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Expired
Application number
GB23341/60A
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Bayer AG
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Bayer AG
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Publication of GB877407ApublicationCriticalpatent/GB877407A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
a -cyano-b -alkyl-b -phenyl acrylic acid esters are prepared by reacting an N-alkyl substituted alkyl phenyl ketimine with a cyanoacetic acid ester in the presence of at least the stoichiometric amount of acid. The ketimine may be first prepared by reacting an alkyl phenyl ketone, in which the ring may be substituted e.g. by alkyl or alkoxy groups, with a primary alkylamine and the so-obtained ketimine reacted with the cyano ester optionally in the presence of an organic solvent. The acid may be organic or inorganic and acetic acid is preferably used. In examples ketimines obtained from cyclohexylamine and acetophenone, p-methoxyacetophenone and propiophenone are reacted with methyl and nonyl cyanoacetates to give the corresponding substituted acrylates.
GB23341/60A1959-07-041960-07-04Process for the production of ª--cyan-ª--alkyl-ª--phenyl acrylic esters
ExpiredGB877407A
(en)
Process for preparing organometallic compounds by reaction of a polyvalent metal with an organic ester of inorganic acid and with an organic bimetallic compound
Procedure for the transformation of picratos in corresponding salts of mineral acids or in free bases (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of amidas of the alpha-N-alkyl-carboxyl piperidin and alpha-N-alkyl-pyrrolidin carboxylic acids (Machine-translation by Google Translate, not legally binding)
A process for the transformation of dl treo treo alpha-amino beta-hydroxy-aril-propionic acids in one of its optically active isomeric forms (Machine-translation by Google Translate, not legally binding)