Process for the preparation of carbazole

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

564433, C07D20984, C07C21100

Patent

active

057602476

ABSTRACT:
Diphenylamine can be dehydrocyclized on noble metal catalysts in the liquid phase at temperatures of 200.degree. to 340.degree. C. The reaction proceeds with a surprisingly high selectivity.

REFERENCES:
patent: 2921942 (1960-01-01), Grotta
patent: 3041349 (1962-06-01), Bearse et al.
Ullmann's Encyclopedia of Industrial Chemistry, 5th Ed., vol. A (1986) pp. 59-60.
Chemical Abstracts, vol. 110, No. 13, Mar. 27, 1989, Columbus, Ohio, US; Abstract No. 114620x, XP002037761, *Zusammendfassung* & Khim. Geterotsikl. Soedin., Bd. 5, 1988, Seiten 617-619, V.A. Tarasevich, et al.
Chemical Abstracts, vol. 101, No. 1, Jul. 2, 1984, Columbus, Ohio, US; Abstract No. 6785k, XP002037762, *Zusammendfassung* & Indian J. Chem., Sect. B, Bd. 22B, No. 12, 1983, Seiten 1191-1193, P.L. Majumder, et al.
Chemical Abstracts, vol. 84, No. 11, Mar. 15, 1976, Columbus, Ohio, US; Abstract No. 74026u, XP002037763, *Zusammendfassung* & Journal of Organic Chemistry, Bd. 40, No. 9, 1975, Easton, US, Seiten 1365-1367, B. Akermark, et al.
Database WPI, Week 9624, Derwent Publications Ltd., London, GB; AN 96-236049, XP002037764 & JP 08 092 213 A (Osaka Gas Co., Ltd.), Apr. 9, 1996, *Zusammenfassung*.
Kirk-Othmer: "Encyclopedia of chemical technology (4th Ed., vol. 2)", 1992, John Wiley and Sons, XP002037760, *Seite 458*.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for the preparation of carbazole 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 carbazole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of carbazole will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1461613

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.