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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1419709Generated: October 26, 2026

Tetrahydrofuran → HCID 53871027, compound

https://huagongshe.com/reaction/1419709

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantAmmonium ChlorideHCID 25517—
Reactant2,4-Dichloro-6-fluoro-1,3-benzothiazoleHCID 53440570—
ReactantHCID 178418332HCID 178418332—
CatalystHCID 178418751HCID 178418751—
SolventDiethyl EtherHCID 3283—
ProductHCID 53871027HCID 5387102749.6%

Reaction Steps

67 ml of a solution of methyl magnesium chloride in tetrahydrofuran (3M; 0.2 mol) were added dropwise to a solution of 22 g (0.1 mol) of 2,4-dichloro-6-fluorobenzothiazole and 3.3 g (5 mmol) of dichlorobis(triphenylphosphine)nickel in 100 ml of diethyl ether. After stirring had been carried out for 2 hours, the mixture was poured onto saturated aqueous ammonium chloride solution. The desired product was extracted with diethyl ether, after which the combined organic phases were washed with water, dried over magnesium sulfate and finally evaporated down. 10 g of the desired product were obtained by crystallization from petroleum ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05888940
Source datasetuspto-grants-1999_03
ORD IDord-82e7a942b1ef455fb8614a838e5d0e60
Source noteuspto-grants-1999_03