Rh-Catalyzed CC Cleavage of Benzyl/Allylic Alcohols to Produce Benzyl/Allylic Amines or other Alcohols by Nucleophilic Addition of Intermediate Rhodacycles to Aldehydes and Imines
作者:Xi-Sha Zhang、Yang Li、Hu Li、Kang Chen、Zhi-Quan Lei、Zhang-Jie Shi
DOI:10.1002/chem.201201867
日期:2012.12.7
imines was slower than the CC cleavage and the equilibrium between the rhodacycle and phenylpyridine; iv) the whole transformation was a combination of two sequences of CC cleavage/nucleophilic addition and CC cleavage/protonation/CH activation/nucleophilic addition, with the latter being perhaps the main pathway. We also demonstrated the first example of cleavage of an C(alkenyl)C(benzyl) bond
Cobalt-catalyzed divergent functionalization of N-sulfonyl amines via β-carbon elimination
作者:Lun Xu、Hang Shi
DOI:10.1007/s11426-022-1251-4
日期:2022.11
This article demonstrates a catalytic method for C(aryl)—C(alkyl) bond functionalization of N-sulfonylamines. A cobalt(III) catalyst was used to cleave the C—C bond via β-carbon elimination, providing a metallacycle intermediate. Subsequent allylation, amidation, or alkenylation of the intermediate led to divergent conversions in the presence of diverse coupling partners. when the coupling partner