C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/468
C07C 269/04 (2006.01) C07C 271/44 (2006.01)
Patent
CA 1318324
ABSTRACT OF THE DISCLOSURE A method for producing aliphatic O-aryl- urethanes by the reaction of an aliphatic primary amine with an aromatic hydroxyl compound and urea. Ammonia produced as a by-product in the reaction is removed during the reaction so that the ammonia concentration of the reaction solution is maintained at 2 wt% or less.
585272
Aoki Toshiya
Fukuoka Shinsuke
Ishida Hiroshi
Asahi Kasei Kogyo Kabushiki Kaisha
Goudreau Gage Dubuc
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