Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2574162A
Inventor
Michael Hugh Richmond
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Distillers Co Yeast Ltd
Distillers Co Ltd
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Distillers Co Yeast Ltd
Distillers Co Ltd
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Publication date
Application filed by Distillers Co Yeast Ltd, Distillers Co LtdfiledCriticalDistillers Co Yeast Ltd
Priority to GB2574162ApriorityCriticalpatent/GB968752A/en
Publication of GB968752ApublicationCriticalpatent/GB968752A/en
C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Benzonitrile is prepared by passing a hydrogenated benzonitrile in the vapour phase at a raised temperature over a catalyst comprising palladium on a carbon support, the catalyst containing not less than 1% of palladium. A suitable starting material is a reaction product of butadiene and acrylonitrile, and an example is given in which tetrahydrobenzonitrile prepared in this way is passed at 450-500 DEG C. over a catalyst comprising 1% of palladium on carbon.
GB2574162A1962-07-051962-07-05Production of benzonitrile
ExpiredGB968752A
(en)
A procedure for the treatment of a mixture of symmetrical and asymmetric diclorotetrafluorethane. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of N-3, 4-methylenendixxibencil-n '3, 7, 11-trimethyle 2, 6, 10 dodecatrienilpiperazine. (Machine-translation by Google Translate, not legally binding)