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(3+2) CYCLOADDITION OF N-BENZYLAZOMETHINE METHYLIDE WITH 4-ARYLIDENE-1H-IMIDAZOLE-5(4H)-ONES

Андрей В. Кулешов, Павел Н. Сольев, Александр Д. Володин, Александр А. Корлюков, Михаил С. Баранов, Андрей А. Михайлов
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Abstract


4-Arylidene-1H-imidazol-5(4H)-ones react with N-benzylazomethine methylide under trifluoroacetic acid catalysis to form 9-aryl-1,3,7-triazaspiro[4.4]non-1-en-4-ones in 66–95% yields as one diastereomer in each case.

 


Keywords


azomethine ylides; imidazole; pyrrolidine; spirocyclic compounds; (3+2) cycloaddition.

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