Geminal vinyl diazides. 8. Substituent-dependent competition between 1,5- and 1,5'-cyclization of vinyl azides. 1,2,3-Triazoles and 4,5-dihydro-1H-tetrazol-5-ylidenes from methyl 3,3-diazido-2-cyanoacrylate with amines
Geminal vinyl diazides. 8. Substituent-dependent competition between 1,5- and 1,5'-cyclization of vinyl azides. 1,2,3-Triazoles and 4,5-dihydro-1H-tetrazol-5-ylidenes from methyl 3,3-diazido-2-cyanoacrylate with amines