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Hydrolysis of 4-cyano-1-ethoxypyrimido[1,6-a]benzimidazole: Formation of a ynaminonitrile and benzimidazolidines |
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| Authors: | Yoshimi Zama Yoshibisa Okamoto Kaname Takagi Yoshihisa Kurasawa Atsushi Takada |
| Abstract: | The title compound 4 was hydrolyzed to a new type of ynaminonitrile 5 and benzimidazolidines 7 and 9 under acidic or basic conditions. Reaction mechanisms were proposed. |
| Keywords: | |