Process for the preparation of aromatic carbonic diesters

Details Process for the preparation of aromatic carbonic diesters Process for the preparation of aromatic carbonic diesters

1991-11-07

1994-10-11

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbonate esters

558260, 558273, 558274, 423610, C07C 6806, C07C 6996

Patent

active

053549236

ABSTRACT:
Carbonic diesters containing at least one aromatic ester group can be prepared from carbonic diesters containing at least one aliphatic ester group by transesterification using a phenol, titanium dioxide having a surface area of at least 20 m.sup.2 /g as determined by the BET method being used as catalyst.

REFERENCES:
patent: 4252737 (1981-02-01), Krimm et al.
patent: 4929764 (1990-05-01), Hargis
patent: 4937062 (1990-06-01), Jordan et al.
patent: 5149856 (1992-09-01), Schon et al.
Abstract of Japanese Patent No. 54-125,617, Oct. 14, 1986.
Tang et al, "Preparation and Properties of Sulfate Zirconia and Titania Catalysts", Hangzhou Daxue Kuebue 14(3), 323-8, CA108(16): 138515b. Abstract & Citation only.

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