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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 502957Generated: November 4, 2026

Dimethylformamide → 4-(Thiophen-2-yl)oxane-4-carbonyl chloride

https://huagongshe.com/reaction/502957

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactant4-(Thiophen-2-yl)oxane-4-carboxylic acidHCID 19066254—
SolventDichloromethaneHCID 6344—
Product4-(Thiophen-2-yl)oxane-4-carbonyl chlorideHCID 24229665—

Reaction Steps

4-(2-Thienyl)tetrahydropyran-4-carboxylic acid was reacted with thionyl chloride and a catalytic amount of DMF in methylene chloride under heating to obtain 4-(2-thienyl)tetrahydropyran-4-carbonyl chloride. A THF solution of 4-(2-thienyl)tetrahydropyran-4-carbonyl chloride was added dropwise to a THF solution of hydrazine monohydrate and the whole was reacted at 0° C. to obtain 4-(2-thienyl)tetrahydropyran-4-carbohydrazide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07776897B2
Source datasetuspto-grants-2010_08
ORD IDord-23b80a9997984014b74ec45af4476216
Source noteuspto-grants-2010_08