Process for the preparation of aryl-diamines

Details Process for the preparation of aryl-diamines Process for the preparation of aryl-diamines

2007-12-07

2009-06-09

Zucker, Paul A (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07544842

ABSTRACT:
A process for forming a N,N′-diaryl-N,N′-di(hydroxyaryl)-aryl-diamine compound includes reacting a halogenated aryl compound with an etherified diarylamine in the presence of a catalyst, then deprotecting the resulting N,N′-diaryl-N,N′-di(alkyl-oxyaryl)-aryl-diamine to form the N,N′-diaryl-N,N′-di(hydroxyaryl)-aryl-diamine.

REFERENCES:
patent: 4588666 (1986-05-01), Stolka et al.
patent: 4935487 (1990-06-01), Yanus et al.
patent: 4983781 (1991-01-01), Desmurs et al.
patent: 2006/0111588 (2006-05-01), Bender et al.
patent: 2007/0100164 (2007-05-01), Coggan et al.
Creason et al, The Journal of Organic Chemistry, Electrochemical and Spectroscopic Studies of Cation Radicals. I. Coupling Rates of 4-Substituted Triphenylaminium Ion, 1972, 37(26), pp. 4440-4445.
Thayumanavan et al, Chemical Materials, Synthesis of Unsymmetrical Triarylamines for Photonic Applications via One-Pot Palladium-Catalyzed Aminations, 1997, 9, pp. 3231-3235.
Litke et al, Angewandte Chemie, International Edition, A convenient and General Method for Pd-Catalyzed Suzuki Cross-Couplings of Aryl Chlorides and Arylboronic Acids, 1998, pp. 3387-3388.
Greene, Protective Groups in Organic Chemistry, 1981, John Wiley & Sons, New York, pp. 14-16.
U.S. Appl. No. 11/940,718, filed Nov. 15, 2007 to Coggan.
U.S. Appl. No. 11/734,593, filed Apr. 12, 2007 to Coggan et al.
U.S. Appl. No. 11/563,931, filed Nov. 28, 2006 to Bender et al.
U.S. Appl. No. 11/563,873, filed Nov. 28, 2006 to Bender et al.
Taillefer et al., “Efficient Iron/Copper Co-Catalyzed Arylation of Nitrogen Nucleophiles,” Angew, Chem. Int. Ed. 2007, 46, pp. 934-936.
Chen et al., “Ni(II)-(σ-Aryl) Complex: A Facile, Efficient Catalyst for Nickel-Catalyzed Carbon-Nitrogen Coupling Reactions,” J. Org. Chem. 2007, 72, pp. 6324-6327.
Harris et al., “One-Pot Synthesis of Unsymmetrical Triarylamines from Aniline Precursors,” J. Org. Chem. 2000, 65, pp. 5327-5333.

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