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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 918498Generated: October 27, 2026

1,3-Cyclohexanedione → 2-Amino-4-(isoquinol-1-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/918498

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-CyclohexanedioneHCID 10434—
ReactantIsoquinoline-1-carbaldehydeHCID 265306—
ReactantCarbamimidoyl-acetic acid ethyl esterHCID 4599837—
SolventEthanolHCID 702—
Product2-Amino-4-(isoquinol-1-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl esterHCID 70635123—

Reaction Steps

Upon heating a solution of 6.3 g of isoquinolin-1-aldehyde, 4.5 g of cyclohexane-1,3-dione and 5.2 g of amidinoacetic acid ethyl ester in 100 ml of ethanol for 2 hours, 2-amino-4-(isoquinol-1-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester of melting point 272°C (ethanol) is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03971791
Source datasetuspto-grants-1976_07
ORD IDord-ed740692dfa148abb4a6da1f986f2f5f
Source noteuspto-grants-1976_07