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All articles of this category One-carbon homologation has been achieved in novel syntheses of the title compounds by one-pot reaction of 1-(triphenylphosphoroylideneaminomethyl)benzotriazole ( 1 ) with Grignard reagents followed by in situ transformations of the phosphazene functionality with isocyanates, aldehydes, carbon disulfide, ethylene oxide, and alkyl halides, respectively.
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KATRITZKY et al. (1990) studied this question.
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