Photolysis of Triarylmethylphosphonic Acids and Their Esters
作者:Min Shi、Yoshiki Okamoto、Setsuo Takamuku
DOI:10.1246/bcsj.63.453
日期:1990.2
Upon UV-irradiation in an alkaline alcohol solution, some triarylmethylphosphonic acids underwent C–P bond cleavage to give triarylmethanes and alkyl dihydrogenphosphates, while, in an acidic or a neutral alcohol solution, they afforded biaryls. Their dimethyl esters gave also biaryls and dimethyl [alkoxy(aryl)methyl]phosphonates, which were derived from the insertion of (dialkoxyphosphinyl)arylcarbenes
The Complex Role of the Triphenylmethyl Motif in Anticancer Compounds
作者:Rahul Palchaudhuri、Vitaliy Nesterenko、Paul J. Hergenrother
DOI:10.1021/ja8020999
日期:2008.8.1
Compounds incorporating the triphenylmethyl motif constitute an emerging family of potent anticancer agents. Although several small molecules containing this pharmacophore have now been identified, the mechanism of cell death induction for some of these compounds is unknown. In an effort to define their mechanism of action, and to distinguish subtypes within the group of compounds containing the triphenylmethyl
Synopsis. Upon UV irradiation in methanol,diaryl triphenylmethylphosponate underwent three types of elimination of two aryl groups to give biaryls: the first is an α,α-elimination of two phenyl groups from a triphenylmethyl group which leads to formation of the corresponding carbene intermidiate; the second is an elimination of two aryl groups from a diaryl ester group to afford biaryl; the third is an elimination of phenyl and aryl groups from both moieties to give arylbenzene.
Photolysis of triphenylmethylphosphonic acid and its dimethyl esters: a novel photochemical generation of dimethoxyphosphinyl(phenyl)carbene by α,α-elimination of phenyl groups
作者:Shi Min、Yoshiki Okamoto、Setsuo Takamuku
DOI:10.1039/c39890000151
日期:——
Photolysis of triphenylmethylphosphonic acid and its dimethyl ester in ethanol gave biphenyl and a product derived from dimethoxyphosphinyl(phenyl)carbene.