Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2011-07-26
2011-07-26
Davis, Brian J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C549S434000
Reexamination Certificate
active
07985872
ABSTRACT:
A method for producing an olefin compound represented by the formula (2):wherein R1and R2are the same or different, and independently represent an alkyl group or the like, with the proviso that R1and R2are not hydrogen atoms at the same time, R3represents an alkyl group or the like, which comprises contacting a palladium catalyst with an α,β-unsaturated aldehyde compound represented by the formula (1):wherein R1, R2and R3are the same as defined above, in the presence of an inorganic base.
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N. Hoffman et al., “Palladium-Catalyzed Decarbonylation of trans-alpha-Substituted Cinnamaldehydes”, J. Org. Chem., 27, (1962), pp. 2687-2689.
Bensadat, Abdelkader et al., Synthesis of diethyl3- (trifluoromethyl) glutamate, Bulletin de la Societe Chimiquede France, (1996), 133 (5), pp. 509-514.
Laurent, A. et al., Synthesis of trifluoromethyl alkenes andalkynes. Trifluoromethyl captodative olefins, TetrahedronLetters, (1991), 32 (26), pp. 3071-3074.
Davis Brian J
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
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