Thallium catalyzed multidimensional ester oligomers

Details Thallium catalyzed multidimensional ester oligomers Thallium catalyzed multidimensional ester oligomers

1995-06-05

1997-04-08

Mullis, Jeffrey C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528296, 560 76, 560 82, 560 85, 560 86, 560 88, C08G 6300, C08G 6368

Patent

active

056189079

ABSTRACT:
The yield of fully substituted, multidimensional aromatic hubs in the condensation of hydroxyl and acid halide functionalities is improved by adding a thallium catalyst, such as thallium ethoxide (Tl--OC.sub.2 H.sub.5), in the solvent.

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