Efficient and Convenient Deprotection of Thiocarbonyl to Carbonyl Compounds Using 3-Carboxypyridinium and 2,2'-Bipyridinium Chlorochromates in Solution, Dry Media, and under Microwave Irradiation
作者:Iraj Mohammadpoor-Baltork、Hamid Reza Memarian、Kiumars Bahrami
DOI:10.1007/s00706-003-0095-0
日期:2004.4.1
deprotection reactions is reported. Different types of thioamides, thioureas, thiono esters, and thioketones are deprotected to their corresponding carbonyl compounds with these reagents in good to excellent yields. The reactions were carried out in solution, under solvent-free conditions, and under microwave irradiation. The results show that with both reagents the rates of the reactions and the yields
报道了3-羧基吡啶鎓( CPCC )和2,2'-联吡啶鎓( BPCC)氯铬酸盐 在脱保护反应中的合成效用 。用这些试剂将不同类型的硫代酰胺,硫脲,硫代酸酯和硫代酮以良好或优异的产率脱保护为其相应的羰基化合物。反应在溶液中,无溶剂条件下和在微波辐射下进行。结果表明,在微波辐射下,两种试剂的反应速率和产率通常最高。