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Reaction of 5-benzalbarbituric acid with trimethyl phosphite and tri(dimethylamino) phosphine
Authors
Arbuzov B.
Sorokina T.
Vinogradova V.
Publication date
1 January 1971
Publisher
Abstract
1. Trimethyl phosphite at -14° adds to 5-benzalbarbituric acid to give the (1:1) adduct with a bipolar structure, which then isomerizes to the methyl ester of the enol form of the dimethyl ester of barbituryl-5-benzylphosphonic acid. The latter is also formed by running the reaction at room temperature. 2. In the presence of glacial acetic acid, trimethyl phosphite reacts with 5-benzalbarbituric acid to give the dimethyl ester of barbituryl-5-benzylphosphonic acid in the enol form. 3. The reaction of tri(dimethylamino)phosphine with 5-benzalbarbituric acid gave the crystalline (1:1) adduct, which has the structure of a bipolar ion containing the P-C bond. © 1971 Consultants Bureau
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Kazan Federal University Digital Repository
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oai:dspace.kpfu.ru:net/132463
Last time updated on 07/05/2019
Kazan Federal University Digital Repository
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.kpfu.ru:net/101770
Last time updated on 07/05/2019