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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 745717Generated: October 31, 2026

Pyrrolidine → 2-Methyl-5-(pyrrolidinocarbonyl)thiazole

https://huagongshe.com/reaction/745717

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
ReactantEthyl 2-methyl-1,3-thiazole-5-carboxylateHCID 12808791—
Product2-Methyl-5-(pyrrolidinocarbonyl)thiazoleHCID 2331172378.6%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 15.42 g (0.0901 mole) of ethyl 2-methyl-5-thiazolecarboxylate and 12 g pyrrolidine was stirred at 120° C. under a nitrogen atmosphere for 36 hours to give 12.91 g of the title compound, m.p. 71-2°C. (78.6% yield with respect to the ester).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04600025
Source datasetuspto-grants-1986_07
ORD IDord-6ecdfc27b4b1403395b47dbf0feb3f54
Source noteuspto-grants-1986_07