Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2011-08-16
2011-08-16
Chandrakumar, Nizal (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C549S329000
Reexamination Certificate
active
07999123
ABSTRACT:
An aldehyde derivative represented by the general formula (2) is reacted with ketene in the presence of a Lewis acid catalyst to produce a novel 2-oxetanone derivative (1), which is then purified to a 2-oxetanone derivative having a high trans-isomer purity, and then converted to a vinyl derivative (3) through decarboxylation reaction.
REFERENCES:
patent: 3373169 (1968-03-01), Cherdron et al.
patent: 5998635 (1999-12-01), Miyano et al.
patent: 0747336 (1996-12-01), None
patent: 47-25065 (1972-07-01), None
patent: 49-61153 (1974-06-01), None
patent: 5-004931 (1993-01-01), None
patent: 9-124521 (1997-05-01), None
Record 1 of 1, Derwent Primary Accession No. 1974-70256V.
Yang et al Journal of Organic Chemistry (1997), 62(1), 4-5.
Article Titled “Studies of the Asymmetric [2+2] Cycloaddition of Silylketenes and Aldehydes Emplying Ti-TADDOL Catalysts” jointly authored by Yang et al., in Tetrahedron Letters, 39,1998, (pp. 2877-2880).
Article Titled “Cinchona Alkaloid-Lewis Acid Catalyst Systems for Enantioselective Ketene-Aldehyde Cycloadditions” jointly authored by Zhu et al., in J.Am.Chem.Soc., 126, Apr. 13, 2004, pp. 5352-5353.
Article Titled “Sequential Acyl Halide-Aldehyde Cyclocondensation and Enzymatic Resolution as a Route to Enantiomerically Enriched β-Lactones” jointly authored by Nelson et al., in J.Org.Chem, 65, 2000, (pp. 1227-1230).
Article Titled “Catalytic Asymmetric Acyl Halide-Aldehyde Cyclocondensations. A Strategy for Enantioselective Catalyzed Cross Aldol Reactions” jointly authored by Nelson, et al., in J.Am.Chem.Soc., 121, Apr. 10, 1999,(pp. 9742-9743).
Article Titled “Studies of the Tandem Mukaiyama Aldol-Lactonization (TMAL) Reaction: A Concise and Highly Diastereoselective Route to β-Lactones Applied to the Total Synthesis of the Potent Pancreatic Lipase Inhibitor, (-)-Panclicin D” jointly authored by Yang et al., in Tetrahedron, vol. 53, No. 48,1997,(pp. 16471-16488).
Article Titled “Synthesis and Intramolecular Ring Cleavage of 2-Oxetanones” jointly authored by Mead et al., in Tetrahedron Letters, vol. 29, No. 50,1988, (pp. 6573-6576).
Article Titled “Synthesis of Some Propiolactones with Aromatic Substituents in Position 3” jointly authored by FOMINA et al., in Chemical Abstracts, vol. 76, 1972, (p. 429).
Article Titled “Structural and Solvent Effects on the Mechanism of the Thermal Decarboxylation of 2-Oxetanones. A Limiting Case between Concerted and Stepwise Pathways in Pericyclic Reactions” jointly authored by Morao et al., in J.Am.Chem.Soc.,119,1997, (pp. 816-825).
Article Titled “Theoretical Study on the Mechanism of the Thermal Decarboxylation of 2-Oxetanones” jointly authored by Minato et al., in J.Org.Chem., 48, 1983, (pp. 1479-1483).
Article Titled “Studies in Spiroketal Synthesis 2. A Tandem Cyclization Route to the 1,7-Dioxaspiro[5.5] undecane Ring System” jointly authored by Mead et al., in Synlette, Nov. 1996,(pp. 1065-1066).
Hong Woon Yang et al., “Studies of the asymmetric [2+2] cycloaddition of silylketenes and aldehydes employing Ti-TADDOL catalysts” Tetrahedron Letters, vol. 39, No. 19, pp. 2877-2880, Dec. 31, 1998.
Keith T. Mead et al., “Synthesis and intramolecular ring cleavage of 2-oxetanones” Tetrahedron Letters, vol. 29, No. 50, pp. 6573-6576, Dec. 31, 1988.
Ana Arrieta et al., “Structural and solvent effects on the mechanism of the thermal decarboxylation of 2-oxetanones. A limiting case between concerted and stepwise pathways in pericyclic reactions” J. Am. Chem. Soc. vol. 119, No. 4, pp. 816-825, Dec. 31, 1997.
Kodaki Keiichi
Matsui Shuichi
Nishibata Ryousuke
Oshima Shunji
Takeuchi Hiroyuki
Chandrakumar Nizal
Chisso Petrochemical Corporation
J.C. Patents
JNC Corporation
LandOfFree
2-oxetanone derivative and process for production thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with 2-oxetanone derivative and process for production thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 2-oxetanone derivative and process for production thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2733395