C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/280.2, 260/2
C07D 207/448 (2006.01) B01J 27/02 (2006.01) B01J 27/16 (2006.01) B01J 31/02 (2006.01) C07D 207/452 (2006.01) C07D 401/04 (2006.01)
Patent
CA 1319696
ABSTRACT OF THE DISCLOSURE A method for the production of a maleimide by dehydration and ring-closure of maleinamic acid obtained by the reaction of maleic anhydride with an amine, which method is characterized by effecting ring-closure imidation of said maleinamic acid by heating said maleinamic acid in a water-insoluble or water-immiscible inert organic solvent in the presence of a supported catalyst on a solid carrier an acid, an amine salt, or a mixture thereof. - 20 -
547537
Fukui Akio
Kita Yuichi
Nakagawa Kouichi
Nakagawa Yoichi
Sakamoto Kentaro
Nippon Shokubai Kagaku Kogyo Co. Ltd
Sim & Mcburney
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