Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Reexamination Certificate
2008-01-30
2010-10-26
Powers, Fiona T (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
C534S886000, C560S155000, C560S158000, C560S169000
Reexamination Certificate
active
07820802
ABSTRACT:
Provided is an industrially safe and useful azodicarboxylic acid bis(2-alkoxyethyl) ester compound that is useful for the Mitsunobu reaction in which it is used in combination with a phosphorus compound to carry out a dehydration condensation reaction, and also useful as an oxidizing agent, and a starting material for various synthetic processes. Also provided are a production intermediate of the above-described compound, and methods for producing these compounds. An azodicarboxylic acid bis(2-alkoxyethyl) ester compound represented by formula (1);wherein A represents an alkyl group having 1 to 10 carbon atoms.
REFERENCES:
patent: 2533189 (1950-12-01), Flory et al.
patent: 2554141 (1951-05-01), Flory et al.
patent: 2903361 (1959-09-01), Marks et al.
patent: 3017406 (1962-01-01), Mehr
patent: 3192196 (1965-06-01), Vidal et al.
patent: 3306862 (1967-02-01), Schack et al.
patent: 3347845 (1967-10-01), Sheppard et al.
patent: 3488342 (1970-01-01), Van Leeuwen et al.
patent: 6153633 (2000-11-01), Ghosh et al.
patent: 2009/0318720 (2009-12-01), Otten
patent: 54-41970 (1979-04-01), None
J. C. Kauer, “Ethyl Azodicarboxylate”, Organic Synthesis Collective, vol. 4, 1963, p. 411-415.
A. P. Dobbs et al., Synthesis of fluorous azodicarboxylates: towards cleaner Mitsunobu reactions, Tetrahedron Letters, 2002, vol. 43, p. 2807-2810.
Zhang Li-Jie et al., Study on Dead-catalyzed H2O2 Oxidations of Potassium Penicillin G, Chinese J. Antibiotics, 2003, vol. 28, No. 7, p. 391-393, 402.
Mitsunobu Oya, The Use of Diethyl Azodicarboxylate and Triphenylphosphine in Synthesis and Transformation of Natural Products, Synthesis, 1981, No. 1, p. 1-28.
Takashi Sugimura et al., “Di-2-methoxyethyl Azodicarboxylate (DMEAD): An Inexpensive and Separation—friendly Alternative Reagent for the Mitsunobu Reaction”, Chemistry Letters, vol. 36, No. 4, Apr. 5, 2007, p. 566-567.
Hagiya Kazutake
Sugimura Takashi
Mots Law PLLC
Motsenbocker Marvin A.
Powers Fiona T
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