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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1653725Generated: November 2, 2026

Ethyl trifluoroacetate → 2-(Trifluoromethyl)-1,4,5,6-tetrahydro-5-pyrimidinol

https://huagongshe.com/reaction/1653725

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl trifluoroacetateHCID 9794—
Reactant1,3-Diamino-2-propanolHCID 61157—
SolventO-XyleneHCID 7237—
Product2-(Trifluoromethyl)-1,4,5,6-tetrahydro-5-pyrimidinolHCID 20080428112.5%

Reaction Steps

1,3-Diamino-2-hydroxypropane (10 g, 111 mmol) and ethyltrifluoroacetate (13.5 ml, 114 mmol) were dissolved in xylene (85 ml) and refluxed overnight in a Dean-Stark apparatus. The solvents were evaporated in vacuo to give a dark viscous oil 21 g identified by 300 MHz nmr as product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05403845
Source datasetuspto-grants-1995_04
ORD IDord-1e25e0b043344039885c78ca75d06d3a
Source noteuspto-grants-1995_04