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ES404875A1 - PROCEDURE FOR THE PRODUCTION OF 5-PHENYL-1, 3, 4, 4A, 5,9B-HEXAHYDRO-2H-INDENE (1,2-C) PYRIDINES. - Google Patents

PROCEDURE FOR THE PRODUCTION OF 5-PHENYL-1, 3, 4, 4A, 5,9B-HEXAHYDRO-2H-INDENE (1,2-C) PYRIDINES.

Info

Publication number
ES404875A1
ES404875A1 ES404875A ES404875A ES404875A1 ES 404875 A1 ES404875 A1 ES 404875A1 ES 404875 A ES404875 A ES 404875A ES 404875 A ES404875 A ES 404875A ES 404875 A1 ES404875 A1 ES 404875A1
Authority
ES
Spain
Prior art keywords
hydrogen atoms
trans
pyridines
indene
hexahydro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES404875A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandoz AG
Original Assignee
Sandoz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH525869A external-priority patent/CH513864A/en
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of ES404875A1 publication Critical patent/ES404875A1/en
Expired legal-status Critical Current

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  • Pyridine Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Process for the production of 5-phenyl-1,3,4,4a, 5,9b-hexahydro-2H-indene [1,2-c] pyridines, of general formula Ic, **(See formula)** wherein R1II signifies hydrogen, a lower alkyl or alkenyl radical, and R2 signifies chlorine, bromine, fluorine, or a lower alkyl radical, characterized in that a compound of formula IIId is cyclized. **(See formula)** wherein R1II and R2 have the above meanings, with polyphosphoric acid, and, if desired, mixtures of compounds are separated where the 4a/5 hydrogen atoms are trans and the 4a/9b hydrogen atoms are trans and wherein the 4a/5 hydrogen atoms are trans and the 4a/9b hydrogen atoms are cis in order to isolate one isomer or each of the isomers. (Machine-translation by Google Translate, not legally binding)
ES404875A 1969-04-08 1972-07-14 PROCEDURE FOR THE PRODUCTION OF 5-PHENYL-1, 3, 4, 4A, 5,9B-HEXAHYDRO-2H-INDENE (1,2-C) PYRIDINES. Expired ES404875A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH525869A CH513864A (en) 1969-04-08 1969-04-08 New heterocyclic antiphlogistic compounds
CH889169 1969-06-11
CH1361069 1969-09-09

Publications (1)

Publication Number Publication Date
ES404875A1 true ES404875A1 (en) 1976-01-01

Family

ID=27175150

Family Applications (1)

Application Number Title Priority Date Filing Date
ES404875A Expired ES404875A1 (en) 1969-04-08 1972-07-14 PROCEDURE FOR THE PRODUCTION OF 5-PHENYL-1, 3, 4, 4A, 5,9B-HEXAHYDRO-2H-INDENE (1,2-C) PYRIDINES.

Country Status (1)

Country Link
ES (1) ES404875A1 (en)

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