Organic compounds -- part of the class 532-570 series – Organic compounds – Diazo or diazonium
Reexamination Certificate
2005-11-08
2005-11-08
Powers, Fiona T. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Diazo or diazonium
C534S558000
Reexamination Certificate
active
06962983
ABSTRACT:
A method for the production of diazomethane comprising the steps of a) feeding a base and a diazomethane precursor into a reactor vessel; b) generating gaseous diazomethane by allowing the base and the gaseous diazomethane precursor to react; and c) removing the gaseous diazomethane using a diluent gas.
REFERENCES:
patent: 2675378 (1954-04-01), Fawcett
patent: 5459243 (1995-10-01), Acevedo et al.
patent: 5817778 (1998-10-01), Archibald et al.
patent: 5854405 (1998-12-01), Archibald et al.
patent: 0 916 648 (1999-05-01), None
patent: 0 916 649 (1999-05-01), None
Proctor et al., “Development of a Continuous Process for the Industrial Generation of Diazomethane”, Organic Process Research and Development, 6, 884-892, 2002.
Bernd-Eistert, “Synthesis with Diazomethane”, 513-570, no date provided.
Black, T.H., “The Preparation and Reaction of Diazomethane,” Aldrichimica Acta 16(1) 3-10 (1983).
Chemistry in Industry, Feb. 21, 1994, p. 122/123, Nov. 5, 1990.
De Boer, T.H. J., and Backer, H. J., “A New Method for the Preparation of Diazomethane,” Recueil 73, 229-234 (1954).
Yamaguchi, Masato (Kurita Water Industries, Ltd.), “Preparation of diazomethane ether solution,” Chemical Abstracts, vol. 110, No. 5, Jan. 30, 1989, Columbus, OH, U.S., Abstract No. 38611c.
Ruehle et al., Chemical Abstracts, vol. 91, No. 19, Nov. 5, 1979 Columbus, OH, US, Abstract No. 157184.
Proctor Lee
Warr Antony John
Farah David A.
Phoenix Chemicals Limited
Powers Fiona T.
Sheldon & Mak PC
LandOfFree
Process for the preparation of diazomethane does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of diazomethane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of diazomethane will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3490560