Xanthate-mediated intermolecular alkylation of pyrazines
作者:Qi Huang、Ling Qin、Samir Z. Zard
DOI:10.1016/j.tet.2018.08.040
日期:2018.10
An expedient approach for the intermolecular C-H functionalization of pyrazines and other heteroarenes by the radical chemistry of xanthates is reported. Incorporation of a multitude of functional alkyl groups onto these heteroarenes proceeds in good yield and good to excellent regioselectivity, leading to highly functionalized heteroaromatics.
A direct, versatile route to functionalized trialkoxysilanes
作者:Béatrice Quiclet-Sire、Yuuki Yanagisawa、Samir Z. Zard
DOI:10.1039/c3cc48570f
日期:——
The peroxide initiated radical addition of dithiocarbonates (xanthates) to trialkoxy vinylsilanes leads to functionalized trialkoxysilanes. Prior addition of the dithiocarbonates to an alkene before reaction with the vinylsilane can be used to increase the complexity of the final product.