Organic compounds -- part of the class 532-570 series – Organic compounds – Carbonate esters
Patent
1993-07-30
1994-09-20
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbonate esters
549229, 549230, C07C 6996
Patent
active
053490770
ABSTRACT:
A process for producing alkylene carbonates which comprises reacting urea and glycols described by the general formula RCH(OH) CH.sub.2 OH; wherein R represents hydrogen or an alkyl group containing 1 to 4 carbons, using a catalyst containing zinc, magnesium, lead or calcium at reduced pressures. The alkylene carbonates are produced with high yield easily using raw materials which are comparatively inexpensive with a mild reaction that does not involve explosive or hazardous materials.
REFERENCES:
patent: 2773881 (1956-12-01), Dunn et al.
patent: 5003084 (1991-03-01), Su et al.
Chemical Abstracts, vol. 82, No. 23, Jun. 9, 1975, Columbus, Ohio; Sergio Fumasoni et al.
Doya Masaharu
Kanbara Yutaka
Kimizuka Ken-ichi
Ohkawa Takashi
Okamoto Aksushi
Conrad, III Joseph M.
Dees Jos,e G.
Mitsubishi Gas Chemical Company Inc.
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