Synthesis of α-Tertiary Amine Derivatives by Intermolecular Hydroamination of Unfunctionalized Alkenes with Sulfamates under Trifluoromethanesulfonic Acid Catalysis
作者:Jun Fei、Zhen Wang、Zheren Cai、Hao Sun、Xu Cheng
DOI:10.1002/adsc.201500646
日期:2015.12.14
An efficient and mild trifluoromethanesulfonic acid-catalyzed hydroamination of unfunctionalized alkenes to afford α-tertiary amine derivatives at temperatures as low as room temperature is reported. 2,2,2-Trifluoroethyl sulfamate was found to be the optimal nitrogen source because its good solubility in both organic solvents and water facilitated both conversion and purification. The reaction conditions
Enantioselective, Lewis Base-Catalyzed, Intermolecular Sulfenoamination of Alkenes
作者:Aaron Roth、Scott E. Denmark
DOI:10.1021/jacs.9b07019
日期:2019.9.4
A method for the catalytic, enantioselective, intermolecular, 1,2-sulfenoamination of alkenes is described. Functionalization is achieved through the intermediacy of an enantioenriched, configurationally stable thiiranium ion generated by Lewis base activation of a readily available sulfur electrophile. A diverse set of anilines and benzylamines react with different styrenes to afford products in good
Enantio‐ and Regioselective NiH‐Catalyzed Reductive Hydroarylation of Vinylarenes with Aryl Iodides
作者:Yuli He、Chuang Liu、Lei Yu、Shaolin Zhu
DOI:10.1002/anie.202010386
日期:2020.11.23
A highly enantio‐ and regioselectivehydroarylation process of vinylarenes with aryl halides has been developed using a NiH catalyst and a new chiral bis imidazoline ligand. A broad range of structurally diverse, enantioenriched 1,1‐diarylalkanes, a structure found in a number of biologically active molecules, have been obtained with excellent yields and enantioselectivities under extremely mild conditions
Iron-catalysed, hydride-mediated reductive cross-coupling of vinyl halides and Grignard reagents
作者:Bryden A. F. Le Bailly、Mark D. Greenhalgh、Stephen P. Thomas
DOI:10.1039/c1cc14622j
日期:——
hydride-mediated reductive cross-coupling reaction has been developed for the preparation of alkanes. Using a bench-stable iron(II) pre-catalyst, reductive cross-coupling of vinyl iodides, bromides and chlorides with aryl- and alkyl Grignardreagents successfully gave the products of formal sp(3)-sp(3) cross-coupling reactions.