Catalytic Allylic Alkylation via the Cross-Dehydrogenative-Coupling Reaction between Allylic sp3 C−H and Methylenic sp3 C−H Bonds
摘要:
A catalytic allylic alkylation was developed via the cross-dehydrogenative-coupling reaction of allylic sp3 C-H and methylenic sp3 C-H catalyzed by copper bromide and cobalt chloride in the presence of an oxidizing reagent, t-BuOOH. This methodology provides a direct way to use allylic sp3 C-H bonds for forming C-C bonds.
Perchloric Acid Catalyzed Homogeneous and Heterogeneous Addition of β-Dicarbonyl Compounds to Alcohols and Alkenes and Investigation of the Mechanism
作者:Pei Nian Liu、Li Dang、Qing Wei Wang、Shu Lei Zhao、Fei Xia、Yu Jie Ren、Xue Qing Gong、Jun Qin Chen
DOI:10.1021/jo100517k
日期:2010.8.6
The direct addition of various β-dicarbonylcompounds to a series of secondary alcohols and alkenes has been achieved using 1 mol % perchloric acid (HClO4) as the catalyst. The HClO4-catalyzed reactions could be conveniently conducted in commercial solvent and gave moderate to excellent yields. Moreover, the silica gel-supported HClO4 could also catalyze the heterogeneous addition for a series of substrates
Catalytic Allylic Alkylation via the Cross-Dehydrogenative-Coupling Reaction between Allylic sp<sup>3</sup> C−H and Methylenic sp<sup>3</sup> C−H Bonds
作者:Zhiping Li、Chao-Jun Li
DOI:10.1021/ja056541b
日期:2006.1.1
A catalytic allylic alkylation was developed via the cross-dehydrogenative-coupling reaction of allylic sp3 C-H and methylenic sp3 C-H catalyzed by copper bromide and cobalt chloride in the presence of an oxidizing reagent, t-BuOOH. This methodology provides a direct way to use allylic sp3 C-H bonds for forming C-C bonds.