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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2184641Generated: October 25, 2026

Dihydrocoumarin → N,N-diethyl-3-(2-hydroxyphenyl)propanamide

https://huagongshe.com/reaction/2184641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDihydrocoumarinHCID 660—
ReactantDiethylamineHCID 8021—
ProductN,N-diethyl-3-(2-hydroxyphenyl)propanamideHCID 45803915113.8%

Reaction Steps

Diethylamine (98.5 g) and dihydrocoumarin (20.0 g) were refluxed for 4 hours. Excess diethylamine was removed in vacuo to leave 34.0 g of N,N-diethyl-3-(2-hydroxyphenyl) propionamide. 1H NMR (CDCl3): 7.26-7.03 (m, 2H), 6.91 (dd, 1H), 6.81 (td, 1H), 3.37 (quartet, 2H), 3.26 (quartet, 2H), 2.95 (m, 2H), 2.71 (m, 2H), 1.10 (quartet, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06399534B2
Source datasetuspto-grants-2002_06
ORD IDord-fa0321f61cef42a89d0c6a5c6af1d9ab
Source noteuspto-grants-2002_06