Perfume compositions – Perfume compositions – Ring containing active ingredient
Patent
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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E. I. Du Pont de Nemours and Company
Feeny Charles E.
Shaver Paul F.
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