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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 30258Generated: October 29, 2026

Oxalyl chloride → 1-Benzyl-4-(4-bromo-thiophen-2-yl)-pyrrolidine-3-carbonyl chloride

https://huagongshe.com/reaction/30258

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantHCID 67206869HCID 67206869—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product1-Benzyl-4-(4-bromo-thiophen-2-yl)-pyrrolidine-3-carbonyl chlorideHCID 86229187100%

Reaction Steps

A solution of the product from step c) (4.6 g, 12.6 mmol) in CH2Cl2 (63 ml) was treated with DMF (3-5 drops) and oxalyl chloride (2.4 g, 18.9 mmol) for 2 hours. Next, the solvent was evaporated in vacuo to give 4.04 g (100%) of the subtitle compound that was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07423056B2
Source datasetuspto-grants-2008_09
ORD IDord-f62d7a9f220f47d0a980772f9f1b0335
Source noteuspto-grants-2008_09