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JPS53116376A - Preparation of chromone derivatives - Google Patents

Preparation of chromone derivatives

Info

Publication number
JPS53116376A
JPS53116376A JP2950277A JP2950277A JPS53116376A JP S53116376 A JPS53116376 A JP S53116376A JP 2950277 A JP2950277 A JP 2950277A JP 2950277 A JP2950277 A JP 2950277A JP S53116376 A JPS53116376 A JP S53116376A
Authority
JP
Japan
Prior art keywords
preparation
chromone derivatives
chromone
derivs
derivatives
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
JP2950277A
Other languages
Japanese (ja)
Inventor
Takeshi Kato
Akira Nohara
Tadao Kawarasaki
Yoichi Sawa
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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries 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 Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Priority to JP2950277A priority Critical patent/JPS53116376A/en
Publication of JPS53116376A publication Critical patent/JPS53116376A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To prepare chromone derivs., useful as antiallergics, by condensative cyclization of tetrazolylacetophenone derivs. with formic acid.
COPYRIGHT: (C)1978,JPO&Japio
JP2950277A 1977-03-16 1977-03-16 Preparation of chromone derivatives Pending JPS53116376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2950277A JPS53116376A (en) 1977-03-16 1977-03-16 Preparation of chromone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2950277A JPS53116376A (en) 1977-03-16 1977-03-16 Preparation of chromone derivatives

Publications (1)

Publication Number Publication Date
JPS53116376A true JPS53116376A (en) 1978-10-11

Family

ID=12277848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2950277A Pending JPS53116376A (en) 1977-03-16 1977-03-16 Preparation of chromone derivatives

Country Status (1)

Country Link
JP (1) JPS53116376A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598155A (en) * 1981-11-18 1986-07-01 Ciba-Geigy Corporation 3(5-tetrazolyl)1,4-diaminoanthraquinones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598155A (en) * 1981-11-18 1986-07-01 Ciba-Geigy Corporation 3(5-tetrazolyl)1,4-diaminoanthraquinones

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