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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2163803Generated: November 3, 2026

Chloroacetamide → 10-Hydroxy-5,5-dimethyl-8-(1,2-dimethylheptyl)-1,2,3,4-tetrahydro-5H-[1]benzopyrano[4,3-c]pyridine-2-acetamide

https://huagongshe.com/reaction/2163803

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroacetamideHCID 6580—
ReactantTriethylamineHCID 8471—
Reactant5H-(1)Benzopyrano(4,3-c)pyridine, 1,2,3,4-tetrahydro-5,5-dimethyl-8-(1,2-dimethylheptyl)-10-hydroxy-HCID 213543—
SolventDimethylformamideHCID 6228—
Product10-Hydroxy-5,5-dimethyl-8-(1,2-dimethylheptyl)-1,2,3,4-tetrahydro-5H-[1]benzopyrano[4,3-c]pyridine-2-acetamideHCID 21321138—

Reaction Steps

A solution of 1.03 g (0.011 mole) of 2-chloroacetamide in 8 ml of dimethylformamide was added dropwise to a stirred solution of 3.57 g (0.01 mole) of 10-hydroxy-5,5-dimethyl-8-(1,2-dimethylheptyl)-1,2,3,4-tetrahydro-5 H-[1] benzopyrano [4,3-c] pyridine in 12 ml of dimethylformamide and 1.11 g (0.011 mole) of triethylamine. After stirring for 17 hours, the mixture was diluted with 20 ml. of water and extracted with ether. The combined ether extracts were washed with water, dried over anhydrous sodium sulfate, and evaporated in vacuo. The residue was recrystallized from acetonitrile, m.p. 165-168°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04137232
Source datasetuspto-grants-1979_01
ORD IDord-e5c4fc269516455aa5b712c577953c89
Source noteuspto-grants-1979_01