Polycyclic dihydroxy compounds and methods for preparation

Details Polycyclic dihydroxy compounds and methods for preparation Polycyclic dihydroxy compounds and methods for preparation

2007-04-24

2007-04-24

Zucker, Paul A. (Department: 1621)

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

Organic compounds

Carboxylic acid esters

C560S096000

Reexamination Certificate

active

11261720

ABSTRACT:
A dihydroxy aromatic compound having a Formula (I) wherein R1is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and each R3and R4, at each occurrence, can be the same or different and are independently at each occurrence an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons, “n” is an integer having a value 0 to 4 and “m” is an integer having a value 0 to 4.

REFERENCES:
patent: 06-016800 (1994-01-01), None
Rowland, et al. “Saponification of Dimethyl cis-2,6-Diphenyl-4-oxocyclohexane-1, 1-dicarboxylate. A Reinvestigation” J. Org. Chem. vol. 74, 1982, pp. 301-306.
Gomez-Bengoa, et al. “Michael Reaction of Stabilized Carbon Nucleophiles Catalyzed by [RuH2(PPh3)4]” J. Am. Chem. Soc. vol. 118, 1996, pp. 8553-8565.
Dewey, et al. “The Addition Reactions of Certain Pentadienones II. Addition of Malonic Esters” Pentadlenones and Malonic Esters, vol. 46, 1924, pp. 1267-1278.

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