5-Nitrobenzofurans

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

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

06984741

ABSTRACT:
The present invention relates to 5-nitrobenzofurans, to a process for preparing 5-nitrobenzofurans, and to 5-nitro-2,3-dihydrobenzofuran-3-ols, to a process for the preparation thereof and to intermediates.

REFERENCES:
patent: 3558667 (1971-01-01), Mooradian
patent: 5854282 (1998-12-01), Mellin
patent: 6297233 (2001-10-01), Stein et al.
patent: 471 609 (1992-02-01), None
patent: 1 116 719 (2001-07-01), None
patent: 54163597 (1979-12-01), None
patent: 2002-255954 (2001-03-01), None
patent: 9846561 (1998-10-01), None
patent: 00/47207 (2000-08-01), None
patent: 01/28974 (2001-04-01), None
Suzuki, T ‘Benzofuran derivatives. II. synthesis of 2,3-dihydrobenzofurans from ethyl 2-acylphenoxyacetates’ CA 105:190808 (1986).
Horaguchi, T et al ‘Benzofuran derivatives. Part 3. the reactivities of the intermediates in benzofuran synthesis’ CA 108:75142 (1988).
P. Cagniant et al, “Chimie Organique—Contribution a L'Etude du Naphto-(2.3-B) Furanne et de son Analogue Selenie Le Naphto-(2.3-B0 Selenophene Naphtho(2,3-B) Furan and its Selenium Analog Naphtho(2,3-B) Selenohone”, Comptes Rendus Hebdomadaires Des Seances de L'Academie des Sciences, Serie C: Sciences Chimiques, Gauthier-Villars. Montreuil, Fr. Bd. 276, Nr. 22, May 28, 1973, Seiten 1629-1631, XP009019118, Beispiel XII, Seite 1629, dritter Absatz (Verbindung (I) mit R=OCH(r2)COOH mit R2=N-Butyl).
Erlenmeyer EH et al: “Zur Kenntnis des 5-Aminocumarons” Helvetica Chimica Acta, Verlag Helvetica Chimica Acta,. Basel, CH, Bd. 31, 1948, Seiten 75-77, XP002009857 ISSN: 0018-019X *Beispiel III* .
Spyroudis et al: “Phenyliodoniophenolates from 1,2-Dihydroxybenzene Derivatives” Tetrahedron, Elsevier Science Publishers, Amsterdam, NL, Bd. 50, Nr. 39, 1994, Seiten 11541-11552, XP002910906 ISSN: 0040-4020 * Beispiel.4* .
L.J. Powers et al.: “Antibacterial Activity of Nitrobenzofuranes” J. Med. Chem., Bd. 4, Nr. 3, 1967, Seiten 441-444, XP002257497.
A. Mooradian et al.: “The Preparation of O-Aryl Oximes and their Conversion to Benzofurnaces” J. Heterocycl. Chem. Bd. 4, Nr. 3, 1967, Seiten 441-444, *Tabelle 2 * .

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

5-Nitrobenzofurans does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with 5-Nitrobenzofurans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 5-Nitrobenzofurans will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3543591

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