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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092321Generated: October 30, 2026

Aminoacetaldehyde dimethyl acetal → HCID 178495904, compound

https://huagongshe.com/reaction/2092321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAminoacetaldehyde dimethyl acetalHCID 89728—
Reactant4-Bromo-5-methylthiophene-2-carbaldehydeHCID 15538212—
SolventWaterHCID 962—
ProductHCID 178495904HCID 178495904—

Reaction Conditions

Temperature120 °C

Reaction Steps

4-bromo-5-methylthiophene-2-carbaldehyde (11.00 g, 53 6 mmol) was treated with 2,2-dimethoxyethanamine (17.5 ml, 161 mmol) and the mixture stirred at 120° C. for 12 hours. The reaction was poured into water (50 ml) and stirred for 1 hour and extracted with ethyl acetate. The organic layer was washed (2×) with an aqueous saturated solution of sodium bicarbonate, then with water and then brine. The organic layer was then dried with sodium sulfate, concentrated under reduced pressure and placed under a vacuum line to give (E)-N-((4-bromo-5-methylthiophen-2-yl)methylene)-2,2-dimethoxyethanamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440674B2
Source datasetuspto-grants-2013_05
ORD IDord-7394746f606844649ecc2424ba5762ac
Source noteuspto-grants-2013_05