Copper-Catalyzed Cross-Dehydrogenative Coupling (CDC) of Alkynes and Benzylic CH Bonds
作者:Camille A. Correia、Chao-Jun Li
DOI:10.1002/adsc.201000066
日期:——
The activation of benzylic CH bonds and subsequent coupling with terminal alkynes in the presence of 2,3‐dichloro‐5,6‐dicyanoquinone (DDQ) and a catalyticamount of copper(I) triflate is presented. Good to moderate yields of disubstituted alkynes are obtained for this cross‐dehydrogenative coupling (CDC) reaction between a variety of aromatic alkynes and diphenylmethane derivatives.
Sp–sp3 C–C bond formation via Fe(OTf)3/TfOH cocatalyzed coupling reaction of terminal alkynes with benzylic alcohols
作者:Shi-Kai Xiang、Li-He Zhang、Ning Jiao
DOI:10.1039/b911905a
日期:——
An Fe(OTf)(3)/TfOH cocatalyzed sp-sp(3) C-C bond formation through the coupling of benzylic alcohols with terminalalkynes in the absence of base has been developed. H(2)O is the sole by-product.
Iron-mediated sp-sp3 C-C bond formation through the cross dehydrogenative coupling (CDC) of terminal alkynes with benzylic ethers or alkanes has been developed. The inexpensive iron salt is used as the catalyst to make this transformation environmentally benign.