Experimental and computational evidence indicating that the initial carbene conformation is product determining in the reactions of cyclopropylmethylene
Stereoelectronic Effects in Diastereoselective Formation of Fulleroids
作者:Hiroshi Kitamura、Ken Kokubo、Takumi Oshima
DOI:10.1021/ol701789u
日期:2007.9.1
effects on diastereoselective formation of fulleroids in the reactions of C(60) with various unsymmetrical diazoalkanes were investigated. The steric demand on the stereochemical course of reactions dominated the diastereoselectivity for diazoalkanes bearing aliphatic as well as monosubstituted pi-resonating groups, whereas the stereoelectronic effects of coexisting pi-resonating aromatic and cyclopropyl