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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236633Generated: October 26, 2026

N,N-Dimethyl-1,3-propanediamine → N-(3-Dimethylaminopropyl)-N'-(3-Triethoxysilylpropyl)Urea

https://huagongshe.com/reaction/236633

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN,N-Dimethyl-1,3-propanediamineHCID 7993—
ReactantTriethoxy(3-isocyanatopropyl)silaneHCID 90613—
ProductN-(3-Dimethylaminopropyl)-N'-(3-Triethoxysilylpropyl)UreaHCID 20216491—

Reaction Steps

To a stirred solution of 3-isocyanatopropyltriethoxysilane (74 g; 0.31 mole) was slowly added 30 g (0.30 mole) of N,N-dimethyl-1,3-propanediamine. There was a significant exotherm. The product was purified by strip distillation at 205° C. (0.1 torr). NMR (CDCl3) 0.40-0.9 (m; 2H), 1.22 (t; 9H), 1.4-1.9 (m; 4H), 2.21 (s; 6H), 2.33 (t; 2H), 2.9-3.4 (m; 4H), 3.81 (q; 6H), 5.8 (b, 2H) ppm. IR (neat film) 3340, 2980, 2940, 1635, 1575, 1105, 1080, 960, 780 cm-1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04645846
Source datasetuspto-grants-1987_02
ORD IDord-4a68e44d4c944bd38f3565ecfbc2d504
Source noteuspto-grants-1987_02