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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617212Generated: October 30, 2026

Sulfuric Acid → Butyl 4-(3,4-dimethoxyphenyl)-6,7-dimethoxy-2-methylquinoline-3-carboxylate

https://huagongshe.com/reaction/617212

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantButyl acetoacetateHCID 11576—
Reactant2-Amino-4,5,3',4'-tetramethoxybenzophenoneHCID 9926967—
SolventAcetic AcidHCID 176—
ProductButyl 4-(3,4-dimethoxyphenyl)-6,7-dimethoxy-2-methylquinoline-3-carboxylateHCID 2185118353%

Reaction Steps

Conc. sulfuric acid was added to a mixture of 2-amino-4,5,3',4'-tetramethoxybenzophenone, butyl acetoacetate and acetic acid. The resulting mixture was treated according to the same manner as that described in Reference Example 1 to obtain butyl 6,7-dimethoxy-4-(3,4-dimethoxy- phenyl)-2-methylquinoline-3-carboxylate (53%) which was recrystallized from ethyl acetate/hexane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05948782
Source datasetuspto-grants-1999_09
ORD IDord-b28c7f3e854b4831b7b7b7b77478a728
Source noteuspto-grants-1999_09