JPS5498754A - 3-hydroxy-3-bromomethylphthalide derivative - Google Patents

3-hydroxy-3-bromomethylphthalide derivative

Info

Publication number
JPS5498754A
JPS5498754A JP368078A JP368078A JPS5498754A JP S5498754 A JPS5498754 A JP S5498754A JP 368078 A JP368078 A JP 368078A JP 368078 A JP368078 A JP 368078A JP S5498754 A JPS5498754 A JP S5498754A
Authority
JP
Japan
Prior art keywords
hydroxy
ethoxycarbonyl
formula
bromomethylphthalide
derivative
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.)
Pending
Application number
JP368078A
Other languages
Japanese (ja)
Inventor
Soyao Moriguchi
Hirokazu Iwasaki
Sumio Soya
Katsuhiko Goto
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP368078A priority Critical patent/JPS5498754A/en
Publication of JPS5498754A publication Critical patent/JPS5498754A/en
Pending legal-status Critical Current

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Abstract

NEW MATERIAL:3-Hydroxy-3-bromomethyl-6-ethoxycarbonyl-5,7-dimethylphthalide of formula I.
USE: An intermediate of 7-ethoxycarbonyl-4-hydroxymethyl-6,8-dimethyl-1-phthalazone that is effective in the prevention of arteriosclerosis and thrombosis.
PREPARATION: The reaction of 6-ethoxycarbonyl-3-hydroxy-3,5,7-trimethylphthalide of formula II with bromine is effected in a slovent as acetic acid under refluxing with heat to produce the objective compound of formula I. The addition of water into the reaction medium in an amount of from a trace to about 20% is required to produce the product in high hield.
COPYRIGHT: (C)1979,JPO&Japio
JP368078A 1978-01-19 1978-01-19 3-hydroxy-3-bromomethylphthalide derivative Pending JPS5498754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP368078A JPS5498754A (en) 1978-01-19 1978-01-19 3-hydroxy-3-bromomethylphthalide derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP368078A JPS5498754A (en) 1978-01-19 1978-01-19 3-hydroxy-3-bromomethylphthalide derivative

Publications (1)

Publication Number Publication Date
JPS5498754A true JPS5498754A (en) 1979-08-03

Family

ID=11564113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP368078A Pending JPS5498754A (en) 1978-01-19 1978-01-19 3-hydroxy-3-bromomethylphthalide derivative

Country Status (1)

Country Link
JP (1) JPS5498754A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007284892A (en) * 2006-04-13 2007-11-01 Richell Corp Traffic regulation gate equipment
US7568449B2 (en) 2004-11-24 2009-08-04 Richell U.S.A., Inc. Freestanding pet barrier
US8528257B2 (en) 2011-03-04 2013-09-10 Richell Corporation Convertible pet barrier with a connection member

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7568449B2 (en) 2004-11-24 2009-08-04 Richell U.S.A., Inc. Freestanding pet barrier
US7954456B2 (en) 2004-11-24 2011-06-07 Richell U.S.A., Inc. Freestanding pet barrier
US8230816B2 (en) 2004-11-24 2012-07-31 Richell U.S.A., Inc. Freestanding pet barrier
JP2007284892A (en) * 2006-04-13 2007-11-01 Richell Corp Traffic regulation gate equipment
US8528257B2 (en) 2011-03-04 2013-09-10 Richell Corporation Convertible pet barrier with a connection member

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