Salt-free preparation of cyclobutanone

Details Salt-free preparation of cyclobutanone Salt-free preparation of cyclobutanone

2005-10-25

2005-10-25

Richter, Johann (Department: 1621)

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

Organic compounds

Oxygen containing

C568S342000, C568S361000

Reexamination Certificate

active

06958421

ABSTRACT:
A salt-free process for preparing cyclobutanone, including isomerizing cyclopropylmethanol, preferably in aqueous solution, in the presence of an acidic heterogeneous catalyst to form cyclobutanol and, preferably after extraction and removal of the extractant, dehydrogenating the cyclobutanol over a heterogeneous catalyst.

REFERENCES:
patent: 5905176 (1999-05-01), Liang
patent: 6444096 (2002-09-01), Barnicki et al.
patent: 6476274 (2002-11-01), Knops et al.
patent: 199 10 464 (2000-09-01), None
C. C. Lee, et al., Can. J. Chem., vol. 58, pp. 1075-1079, “Reactions of Cyclopropylcarbinol in Dilute Hydrochloric Acid”, 1980.
M. Krumpolc, et al., Organic Syntheses, vol. 60, pp. 20-25.
J. Salaün, et al., Organic Syntheses, An Annual Publication of Satisfactory Methods for the Preparation of Organic Chemicals, vol. 64, pp. 50-56, 1986.
K. Mori, et al., Journal of the American Chemical Society, vol. 124, No. 39, XP-002255551, pp. 11572-11573, “Controlled Synthesis of Hydroxyapatite-Supported Palladium Complexes as Highly Efficient Heterogeneous Catalysts”, 2002.
A. M.J. Jorna, et al., Reactive & Functional Polymers, vol. 29, XP-002255552, pp. 101-114, “Heterogenization of a Ruthenium Catalyst on Silica and its Application in Alcohol Oxidation and Stilbene Expoxidation”, 1996.
Database Crossfire Beilstein 'Online! Beilstein Institur zur Förderung der Chemischen Wissenschaften, AN: Reaction ID 265578, XP-002255553, 1 page.
M. Dojarenko, Chemische Berichte, vol. 1, part B, XP-009018139, pp. 1536-1553, “Isomere Umwandlungen Cyclischer Verbindungen Unter dem Einfluβ Von Katalysatoren, II.: Dehydratation der Alkohole C5H10O: Zersetzung Von Alkoholen C4H8O mit Al2O3ALS Katalysator1)”, 1927.

Affiliated with

Also associated with

Rating

Salt-free preparation of cyclobutanone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Salt-free preparation of cyclobutanone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Salt-free preparation of cyclobutanone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3459559