Synthesis of β-(N-1,2,3-Triazolyl)-Substituted α,β-Unsaturated α-Amino Acid Derivatives. A New Example of 1H- to 2H-1,2,3-Triazole Isomerisation
摘要:
Synthesis of beta-1H-1,2,3-triazol-1-yl and beta-2H-1,2,3-triazol-2-yl alpha,beta-unsaturated alpha-amino acid derivatives is reported. 1H-1,2,3-Triazole 4 was found to isomerise to the corresponding 2H-1,2,3-triazole 7.
Synthesis of Highly Functionalized Imidazo[1,5-<i>a</i>]pyrazines
作者:Bojan Verček、Tomaž Trček
DOI:10.1055/s-2006-950211
日期:2006.10
Four 'one-pot' syntheses of highly substituted imidazo[1,5-a]pyrazines 7-9, starting from diaminomaleonitrile derivatives 1 and 2, and imidazoles 3 and 5, are described.