Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1007918Generated: October 30, 2026

Oxalic Acid → N-[2-(2-benzo[b]thiophen-5-ylethoxy)ethyl]-N-benzyl-N-(2-propynyl)amine oxalate

https://huagongshe.com/reaction/1007918

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
ReactantN-[2-(2-benzo[b]thiophen-5-ylethoxy)ethyl]-N-benzyl-N-(2-propynyl)amineHCID 22666539—
SolventEthyl AcetateHCID 8857—
ProductN-[2-(2-benzo[b]thiophen-5-ylethoxy)ethyl]-N-benzyl-N-(2-propynyl)amine oxalateHCID 2266655874.8%

Reaction Steps

In 1 mL of ethyl acetate is dissolved 0.67 g of N-[2-(2-benzo[b]thiophen-5-ylethoxy)ethyl]-N-benzyl-N-(2-propynyl)amine, to which is added 2.3 mL of a solution of 0.26 g of oxalic acid in ethyl acetate. The resulting mixture is stirred at ambient temperature for 2 hours. The deposited crystal is collected by filtration, washed with ethyl acetate and dried to obtain 0.63 g of N-[2-(2-benzo[b]thiophen-5-ylethoxy)ethyl]-N-benzyl-N-(2-propynyl)amine oxalate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06797726B1
Source datasetuspto-grants-2004_09
ORD IDord-74857256949c4694b0fb450daf29f9e7
Source noteuspto-grants-2004_09