Triethylamine → HCID 9925711, compound

Participants

Reaction Steps

To an ice-cold solution of the diamine of Step C (4.9 g) and triethylamine (5.8 mL) in chloroform (70 mL) under nitrogen was added thiophosgene (1.6 mL). After 20 minutes at ambient temperature, additional thiophosgene (0.5 mL) was added. After 15 minutes, the reaction was quenched with water and extracted with dichloromethane. The extracts were dried over sodium sulfate and concentrated in vacuo to give a brown oil. The crude material was dissolved in dichloromethane and absorbed onto a column of Merck-60 flash silica gel. Elution with 11% ethyl acetate in hexane provided a yellow solid which was triturated with diethyl ether to give the title product (3.2 g, 55.6%) as a white solid, m.p. 82-84° C.

Provenance & Evidence