A new efficient synthesis of isothiocyanates from amines using di-tert-butyl dicarbonate
作者:Henrik Munch、Jon S. Hansen、Michael Pittelkow、Jørn B. Christensen、Ulrik Boas
DOI:10.1016/j.tetlet.2008.03.045
日期:2008.5
Alkyl and aryl amines are converted smoothly to the corresponding isothiocyanates via the dithiocarbamates in good to excellent yields using di-tert-butyl dicarbonate (Boc2O) and 1–3 mol % of DMAP or DABCO as catalyst. As most of the byproducts are volatile, the work-up involves simple evaporation of the reaction mixture.