ATA782376A - PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS - Google Patents

PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS

Info

Publication number
ATA782376A
ATA782376A AT782376A AT782376A ATA782376A AT A782376 A ATA782376 A AT A782376A AT 782376 A AT782376 A AT 782376A AT 782376 A AT782376 A AT 782376A AT A782376 A ATA782376 A AT A782376A
Authority
AT
Austria
Prior art keywords
benzopyranes
benzopyrano
oxo
carboxy
salts
Prior art date
Application number
AT782376A
Other languages
German (de)
Other versions
AT339300B (en
Original Assignee
Boehringer Sohn Ingelheim
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 DE19742407631 external-priority patent/DE2407631A1/en
Application filed by Boehringer Sohn Ingelheim filed Critical Boehringer Sohn Ingelheim
Priority to AT782376A priority Critical patent/AT339300B/en
Publication of ATA782376A publication Critical patent/ATA782376A/en
Application granted granted Critical
Publication of AT339300B publication Critical patent/AT339300B/en

Links

AT782376A 1974-02-18 1976-10-21 PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS AT339300B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT782376A AT339300B (en) 1974-02-18 1976-10-21 PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19742407631 DE2407631A1 (en) 1974-02-18 1974-02-18 NEW 2-CARBOXY-4-OXO-4H, 6H-ANGULAR CLAMP ON 2 ANGULAR CLAMP TO -BENZOPYRANO-ANGULAR CLAMP ON 3.4-ANGLE CLAMP TO ANGLE CLAMP ON 1 ANGLE CLAMP TO -BENZOPYRANE AND YOUR ESTERS AND SALTS TO I AND PROCEDURE MANUFACTURING
AT43975A AT339298B (en) 1974-02-18 1975-01-21 PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS
AT782376A AT339300B (en) 1974-02-18 1976-10-21 PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS

Publications (2)

Publication Number Publication Date
ATA782376A true ATA782376A (en) 1977-02-15
AT339300B AT339300B (en) 1977-10-10

Family

ID=27146287

Family Applications (1)

Application Number Title Priority Date Filing Date
AT782376A AT339300B (en) 1974-02-18 1976-10-21 PROCESS FOR PREPARING NEW 2-CARBOXY-4-OXO-4H, 6H- (2) -BENZOPYRANO- (3,4-F) - (1) -BENZOPYRANES AND THEIR SALTS

Country Status (1)

Country Link
AT (1) AT339300B (en)

Also Published As

Publication number Publication date
AT339300B (en) 1977-10-10

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