Copper(II)-Promoted C-C Bond Formation by Oxidative Coupling of Two C(sp<sup>3</sup>)-H Bonds Adjacent to Carbonyl Group to Construct 1,4-Diketones and Tetrasubstituted Furans
作者:Shuai Mao、Ya-Ru Gao、Shao-Liang Zhang、Dong-Dong Guo、Yong-Qiang Wang
DOI:10.1002/ejoc.201403274
日期:2015.2
The copper(II)-promoted C–C bond formation from the coupling of two C(sp3)–H bonds that are adjacent to a carbonylgroup was achieved. This protocol offers a simple and efficient approach to 2,3-disubstituted 1,4-diketones and tetrasubstituted furans. This method features a wide substrate scope and high functional group tolerance.
通过与羰基相邻的两个 C(sp3)-H 键的偶联,实现了铜 (II) 促进的 C-C 键形成。该协议为 2,3-二取代 1,4-二酮和四取代呋喃提供了一种简单有效的方法。该方法具有广泛的底物范围和高官能团耐受性。
Oxygen as a Crucial Comonomer in Alkyne-Based Polymerization toward Functional Poly(tetrasubstituted furan)s
作者:Bo Song、Kun Hu、Anjun Qin、Ben Zhong Tang
DOI:10.1021/acs.macromol.8b01293
日期:2018.9.25
difficulty in chain growth. In this paper, we develop a new alkyne-based polymerization in which O2 serves as a comonomer under mild reaction conditions. Functionalized diynes could react with O2 in the presence of Pd(OAc)2/ZnCl2 in N,N-dimethylacetamide (DMAc) and perfluorodecalin under atmospheric oxygen. Solublepoly(tetrasubstituted furan)s with high weight-average molecular weights (Mw up to 14 900)