JPS5531072A - Preparation of 2-pyridone compound - Google Patents

Preparation of 2-pyridone compound

Info

Publication number
JPS5531072A
JPS5531072A JP9694579A JP9694579A JPS5531072A JP S5531072 A JPS5531072 A JP S5531072A JP 9694579 A JP9694579 A JP 9694579A JP 9694579 A JP9694579 A JP 9694579A JP S5531072 A JPS5531072 A JP S5531072A
Authority
JP
Japan
Prior art keywords
compound
formula
preparation
triphenylphosphine
reacting
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.)
Granted
Application number
JP9694579A
Other languages
Japanese (ja)
Other versions
JPS5755715B2 (en
Inventor
Kunio Ko
Hiroshi Yamazaki
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.)
RIKEN Institute of Physical and Chemical Research
Original Assignee
RIKEN Institute of Physical and Chemical Research
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
Application filed by RIKEN Institute of Physical and Chemical Research filed Critical RIKEN Institute of Physical and Chemical Research
Priority to JP9694579A priority Critical patent/JPS5531072A/en
Publication of JPS5531072A publication Critical patent/JPS5531072A/en
Publication of JPS5755715B2 publication Critical patent/JPS5755715B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the title substance useful as antiphlogistics, pesticides or their intermediates, in one step, by reacting a triphenylphosphine-π-cyclopentadienylcobaltacyclopentadine derivative with an isocyanate compound.
CONSTITUTION: A compound of formula I (R2, R3, R4, and R5 are H, alkyl, aryl, or alkoxycarbonyl groups, Ph is phenyl group) is reacted with a compound of the formula R1-N=C=O (R1 is H, alkyl, or aryl group) at about 130°C for 1W 2hr to give a compound of formula II. The compound of formula I can be obtained by reacting π-cyclopentadienyl-bis(triphenylphosphine)cobalt with an acetylenic compound.
COPYRIGHT: (C)1980,JPO&Japio
JP9694579A 1979-07-30 1979-07-30 Preparation of 2-pyridone compound Granted JPS5531072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9694579A JPS5531072A (en) 1979-07-30 1979-07-30 Preparation of 2-pyridone compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9694579A JPS5531072A (en) 1979-07-30 1979-07-30 Preparation of 2-pyridone compound

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12357576A Division JPS5350179A (en) 1976-10-15 1976-10-15 Novel 2-pyridone compounds and their preparation

Publications (2)

Publication Number Publication Date
JPS5531072A true JPS5531072A (en) 1980-03-05
JPS5755715B2 JPS5755715B2 (en) 1982-11-25

Family

ID=14178441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9694579A Granted JPS5531072A (en) 1979-07-30 1979-07-30 Preparation of 2-pyridone compound

Country Status (1)

Country Link
JP (1) JPS5531072A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6949571B2 (en) * 2000-06-12 2005-09-27 Eisai Co., Ltd. 1,2-dihydropyridine compounds, process for preparation of the same and use thereof
US7759367B2 (en) 2001-12-06 2010-07-20 Eisai R&D Management Co., Ltd. Pharmaceutical compositions and their uses
US8304548B2 (en) 2004-07-06 2012-11-06 Eisai R&D Management Co., Ltd. Method for producing 1, 2-dihydropyridine-2-one compound

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49100073A (en) * 1973-02-02 1974-09-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49100073A (en) * 1973-02-02 1974-09-20

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6949571B2 (en) * 2000-06-12 2005-09-27 Eisai Co., Ltd. 1,2-dihydropyridine compounds, process for preparation of the same and use thereof
US7563811B2 (en) 2000-06-12 2009-07-21 Eisai R&D Management Co., Ltd. 1,2-dihydropyridine compounds, manufacturing method thereof and use thereof
US7939549B2 (en) 2000-06-12 2011-05-10 Eisai R&D Management Co., Ltd. 1,2-dihydropyridine compounds, manufacturing method thereof and use thereof
US7759367B2 (en) 2001-12-06 2010-07-20 Eisai R&D Management Co., Ltd. Pharmaceutical compositions and their uses
US8304548B2 (en) 2004-07-06 2012-11-06 Eisai R&D Management Co., Ltd. Method for producing 1, 2-dihydropyridine-2-one compound
US8772497B2 (en) 2004-07-06 2014-07-08 Eisai R&D Management Co., Ltd. Method for producing 1, 2-dihydropyridine-2-one compound
US9045426B2 (en) 2004-07-06 2015-06-02 Eisai R&D Management Co., Ltd. Method for producing 1,2-dihydropyridine-2-one compound

Also Published As

Publication number Publication date
JPS5755715B2 (en) 1982-11-25

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