B-(keto or sulfonyl) esters from reaction of silylketene acetal

Details B-(keto or sulfonyl) esters from reaction of silylketene acetal B-(keto or sulfonyl) esters from reaction of silylketene acetal

1992-02-03

1993-11-09

Sellers, Robert E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525286, 525299, 525303, 525308, 525309, 5253593, 5253594, 525346, 525350, 525353, 525377, 525386, 526194, 560145, 560150, 560174, 560176, 560178, C08F 810, C08F 836

Patent

active

052604241

ABSTRACT:
Silylketene acetals, including "living" GTP polymers, are acylated or sulfonylated in the presence of GTP-effective catalysts with acyl or sulfonyl compounds to produce .beta.-ketoesters or .beta.-sulfonylesters; polymeric products, including capped, coupled and chain-extended polymers and block copolymers can be prepared.

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