Triethylamine → HCID 14126789, compound

Participants

Reaction Steps

A solution of methanesulfonyl chloride (6 g) in methylene chloride (50 ml) was added dropwise rapidly to a stirred and cooled (0-5° ) solution of trans-2,3-dihydro-2-hydroxy-(pyrrolidin-1-yl)-1H-indene (5.5 g) and triethylamine (6 ml) in methylene chloride (200 ml). After the addition was complete, the mixture was stirred at room temperature for 3 hours and then evaporated under reduced pressure. The residue was treated with a 33% solution of methylamine in ethanol (100 ml) and the mixture was stirred at reflux for 3 hours and evaporated under reduced pressure. The residue was treated with water and extracted twice with ether. The combined ether extracts were washed successively with 2 N sodium hydroxide solution and water, dried over magnesium sulfate and evaporated under reduced pressure to yield a liquid which was distilled under vacuum to give trans-2,3-dihydro-1-methylamino-2-(pyrrolidin-1-yl)-1H-indene (6.3 g) b.p. 118°-120°/0.25 torr.

Provenance & Evidence