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二芳基酮、次磷酸与催化量的碘在乙酸中回流反应 ,得到相应的还原产物二芳基甲烷 ,不影响芳环上的溴原子。分子中与酮共轭的双键易被还原。芳烷基酮及二烷基酮不适用。7例收率 97%～ 10 0 %。二芳酮用H_3PO_2-I_2系统的还原@马翔
Diaryl ketone, hypophosphorous acid and a catalytic amount of iodine reflux in acetic acid to give the corresponding reduction product diaryl methane, does not affect the ring bromine atoms. The double bond conjugated to the ketone in the molecule is easily reduced. Aralkyl ketones and dialkyl ketones are not applicable. Seven cases of the yield of 97% ~ 100%. Biaryl ketone with H_3PO_2-I_2 system reduction @ Ma Xiang