Photolysis of triphenylmethylphosphonic acid and its dimethyl esters: a novel photochemical generation of dimethoxyphosphinyl (phenyl) carbene by α, α-elimination …
S Min, Y Okamoto, S Takamuku
Index: Min, Shi; Okamoto, Yoshiki; Takamuku, Setsuo Journal of the Chemical Society, Chemical Communications, 1989 , # 3 p. 151 - 153
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Abstract
Photolysis of triphenylmethylphosphonic acid and its dimethyl ester in ethanol gave biphenyl and a product derived from dimethoxyphosphinyl(pheny1)carbene. ... Upon UV irradiation in alkaline aqueous solution, p-nitro- benzylphosphonic acid (1) underwent CP bond cleavage to give p-nitrotoluene and orthophosphate (quantum yield, Q) = 0.80).' This Photochemical C-PbondcleavageoccursonlY fully dissociated state. In acidic solution (1) is stable even ...
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