SYNTHESIS OF SILYL KETENE ACETAL FROM ALLYL 2-ORGANOACRYLATES

摘要

SYNTHESIS OF SILYL KETENE ACETAL FROM ALLYL 2-ORGANOACRYLATESABSTRACTA process is described for preparing silyl keteneacetals having the formula,(CH3)RC=C(OSiRi3)2 ,from allyl 2-organoacrylates. The process comprisescontacting an allyl 2-organoacrylate with a trisubstitutedsilane in the presence of a rhodium catalyst; and separatingand isolating the silyl ketene acetal. Silyl ketene acetalof greater than 85-90 percent purity can be recovered.