Phenylurea reacted with dichlorophenylphosphine and aldehydesor ketones by Mannich-type reaction in anhydrous benzene to give five-mem-bered phosphorous heteroc
Racemic O-methyl O-pheayl thiophosphoric acid 1 has been successfully resolved through its quinine and brucine salts in methanol solution by fractional crystall
A method for quantitative evaluating the enhancement ofthe rate of Type Ⅱ photosensitized oxidation by D<sub>2</sub>O was suggested.The effect of substrate con