β-Keto phosphonic esters - Communication 5. Structures of the products of the reaction of some α-halo ketones of the carbocyclic series with triethyl phosphite and sodium diethyl phosphite

1. On the basis of chemical and spectrographic data it was shown that the product of the action of sodium diethyl phosphite on 2-chlorocyclopentanone is diethyl 1,2-epoxycyclopentylphosphonate. The product of the action of sodium diethyl phosphite on 2 -bromocyelohexanone is a mixture of 1-cyclohexen-1-yl diethyl phosphate and diethyl 1,2-epoxycyclohexylphosphonate. 2. The products of the action of sodium diethyl phosphite and of triethyl phosphite on 2-chloro-2-methyl-cyclohexanone consist of diethyl 2-methyl-1-cyclohexen-1-yl phosphate; the product of the action of triethyl phosphite on 3-bromo-3-methyl-2-butanone is diethyl isopropenyl phosphate. 3. The product of the action of sodium diethyl phosphite on 3-bromocamphor is the corresponding mixed phosphoric ester. © 1961 Consultants Bureau Enterprises, Inc