Reaction of quinazoline with trimethylsilyl cyanide and benzoyl chloride gave 2,4‐dicyano‐1,3‐dibenzoyl‐1,2,3,4‐tetrahydroquinazoline as the major product. This compound undergoes monoalkylation with methyl iodide in the presence of sodium hydride. Reaction of cinnoline with trimethylsilyl cyanide and benzoyl chloride gave 1,2‐dibenzoyl‐4‐cyano‐1,2‐dihydrocinnoline.
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Bhattacharjee et al. (1980) studied this question.
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