Tetrahydrofuran → HCID 178492420, compound

Participants

Reaction Steps

0.84 g (6 mmol) of 2-amino-4-methyl-6-methoxytriazine was suspended in 20 ml of dry tetrahydrofuran, and 0.85 g (6 mmol) of chlorosulfonyl isocyanate was dropwise added thereto at room temperature. A heat was generated mildly, and the reaction mixture turned to a pale yellow solution. Then, 1.64 g (6 mmol) of 2-imino-3-(3-chloroallyloxy)thiazolidine hydrobromide and 1.43 g (14 mmol) of triethylamine suspended in 15 ml of dry tetrahydrofuran were gradually added thereto, and the mixture was further stirred at room temperature for 30 minutes. The solvent was distilled off under reduced pressure, and then water was added to the obtained residue. The resulting oily substance was extracted three times with 80 ml of chloroform. The extract solution was washed once with 100 ml of water and dried over anhydrous sodium sulfate. Then, the solvent was distilled off under reduced pressure. Obtained crystals were washed with ethyl ether and acetonitrile to obtain 1.2 g of desired 1-[3-(3-chloroallyloxy)thiazolidine-2-sulfonylimino]-3-(4-methyl-6-methoxytriazin-2-yl)urea.

Provenance & Evidence