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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Priority claimed from JP652570Aexternal-prioritypatent/JPS4832116B1/ja
Priority claimed from JP652670Aexternal-prioritypatent/JPS4835078B1/ja
Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Application grantedgrantedCritical
Publication of FR2076923A5publicationCriticalpatent/FR2076923A5/en
2-Cyanomethylquinazolinone derivs. These have the formula: where the A is (un)substd. benzene or naphthalene ring and R is H, (un)substd. alkyl or cyanoalkyl. The compounds are used as dye intermediates.