Process for the isomerisation of a cyclohexenyl alkyl or...

Details Process for the isomerisation of a cyclohexenyl alkyl or... Process for the isomerisation of a cyclohexenyl alkyl or...

2007-07-31

2007-07-31

Witherspoon, Sikarl A. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C502S150000, C502S326000

Reexamination Certificate

active

11438756

ABSTRACT:
The present invention relates to a process for the carbon-carbon double bond isomerisation of a 2-alkyl-cyclohex-3-enyl alkyl or alkenyl ketone into a mixture comprising the corresponding 2-alkyl-cyclohex-2-enyl ketones and the corresponding 2-alkylene-cyclohexyl ketones, using as catalyst a ruthenium complex obtainable by the reaction of an appropriate ruthenium organometallic precursor and an acid.

REFERENCES:
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patent: 6214763 (2001-04-01), Dobbs et al.
patent: 6313365 (2001-11-01), Hori et al.
patent: 2002/0004615 (2002-01-01), Watanabe et al.
patent: 537 352 (1973-07-01), None
patent: 1 162 190 (2001-12-01), None
Newbound et al. Open and Half-Open Ruthenocenes and Osmocenes. Organometallics, 1990, vol. 9, p. 2962-2972.

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