Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1029706Generated: October 31, 2026

Dichloromethane → HCID 19900858, compound

https://huagongshe.com/reaction/1029706

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantSodium CarbonateHCID 10340—
ReactantBromineHCID 24408—
ReactantFuran, 2-[(methylthio)methyl]-HCID 518937—
SolventMethanolHCID 887—
ProductHCID 19900858HCID 1990085857%

Reaction Conditions

Temperature-20 °C

Reaction Steps

A mixture of 2-methylthiomethyl furan (23.3 g, 0.182 mole), anhydrous sodium carbonate (32.16 g, 0.303 mole), methylene chloride (40 mL) and absolute methanol (40 mL) was cooled to -20° C. under nitrogen atmosphere. A solution of bromine (24.32 g, 0.152 mole) in 60 mL absolute methanol was added over a period of one hour. The reaction mixture was stirred for another 4 hours and filtered by suction. The filtrate was stirred with anhydrous potassium carbonate (10 g--1 hour) and filtered. The solvents were removed on the rotatory evaporator and methylene chloride (100 mL) was added. The organic solution was dried over anhydrous sodium sulfate, filtered and the solvent was removed on the rotatory evaporator. The residue was distilled under reduced pressure to give 16.51 g (57%) of pure product, bp 66°-68° C. (0.4 mm Hg), nD =1.4860.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05102909
Source datasetuspto-grants-1992_04
ORD IDord-3425b9dd5c794e258fedf736888fdbdb
Source noteuspto-grants-1992_04