.beta.-(keto or sulfonyl)esters from reaction of silyketene acet

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525346, 525350, 525353, 5253593, 5253594, 525377, 525386, 526194, 560150, 560174, 560178, C08F 810, C08F 836

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active

051108690

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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