Generation of azomethine imine and metal-free formal 1,3-dipolar cycloaddition of imine with PhIO: reaction, scope, and synthesis
作者:Dilip K. Maiti、Nirbhik Chatterjee、Palash Pandit、Sandip K. Hota
DOI:10.1039/b924761k
日期:——
Generation of azomethine imine and its scope in regioselective 1,3-dipolar cycloaddition (DC) of imine with PhIO toward highly substituted Δ2-1,2,4-triazoline, 1,2,4-triazole, and their fused, chiral, and sugar-based analogues are demonstrated.
Caveat in alkylative fragmentation of aldehyde tosylhydrazones of cyclic ethers
作者:S. Chandrasekhar、M. Venkat Reddy、Mohamed Takhi
DOI:10.1016/s0040-4039(98)01359-8
日期:1998.9
Tosylhydrazones of aldehydes at the cl-position of cyclic ethers when exposed to carbon nucleophiles produce either ring opened alkylated olefinic alcohols and/or cyclic alkylated vinyl ethers, the ratio of which is dependent on nature of hydrazone and nucleophile used. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.