Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur containing
Patent
1989-02-08
1990-08-21
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur containing
568 28, 562828, C07C14706
Patent
active
049507931
ABSTRACT:
An aromatic hydrocarbon represented by the following general formula [I]: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 stand for a hydrogen atom or alkyl group, is reacted with a halogenated sulfonic acid in the presence of a Lewis acid to obtain an aromatic sulfone compound represented by the following general formula [II]: ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined above and Z stands for a halogen atom or an aromatic hydrocarbon group represented by the following general formula [III]: ##STR3## in which R.sub.1, R.sub.2 and R.sub.3 are as defined above.
REFERENCES:
patent: 2781402 (1957-02-01), Chadwick
patent: 3579590 (1971-05-01), Davis
Graybill, Bruce M. "The Synthesis of Aryl Sulfones," Journal of Organic Chemistry, vol. 32, (Sep. 1967), pp. 2931-2933.
Tyobeka, Themba E., et al., "Novel Sulphonylating reagent: Sulphuric Acid-Hexafluoroacetic Anhydride," J. C. S. Chem. Comm., (1980), pp. 114-115.
Sipes, Herbert J., Jr., et al., "An Improved Synthesis of Aryl Sulfones," Synthesis, (Mar. 1984), pp. 283-284.
Ueda, Mitsura, et al., "A New Synthesis of Diaryl Sulfones," Synthesis, (Apr. 1984), pp. 323-325.
Agency of Industrial Science & Technology
Lone Werren B.
LandOfFree
Process for preparation of aromatic sulfone compounds 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 preparation of aromatic sulfone compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of aromatic sulfone compounds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1678910