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Carbamic acid, N-[(1R)-1-(aminothioxomethyl)-2-methylpropyl]-, 1,1-dimethylethyl ester synthesis

2synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 3 steps
1: Et3N / CH2Cl2 / 0.17 h / 20 °C
2: 5.6 g / conc. NH4OH / CH2Cl2 / 0.17 h
3: Lawesson's reagent / benzene / 1 h / Heating

References:

Ciufolini, Marco A.;Shen, Yong-Chun [Organic Letters,1999,vol. 1,# 11,p. 1843 - 1846]