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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 574403Generated: October 30, 2026

Sodium Bicarbonate → 2,3,4,5-tetrahydro-8-methyl-5-phenethyl-1H-pyrido[4,3-b]indole

https://huagongshe.com/reaction/574403

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
Reactant2,2,2-trichloroethyl 3,4-dihydro-8-methyl-5-phenethyl-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 57875901—
CatalystZincHCID 23994—
SolventAcetic AcidHCID 176—
Product2,3,4,5-tetrahydro-8-methyl-5-phenethyl-1H-pyrido[4,3-b]indoleHCID 5787631051.7%

Reaction Conditions

Temperature25 °C

Reaction Steps

A mixture of 2,2,2-trichloroethyl 3,4-dihydro-8-methyl-5-phenethyl-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (100 mg, 0.2 mmol) and Zn dust (120 mg, 1.9 mmol) in acetic acid (1.2 ml) was stirred at 25° C. for 2 h. The reaction mixture was basified with saturated aqueous NaHCO3 and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and evaporated to obtain 30 mg of 2,3,4,5-tetrahydro-8-methyl-5-phenethyl-1H-pyrido[4,3-b]indole after purification on silica gel (230-400 mesh) chromatography eluting with methanol-dichloromethane gradient.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09034880B2
Source datasetuspto-grants-2015_05
ORD IDord-ca88b9a61d5f4f67bf6d5e3180e55c40
Source noteuspto-grants-2015_05