Sulfuryl chloride → 2-Chloro-5-(chloromethyl)-1,3-thiazole--hydrogen chloride (1/1)

Temperature

25 °C

To a solution of 45 g of 3-chloroprop-1-enyl isothiocyanate in 90 ml of 1,2-dichloroethane, 50.5 g of sulphuryl chloride was added over 10 hours at -10° C. The reaction mixture was allowed to warm to 25° C. overnight, to complete the reaction. The solution was cooled to -15° C. and the product, a pale yellow solid, was isolated by filtration and washed with hexane. 38.2 g of 2-chloro-5-(chloromethyl) thiazole hydrochloride was thus obtained, having a melting point of 59°-61° C. and being a yield of 61.6%.

1. customthe reaction
2. temperatureThe solution was cooled to -15° C.
3. customthe product, a pale yellow solid, was isolated by filtration
4. washwashed with hexane

ORD record

ord-896c39ed1fdd4775a7cc875d55948e95

Source dataset

uspto-grants-1998_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05705652