Process for the synthesis of benzothiophenes

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

546202, 548525, 540596, C07D33352, C07D40900, C07D40500

Patent

active

059691573

ABSTRACT:
The instant invention provides improved processes for preparing benzothiophenes utilizing methanesulfonic acid.

REFERENCES:
patent: 4075227 (1978-02-01), Jones et al.
patent: 4133814 (1979-01-01), Jones et al.
patent: 4233333 (1980-11-01), Trummlitz et al.
patent: 4380635 (1983-04-01), Peters
patent: 4418068 (1983-11-01), Jones
patent: 4436748 (1984-03-01), Ong et al.
patent: 4544746 (1985-10-01), Holtje
patent: 5292894 (1994-03-01), Ebel et al.
patent: 5472962 (1995-12-01), Koizumi et al.
patent: 5512684 (1996-04-01), Alt
patent: 5552401 (1996-09-01), Cullinan et al.
patent: 5606075 (1997-02-01), Hoard et al.
patent: 5606076 (1997-02-01), Aikins et al.
patent: 5614639 (1997-03-01), Hauser et al.
patent: 5792870 (1998-08-01), Godfrey
Guy, "Utilization of Polyphosphonic Acid in the Presence of a Co-solvent," Synthesis, 222-223, (Mar., 1985).
Ple,. et al., "Synthesis of Substituted Benzo[b] by Thiophene, [b] Acid-Catalyzed Cyclization of Thiophenyl Acctals and Ketone", J. Heterocyclic Chem., 25, 1271-1272 (1988).
Kost et al., "Isomerization of 3-Substitutal Indoles, Benzo Furens, and Benzo[b] Thiophenes", Translated from Zhurnal Organicheskoi Khimii, vol. 6, No. 7, pp. 1503-1505 (Jul. 1970).
Merck Index, 1983, 10.sup.th Ed. Entry 7453.

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

Rate now

     

Profile ID: LFUS-PAI-O-2057330

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