A study of hydrogenation of benzhydrols in the presence of catalytic amount of triflic acid
作者:Christophe Waterlot、Daniel Couturier、Marc De Backer、Benoît Rigo
DOI:10.1139/v00-082
日期:2000.9.1
triethylsilane, in the presence of catalytic amount of triflic acid proceeds via dibenzhydryl ethers. These ethers do not disproportionate to benzophenones and diphenylmethanes but are reduced by triethylsilane to diarylmethanes.Key words: catalytic reduction, benzhydrols, dibenzhydryl ethers, triethylsilane.
An economical way to obtain new monomers, precursors of electron transfer polymers, is described. These monomers were obtained by a Heck reaction between amino or halogeno-2,5-dimethoxydiarylmethane and methylacrylate. Different routes for the ionic reduction of various acetophenones to the corresponding diarylmethanes were studied. The yields and the nature of the by-products was stongly dependent