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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1759139Generated: November 3, 2026

Methane → HCID 20532148, compound

https://huagongshe.com/reaction/1759139

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
ReactantIsopropylamineHCID 6363—
ReactantHCID 13068374HCID 13068374—
ReactantTrimethylaluminumHCID 16682925—
SolventTolueneHCID 1140—
SolventDichloromethaneHCID 6344—
SolventHexaneHCID 8058—
ProductHCID 20532148HCID 20532148—

Reaction Steps

To 21.2 ml of 25% trimethylaluminum in hexane (2.36 molar) under nitrogen is added 2.9 g of isopropyl amine in 100 ml of dried methylene chloride. The mixture is stirred at ambient temperature until evolution of methane gas ceases and then 19.5 g of methyl 2[[(6,7-dihydro-4-methyl-5H-cyclopentapyrimidin-2-yl)aminocarbonyl]aminosulfonyl]benzoate and 200 ml of dry toluene is added. The resulting mixture is heated to distill off the methylene chloride and hexane, after which heating is continued at the reflux temperature of toluene. After 2 hours, the toluene is removed in vacuo, and 200 ml of methylene chloride and 100 ml of 10% hydrochloric acid are added. The phases are separated, and the methylene chloride phase is washed once with water, dried over magnesium sulfate, and filtered, and the methylene chloride distilled to yield the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04339267
Source datasetuspto-grants-1982_07
ORD IDord-d199d41913e34a3181422763a2f011a3
Source noteuspto-grants-1982_07