1,4-O-metallation process

Details 1,4-O-metallation process 1,4-O-metallation process

1991-06-03

1994-07-26

Shaver, Paul F.

Perfume compositions

Perfume compositions

Ring containing active ingredient

512413, 512415, 512443, 512444, 556495, 549215, C07F 708, C07F 710, C07F 718

Patent

active

053328523

ABSTRACT:
This invention resides in a process for production of predominantly a 1,4-O-metallation product of a hydride of silicon, germanium, or tin with an .alpha.,.beta.-unsaturated carbonyl compound. The reaction involved takes place in the presence of a heterogeneous noncomplexed rhodium-containing catalyst. This invention also resides in 1,4-O-metallation compositions having perfluoroalkyl R groups on either side of the C.dbd.C bond of an enol ether or on the acetal side of the C.dbd.C bond of a ketene acetal.

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