Transformations of 1-(Oxiranylmethyl)-1,2,3-triazoles into 2-(Oxiranyl-methyl)-1,2,3-triazoles and Alkanenitriles

[摘要]：New reactions for the transformation of 1-(oxiranyl-methyl)-1,2,3-triazoles into 2-(oxiranylmethyl)-1,2,3-triazoles or alkanenitriles were established. Successive treatment of the substrate with triflic acid and t-BuOH afforded 4,6-dihydro-5-hydroxy-1,3a,6a-triazapentalene derivative. Under the influence of NaH, the bicyclic compound was converted into a 2-(oxiranylmethyl)-1,2,3-triazole or an alkanenitrile. The reaction pathway depends on the substituent pattern of the epoxide side chain.

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