Process for preparing alkynecarboxylic acids by oxidation of...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

Reexamination Certificate

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C562S405000, C562S407000, C562S510000, C562S523000, C562S538000, C562S540000, C562S598000, C560S128000, C560S203000, C560S205000, C560S208000

Reexamination Certificate

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10667810

ABSTRACT:
A process for preparing alkynecarboxylic acids includes the oxidation of an alkyne alcohol with a hypohalite in the presence of a nitroxyl compound at a pH of greater than 7 with continual addition of the alkyne alcohol and of the hypohalite to the reaction mixture.

REFERENCES:
patent: 6127573 (2000-10-01), Li et al.
patent: 6498269 (2002-12-01), Merbouh et al.
patent: 6750371 (2004-06-01), Fritz-Langhals et al.
patent: 2004/0063932 (2004-04-01), Zedda et al.
patent: 1103537 (2001-05-01), None
patent: 1336599 (2003-08-01), None
patent: 99/52849 (1999-10-01), None
Azerbaev et al. “Synthesis and reactions of acetylenic . . . ” CA 79:126292 (1973).
RN 2564-83-2.
de Nooy et al. “Selective oxidation ofprimafy alcohols . . . ” CA 123:340678 (1995).
Harbeson et al. “Stereospecific synghesis . . . ” CA 122:133766 (1995).
Brochette et al. “Sonocatalysis of the . . . ” 132:152042 (2000).
Thaburet et al. “TEMPO mediated oxidation . . . ” CA 1334:281053 (2001).
Ullmann's Encyclopedia, 6thEdition, 2001, Electronic Release, “Carboxylic Acids, Aliphatic 5.2”.
Houben-Weyl, vol. V12a, 4thEdition, 1977 “Alkynes”.
Wolf. Chem. Ber. 1954, 87, 668.
Kauten and Schāfer, Tetrahedron, 1982, 38, 3299.
Heilbron, Jones and Sondheimer, J. Chem. Soc. 1949, 606.
T.W. Abbott et al., Org. Synth. Coll. vol. II, 1943, 10.
A.E.J. de Nooy, A.C. Besemer and H.V. Bekkum, Synthesis 1996, 1153.
G. Grigoropoulou et al., Chem. Commun. 2001, 547-548.
P.L. Anelli, C. Biffi, F. Montanari and S. Quici, J. Org. Chem. 1987, 52, 2559.
P. L. Anelli, F. Montanari and S. Quici, Org. Synth., 1990, 69, 212.
M. Zhao et al., J. Org. Chem. 1999, 64, 2564.
Straus et al., Ber. Dtsch. Chem. Ges. 1930, 1868.
Cirriminna et al., Chem. Commun. 2000, 1441.
Bolm et al., Chem. Commun. 1999, 1795.
Bobbitt et al., Chem. Commun. 1996, 2745.
Miyazawa and Endo, J. Molec. Catal. 49, 1988, L31.
M. J. Verhoef et al., “Studies in Surface Science and Catalysis”, vol. 125, p. 465H.
D. Brunel et al., Studies in Surface Science and Catalysis, vol. 125, p. 237H.
Miyazawa and Endo, J. Polymer Sci., Polym. Chem. Ed. 23, 1985, 1527 and 2487.
T. Osa, Chem. Lett. 1988, 1423.
Ullmann's Encyclopedia, 6thEdition, Electronic Release, Chlorine Oxides and Chlorine Oxygen Acids 2-.4.
Ullmann's Encyclopedia, 6thEdition, 2002, Electronic Release, Phase Transfer Catalysis.
Ullmann's Encyclopedia of Industrial Chemistry, vol. B4.

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