Synthesis of 2-Amino-1,2,3-triazole Derivatives from Vicinal Diazides
作者:Duoli Sun、William H. Watson
DOI:10.1021/jo970197m
日期:1997.6.13
Triphenylphosphine reacts with naphthoquinone diazide to form almost quantitatively the phosphorane of a unique 2-amino-1,2,3-triazole derivative. This compound undergoes an aza-Wittig reaction with aldehydes and is readily hydrolyzed to the free 2-amino-1,2,3-triazole. The free amine reacts normally with acids and aldehydes, The 2-amino-1,2,3-triazole system is stable and high melting, and most derivatives give the parent ion as the largest peak in the mass spectrum. The compounds absorb at 300-350 nm with a strong emission in the range 500-700 nm, depending upon the substituents. Cyclic voltammetry shows one reversible, single-electron reduction wave.
SASTRY, C. V. REDDY;RAO, K. SRINIVASA;KRISHNAN, V. S. H.;RASTOGI, K.;JAIN+, INDIAN J. CHEM. B, 29,(1990) N, C. 396-398
作者:SASTRY, C. V. REDDY、RAO, K. SRINIVASA、KRISHNAN, V. S. H.、RASTOGI, K.、JAIN+
作者:Duoli Sun、Mariusz Krawiec、Charles F. Campana、William H. Watson
DOI:10.1007/bf02576456
日期:1997.10
A unique 2-amino-1,2,3-triazole system has been synthesized by the reaction of a vicinal diazide with triphenylphosphine. The crystal structures of five 2-amino-1,2,3-triazole systems, a ditetrazole and a Staudinger adduct are reported. Ab initio calculations are used to rationalize the structures and properties of these materials, and possible reaction pathways are discussed.