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Phosha-Meerwein Reaction of Diazo Esters |
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| Authors: | Konstantin A Popov Alexander M Polozov |
| Institution: | A.M. Butlerov Research Chemical Institute, Kazan State University , Lenin Str., 18, Kazan, 420008, Russian Federation |
| Abstract: | Abstract Diazo esters (la,b) react with trialkyl phosphates (2a–c) in the presence of BF3.OEt2 to give the corresponding phosphates (3a–e) in 42–58 % yields. The competed intra/intermolecular protonation in the reaction of la with dimethyl hydrogen phosphite leads to phosphonate. 4,and phosphite 5. |
| Keywords: | Diazo ester dimethyl hydrogen phosphite Lewis acid catalysis Phoshate zwitterionic phosphonium intermediate |