Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 863677Generated: October 30, 2026

HCID 54678585, compound → 7,8-Dihydropyrido[1,2-a]indol-9(6H)-one

https://huagongshe.com/reaction/863677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 54678585HCID 54678585—
SolventHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
SolventWaterHCID 962—
Product7,8-Dihydropyrido[1,2-a]indol-9(6H)-oneHCID 1506339399.8%

Reaction Steps

A solution of 1.03 g of ethyl 6,7-dihydro-9-hydroxypyrido[1,2-a]indole-8-carboxylate in 20 ml of ethanol, 10 ml of water and 10 ml of concentrated hydrochloric acid was heated at 80° C. for 3 hours. The solvents were evaporated to give 740 mg of 7,8-dihydropyrido[1,2-a]indol-9(6H)-one of melting point 138°-140° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05721245
Source datasetuspto-grants-1998_02
ORD IDord-acefca05672f4d9689d62e9a41cede22
Source noteuspto-grants-1998_02