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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 554227Generated: October 28, 2026

Dichloromethane → 1-(1-Isocyanopentane-1-sulfonyl)-4-methylbenzene

https://huagongshe.com/reaction/554227

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantButyl iodideHCID 10962—
ReactantSodium HydroxideHCID 14798—
ReactantTosylmethyl isocyanideHCID 161915—
CatalystTetrabutylammonium IodideHCID 67553—
SolventWaterHCID 962—
Product1-(1-Isocyanopentane-1-sulfonyl)-4-methylbenzeneHCID 4578994686%

Reaction Steps

A mixture of p-toluenesulfonylmethyl isocyanide (9.75 g), tetrabutylammonium iodide (3.69 g), 1-butyl iodide (11.3 mL), dichloromethane (100 mL) and 30% aqueous sodium hydroxide solution (100 mL) was stirred at room temperature for 12 hr. The reaction product was diluted with water (200 mL), and extracted with dichloromethane. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained gum-like residue was extracted 3 times with diethyl ether (100 mL). The extract was concentrated under reduced pressure to give the title compound as a colorless oil (yield 10.8 g, 86%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048909B2
Source datasetuspto-grants-2011_11
ORD IDord-91cdd8401df645859ef2931e19cb2ae1
Source noteuspto-grants-2011_11