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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 989719Generated: October 30, 2026

Carbonic acid-guanidine (1:1) → HCID 178433375, compound

https://huagongshe.com/reaction/989719

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbonic acid-guanidine (1:1)HCID 286947—
ReactantEthyl 2-(2-cyanoethyl)-3-oxobutanoateHCID 13328085—
SolventPyridineHCID 1049—
ProductHCID 178433375HCID 17843337564.5%

Reaction Steps

A mixture of ethyl 2-(2-cyanoethyl)-3-oxobutanoate (9 g, 49 mmol), guanidine carbonate (5.30 g, 29.4 mmol) and pyridine (49 ml) was kept at 100° C. for 8 hours. The procedure according to pro-treatment of Reference-example 6 was carried out to give the object compound (3.38 g, 38.6%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06458798B1
Source datasetuspto-grants-2002_10
ORD IDord-e4c5fef0109e4f689c2bb48abb33f746
Source noteuspto-grants-2002_10