) ħ超过烯丙基C(SP 3) H键进行说明。在该烯键反应中,发现甲硅烷基取代基的存在对于观察到的反应性和选择性至关重要,因为相应的烷基取代的丙二烯显示出不同的反应曲线。计算的研究表明,这种不寻常的反应性的原点是α-C(SP的下键解离能2)中的H silylallenes键相比于相应非甲硅烷丙二烯。