作者:Jacek Ścianowski、Zbigniew Rafiński、Aleksandra Szuniewicz、Andrzej Wojtczak
DOI:10.1016/j.tet.2009.10.005
日期:2009.12
A convenient method for the synthesis of optically active dialkyl diselenides derived from bicyclic terpenes functionalized with hydroxy, etheral, sulfide, and selenide groups is described. The diselenides were used for a synthesis of chiral electrophilic selenium reagents, then in the asymmetric selenenylation of styrene and selenocyclization with o-allylphenol. The influence of nonbonding selenium-heteroatom
描述了一种方便的合成旋光性二烷基二硒化物的方法,所述二烷基二硒化物衍生自被羟基,醚基,硫化物和硒基团官能化的双环萜烯。将二硒化物用于合成手性亲电子硒试剂,然后用于苯乙烯的不对称亚硒基化和与邻烯丙基苯酚的硒环化。研究了生成的有机硒亲电体中非键合的硒-杂原子相互作用对加成反应的立体选择性的影响。通过DFT方法在B3LYP(6-311G(d))水平上的计算,证实了所研究系统中存在非键合的硒-杂原子相互作用。