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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1982445Generated: November 1, 2026

Dimethylformamide → 9H-pyrido[3,4-b]indole-3-carboxaldehyde oxime

https://huagongshe.com/reaction/1982445

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium HydroxideHCID 14797—
ReactantHydroxylamine, N-chloro-HCID 149953—
Reactant9H-pyrido[3,4-b]indole-3-carbaldehydeHCID 12789144—
SolventMethanolHCID 887—
Product9H-pyrido[3,4-b]indole-3-carboxaldehyde oximeHCID 13639927667.3%

Reaction Steps

A solution of 3.1 g of potassium hydroxide in 40 ml of methanol is added to a mixture of 150 ml of dimethylformamide, 6.9 g of beta-carboline-3-carboxaldehyde and 3.1 g of hydroxylamino-hydrochloride. The reaction mixture is allowed to stand at room temperature overnight. After evaporation, 50 ml of water is added. The reaction product is filtered off. 6.9 g of the air-dried product is heated in the steam bath together with 35 ml of 2 propanol and, after cooling, is filtered off. 5 g of beta-carboline-3-carboxaldehyde-oxime with a melting point of 229°-231° C. is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04596808
Source datasetuspto-grants-1986_06
ORD IDord-62a6d00a5fcc4bfdba927214b19cc2bf
Source noteuspto-grants-1986_06