Thermosetting resins derived from 4-hydroxy- and 4-trimethylsilo

Details Thermosetting resins derived from 4-hydroxy- and 4-trimethylsilo Thermosetting resins derived from 4-hydroxy- and 4-trimethylsilo

1996-02-12

1997-09-23

Shaver, Paul F.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

568 33, 568312, 568315, 568327, C07D26362

Patent

active

056706510

ABSTRACT:
Benzocyclobutene-terminated monomers of the formula ##STR1## wherein Ar is --SO.sub.2 --, --CO--, or ##STR2## are prepared by reacting a benzocyclobutene of the formula ##STR3## wherein R is --H or --SiMe.sub.3, with a difluorophenyl compound of the formula ##STR4## wherein Ar is as described previously, in the presence of a promoter. A mixture of the resins is obtained when potassium carbonate is employed as the promoter. The bis(benzocyclobutene)-terminated monomer is obtained when cesium fluoride is employed as the promoter.

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