N-formylation of aliphaticprimaryamines with CO2/H2 to formamide is achieved with a heterogeneous non-noble metal Cu-based catalyst containing Cu2O/Cu interface sites.
使用包含 Cu 2 O/Cu 界面位点的多相非贵金属 Cu 基催化剂实现脂肪族伯胺与 CO 2 /H 2 的N-甲酰化作用。
In Situ Formation of Vilsmeier Reagents Mediated by Oxalyl Chloride: a Tool for the Selective Synthesis of<i>N</i>-Sulfonylformamidines
作者:Martin Gazvoda、Marijan Kočevar、Slovenko Polanc
DOI:10.1002/ejoc.201300402
日期:2013.8
N-Sulfonylformamidines were produced from sulfonamides or N-acylated sulfonamides using Vilsmeier reagent obtained in situ from N,N-disubstituted formamides and oxalyl chloride. Optically active substrates did not racemize during the process. The efficient and mild cleavage of N-sulfonylformamidines can be achieved with hydrazine hydrate in ethanol. The entire procedure constitutes a simple method