名称:
The kinetics of the quantitative, symmetry allowed, reverse electron demand cycloadditions of the pseudo-1,3-dipole SNS+with alkynes and nitriles; the preparation and X-ray crystal structures of NCCSNSCHAsF6and SNSNC–CNSNS(AsF6)2: the precursor to a new class of S2N2C–CN2S2n+(n= 0,1,2) bicyclics
摘要:
SNSAsF6与炔烃和腈的环加成反应速率随着三键电离势(Ei)的降低而增加,因此与HCCCN的反应优先发生在CC键上;然而,它与NCCN定量反应生成二阳离子([图形省略])22+,从中制备出了新系列S2N2C–CN2S2n+(n= 0,1,2)双环化合物的若干成员。