Facile synthesis of aliphatic isothiocyanates and thioureas on solid phase using peptide coupling reagents
作者:Ulrik Boas、Heidi Gertz、Jørn B. Christensen、Peter M.H. Heegaard
DOI:10.1016/j.tetlet.2003.10.182
日期:2004.1
Peptide coupling reagents can be used as versatile reagents for the formation of aliphatic isothiocyanates and thioureas on solid phase from the corresponding solid-phase anchored aliphatic primary amines. The formation of the thioureas is fast and highly chemoselective, and proceeds via formation of the intermediate isothiocyanate. The isothiocyanate and subsequent thiourea formation take place under
肽偶联剂可用作通用试剂,用于由相应的固相锚定的脂族伯胺在固相上形成脂族异硫氰酸酯和硫脲。硫脲的形成是快速且高度化学选择性的,并且通过中间体异硫氰酸酯的形成而进行。异硫氰酸酯和随后的硫脲的形成在标准肽偶联条件下进行,使用二硫化碳作为“氨基酸”。硫脲从树脂中释放出来,并以中等至高收率分离。