Palladium-catalyzed direct ortho-ethoxycarbonylation of azobenzenes and azoxybenzenes with diethyl azodicarboxylate
作者:Ning Xu、Dengke Li、Yicheng Zhang、Lei Wang
DOI:10.1039/c5ob01264c
日期:——
A palladium-catalyzed direct ortho-ethoxycarbonylation of azobenzenes and azoxybenzenes with diethyl azodicarboxylate (DEAD) was developed under mild reaction conditions.
A Unique Alkylation of Azobenzenes with Allyl Acetates by Rh<sup>III</sup>-Catalyzed C–H Functionalization
作者:Hong Deng、Hongji Li、Lei Wang
DOI:10.1021/acs.orglett.5b00957
日期:2015.5.15
A novel RhIII-catalyzed direct alkylation of azobenzenes with allylacetates through C–H activation and functionalization is demonstrated in which the allylacetates serve as unique alkylation agents. The rhodium-catalyzed alkylation provides a highly efficient and atom-economic approach to a series of azo compounds.
Preparation of 1,10-Dimethyl-benzo[c]cinnolines by Photochemical Cyclodehydrogenation of Azobenzenes
作者:Reinhard Wimmer、Norbert Müller
DOI:10.1007/pl00010128
日期:1998.11
Photocyclodehydrogenation of methylated azobenzene derivatives to the corresponding benzo[c]cinnolines was utilized for the synthesis of a number of compounds featuring sterically hindered methyl groups with different degrees of sterical hindrance including close mutual methyl-methyl interaction. Such compounds are of special theoretical interest in the context of intramolecular dynamics, spectroscopy, and quantum (tunneling) effects. Factors determining synthetic accessibility and product distribution are discussed.