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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2182635Generated: November 2, 2026

Carbon Dioxide → HCID 86759733, compound

https://huagongshe.com/reaction/2182635

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon DioxideHCID 280—
ReactantWaterHCID 962—
ReactantEthylamineHCID 6341—
Reactant1-HydroxybenzotriazoleHCID 75771—
SolventAcetoneHCID 180—
ProductHCID 86759733HCID 86759733217.1%

Reaction Steps

11.58 g (77.2 mmol) of HOBt are weighed out in a 2-L flask. 1 L of water is added and the flask submerged in an ultrasound bath until dispersion is complete. 6.18 mL (103.1 mmol) of ethylamine are added, maintaining the ultrasonification. The dispersion is seen to dissolve completely. The transparent solution is allowed to stand for 5 minutes at room temperature. It is then frozen in a bath of dry ice and acetone. It is lyophilised. Once well lyophilised the product is withdrawn from the flask and collected in a beaker. The solid is left to dry under vacuum in the presence of KOH for at least 24 hours, to give 15.1 g of the salt of ethylamine/HOBt.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06897289B1
Source datasetuspto-grants-2005_05
ORD IDord-6f5d0b8d3cb541a49f0afb0caffc967e
Source noteuspto-grants-2005_05