C−C Bond-Forming Strategy by Manganese-Catalyzed Oxidative Ring-Opening Cyanation and Ethynylation of Cyclobutanol Derivatives
作者:Rongguo Ren、Zhen Wu、Yan Xu、Chen Zhu
DOI:10.1002/anie.201510973
日期:2016.2.18
cyano C1 unit and ethynyl C2 unit are regiospecifically introduced to the γ‐position of ketones at room temperature, providing a mild yet powerful method for production of elusive aliphatic nitriles and alkynes. All transformations described are based on a common sequence: 1) oxidative ring‐opening of cyclobutanol substrates by C−C bond cleavage; 2) radical addition to triple bonds bearing an arylsulfonyl
Manganese-catalyzed regiospecific sp<sup>3</sup>C–S bond formation through C–C bond cleavage of cyclobutanols
作者:Rongguo Ren、Zhen Wu、Chen Zhu
DOI:10.1039/c6cc01843b
日期:——
A manganese-catalyzed regioselective sp3 C-S bond formation through C-C bond cleavage of cyclobutanols is described. A variety of primary and secondary alkyl thioethers are efficiently prepared under mild reaction conditions....
An Oxidative Rearrangement of 6-Phenylbicyclo[3.2.0]heptan-6-ol to 1,1′-Biphenyl-Carbaldehydes: A Mechanistic Study
作者:Mustafa Ceylan、Esra Fındık、Hasan Seçen
DOI:10.1002/hlca.200890058
日期:2008.3
Acid-catalyzedrearrangement of 6-phenylbicyclo[3.2.0]heptan-6-ol gave 1,1′-biphenyl and 1,1′-biphenyl-carbaldehydes in small amounts as well as the expected rearrangement products. A detailed study of the reaction mechanism revealed that the conversion occurs via an oxidative process through the consecutive formation of cycloheptadienes, cycloheptatrienes, and 1,1′-biphenyls. The acid-catalyzed rearrangement