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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2394861Generated: October 28, 2026

Hexachloroethane → HCID 18630045, compound

https://huagongshe.com/reaction/2394861

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHexachloroethaneHCID 6214—
ReactantN,N,N',N'-TetramethylethylenediamineHCID 8037—
ReactantCyclohexaneHCID 8078—
Reactant3-Thiophenecarboxamide,N-ethyl-HCID 15452328—
ReactantCID 53628100HCID 178418400—
SolventTetrahydrofuranHCID 8028—
ProductHCID 18630045HCID 1863004557%

Reaction Conditions

Temperature-78 °C

Reaction Steps

A solution of 1.3M s-BuLi in cyclohexane (44 mL, 57.2 mmol) was added dropwise to a -78° C. cooled solution of N-ethyl-3-thiophenecarboxamide (4.04 g, 26 mmol) and TMEDA (6.65 g, 57.2 mmol) in THF (100 mL). After stirring for 30 min at -78° C., a solution of hexachloroethane (13.54 g, 57.2 mmol) in THF (20 mL) was added dropwise. The resulting reaction mixture was warmed to RT over 1 h, quenched with dilute aq citric acid, and extracted with EtOAc (3×). The combined organic extracts were dried (MgSO4), concentrated, and purified by HPLC with 3:7 EtOAc/hexanes to give 2.8 g of N-ethyl-2-chloro-3-thiophenecarboxamide as a yellow oil, a 57% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05811411
Source datasetuspto-grants-1998_09
ORD IDord-43ad3cfeb71a42d79fce51f54098581e
Source noteuspto-grants-1998_09