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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2226046Generated: October 31, 2026

Trityl chloride → HCID 19004143, compound

https://huagongshe.com/reaction/2226046

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrityl chlorideHCID 6456—
ReactantTriethylamineHCID 8471—
ReactantPiperazineethanolHCID 91308—
SolventDichloromethaneHCID 6344—
ProductHCID 19004143HCID 1900414333.3%

Reaction Steps

To a mixture of 255 mg (1.96 mmol) of (±) 2-(2-hydroxyethyl)piperazine and 1.25 g (4.50 mmol) of triphenylmethyl chloride in 5.0 ml of methylene chloride was added 550 ml (3.95 mmol) of triethylamine in one portion and the mixture was stirred at room temperature overnight under a nitrogen atmosphere. The reaction was diluted with 5 mL of methylene chloride and washed with water (3×5 ml) and the layers separated. The aqueous layer was extracted with 10 mL of methylene chloride. The organic layers were combined and washed with 15 mL of saturated sodium chloride solution, dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo to an orange foam. Flash chromatography on 75 g of silica gel using a gradient elution of 1:9 v/v ethyl acetate/hexane to 1:9 v/v ethanol/ethyl acetate yielded 401 mg (33%) of a foam.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05344830
Source datasetuspto-grants-1994_09
ORD IDord-4b3a227fe2f740118f4861dd8b81ac7c
Source noteuspto-grants-1994_09