78515-30-7Relevant academic research and scientific papers
Copper(I)-Catalyzed Enyne Oxidation/Cyclopropanation: Divergent and Enantioselective Synthesis of Cyclopropanes
Shen, Wen-Bo,Tang, Xiang-Ting,Zhang, Ting-Ting,Lv, Dong-Can,Zhao, Dan,Su, Tong-Fu,Meng, Lei
supporting information, p. 1285 - 1290 (2021/02/20)
An efficient copper(I)-catalyzed enyne oxidation/cyclopropanation for the modular synthesis of cyclopropane derivatives is described, which represents the first non-noble metal-catalyzed enynes oxidation/cyclopropanation by the in situ generated α-oxo copper carbenes. This protocol allows the assembly of valuable cyclopropane-γ-lactams in generally good to excellent yields with excellent diastereoselectivity. More significantly, the enantioselective version of enyne oxidation/cyclopropanation has been disclosed with chiral copper catalysts.
Gold-catalyzed intermolecular hydroamination of allenes with sulfonamides
Zhang, Chen,Zhang, Shao-Qiao,Cai, Hua-Jun,Cui, Dong-Mei
, p. 1045 - 1050 (2013/07/25)
A co-catalyst of (PPh3)AuCl/AgOTf for the intermolecular hydroamination of allenes with sulfonamides is shown. The reaction proceeded smoothly under mild conditions for differently substituted allenes giving N-allylic sulfonamides in good yields with high regioselectivity and E-selectivity.
