JPS525782A - Preparation of 1-phthalazinone - Google Patents

Preparation of 1-phthalazinone

Info

Publication number
JPS525782A
JPS525782A JP8227675A JP8227675A JPS525782A JP S525782 A JPS525782 A JP S525782A JP 8227675 A JP8227675 A JP 8227675A JP 8227675 A JP8227675 A JP 8227675A JP S525782 A JPS525782 A JP S525782A
Authority
JP
Japan
Prior art keywords
phthalazinone
preparation
dichloro
drugs
synthesis
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
JP8227675A
Other languages
Japanese (ja)
Other versions
JPS5940151B2 (en
Inventor
Tadamitsu Hirayama
Masahiro Kamata
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.)
Daiichi Pharmaceutical Co Ltd
Original Assignee
Daiichi Pharmaceutical Co Ltd
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 Daiichi Pharmaceutical Co Ltd filed Critical Daiichi Pharmaceutical Co Ltd
Priority to JP8227675A priority Critical patent/JPS5940151B2/en
Publication of JPS525782A publication Critical patent/JPS525782A/en
Publication of JPS5940151B2 publication Critical patent/JPS5940151B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: 1-Phthalazinone useful as intermediate for the synthesis of drugs such as antihypertensive agents is prepared from α,α-dichloro-o-toluic acid.
COPYRIGHT: (C)1977,JPO&Japio
JP8227675A 1975-07-03 1975-07-03 Method for producing 1-phthalazinone Expired JPS5940151B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8227675A JPS5940151B2 (en) 1975-07-03 1975-07-03 Method for producing 1-phthalazinone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8227675A JPS5940151B2 (en) 1975-07-03 1975-07-03 Method for producing 1-phthalazinone

Publications (2)

Publication Number Publication Date
JPS525782A true JPS525782A (en) 1977-01-17
JPS5940151B2 JPS5940151B2 (en) 1984-09-28

Family

ID=13769961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8227675A Expired JPS5940151B2 (en) 1975-07-03 1975-07-03 Method for producing 1-phthalazinone

Country Status (1)

Country Link
JP (1) JPS5940151B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025584A (en) * 1983-07-22 1985-02-08 Hitachi Plant Eng & Constr Co Ltd Treatment method for fluorine-containing wastewater
EP1674515A1 (en) 2004-12-27 2006-06-28 Bayer MaterialScience AG Polyurethane molded article and production method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025584A (en) * 1983-07-22 1985-02-08 Hitachi Plant Eng & Constr Co Ltd Treatment method for fluorine-containing wastewater
EP1674515A1 (en) 2004-12-27 2006-06-28 Bayer MaterialScience AG Polyurethane molded article and production method thereof

Also Published As

Publication number Publication date
JPS5940151B2 (en) 1984-09-28

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