REACTIONS OF N,O-BIS(BROMOMAGNESIO) α-HYDROXY CARBOXAMIDES WITH CHLOROFORMIC ESTERS
In the reactions of N,O-bis(bromomagnesio) α-hydroxy α-alkoxy carboxamides of the aliphatic series with chloroformic esters in boiling toluene unsaturated compounds are formed.Analogous reactions conducted at a higher temperature (boiling mesitylene) lead to the formation of reduced products.These reactions with ethyl chloroformate are faster and go with higher yields of the target product than the corresponding reactions with benzyl chloroformate.
Zul'karnaev, R. I.,Fedotov, A. S.,Lapkin, I. I.
p. 316 - 321
(2007/10/02)
SYNTHETIC METHODS BASED ON HALOGENOMAGNESIUM ALCOHOLATES. XI. REACTION OF HALOGENOMAGNESIUM ALCOHOLATES WITH α-CHLORINATED THIOESTERS
A method is developed for the synthesis of esters of α-alkoxy-α-(alkylthiomethoxy)acids, based on the reaction of alkylmagnesium bromides with dialkyl oxalates with the subsequent action of α-chlorinated sulfides on the obtained bromomagnesium alcoholates of the α-alkoxy-α-hydroxy esters.
Kashinskii, V. N.,Zul'karnaev, R. I.,Lapkin, I. I.
p. 1420 - 1422
(2007/10/02)
SYNTHETIC METHODS BASED ON HALOGENOMAGNESIUM ALCOHOLATES. X. REACTIONS OF LITHIUM AND HALOGENOMAGNESIUM ALCOHOLATES WITH CHLORINATED ETHERS
The reaction of α-chlorinated ethers with lithium and halogenomagnesium alcoholates were investigated.Depending on the character of the radicals contained in the alcoholates, either alkoxymethyl derivatives of the enolic form of α-keto esters or the same derivatives of α-hydroxy esters are formed.
Kashinskii, V. N.,Demanov, V. A.,Lapkin, I.I.
p. 72 - 75
(2007/10/02)
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