Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1996-12-13
1998-04-28
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560190, C07C 6700, C07C 6934
Patent
active
057446377
ABSTRACT:
This invention pertains to accelerating the rate of formation of 1,1-dicarboxylic esters from the reaction of an aldehyde with a carboxylic acid anhydride or a ketene in the presence of a non-iodide containing a strong Bronsted acid catalyst by the addition of a carboxylic acid at about one bar pressure and between about 0.degree. and 80.degree. C. in the substantial absence of a hydrogenation or carbonylation catalyst.
REFERENCES:
patent: 2021698 (1935-11-01), Perkins
patent: 2859241 (1958-11-01), Schnizer
patent: 3383374 (1968-05-01), McTeer
patent: 3700722 (1972-10-01), McTeer
patent: 4337351 (1982-06-01), Larkins, Jr.
patent: 4843170 (1989-06-01), Isshiki et al.
patent: 4978778 (1990-12-01), Isshiki et al.
patent: 5026903 (1991-06-01), Baker
patent: 5117046 (1992-05-01), Paulik et al.
patent: 5227517 (1993-07-01), Waller
"Boron Fluoride Catalyzed Addition of Aliphatic Anhydrides to Aldehydes", J. Am. Chem. Soc., 72, 847-8 (1950), Man et al.
"Catalysis by Solid Superacids; 16. Improved Nafion-H Catalyzed Preparation of 1,1-Diacetates from Aldehydes", Synthesis, 962-3 (1982), Olah et al.
"Diacetates From Aldehydes in the Presence of Zeolites", Synthesis, 1077-8 (1995), Pereira et al.
"Aldehydes via Palladium Catalyzed Reductive Carbonylation of Esters", J. Chem. Soc., Chem. Commun. 337-8 (1987) Graff et al.
Chemical Abstracts, 96:34596w, European Patent Appl. EP 34, 062, 19 Aug. 1981.
Chemical Abstracts, 115:28712a, Ger. Offen, DE 3, 934,860, 25 Apr. 91.
Chemical Abstracts, 110: 7679b, Jpn. Kokai Tokkyo Koho Jp, 63, 101, 348, 06 May 1968.
Dickson Todd Jay
Tustin Gerald Charles
Blake Michael J.
Eastman Chemical Company
Gwinnell Harry J.
Keys Rosalynd
Killos Paul J.
LandOfFree
Carboxylic acid accelerated formation of diesters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carboxylic acid accelerated formation of diesters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carboxylic acid accelerated formation of diesters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1533200