AT63636B - Process for the preparation of 1,2.4-purpurine-3-carboxylic acid. - Google Patents

Process for the preparation of 1,2.4-purpurine-3-carboxylic acid.

Info

Publication number
AT63636B
AT63636B AT63636DA AT63636B AT 63636 B AT63636 B AT 63636B AT 63636D A AT63636D A AT 63636DA AT 63636 B AT63636 B AT 63636B
Authority
AT
Austria
Prior art keywords
purpurine
preparation
carboxylic acid
carboxylic
acid
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT63636B publication Critical patent/AT63636B/en

Links

AT63636D 1911-12-27 1912-12-14 Process for the preparation of 1,2.4-purpurine-3-carboxylic acid. AT63636B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE63636X 1911-12-27

Publications (1)

Publication Number Publication Date
AT63636B true AT63636B (en) 1914-02-25

Family

ID=5632107

Family Applications (2)

Application Number Title Priority Date Filing Date
AT63636D AT63636B (en) 1911-12-27 1912-12-14 Process for the preparation of 1,2.4-purpurine-3-carboxylic acid.
AT68131D AT68131B (en) 1911-12-27 1913-12-18 Process for the preparation of 1,2.4-purpurine-3-carboxylic acid.

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT68131D AT68131B (en) 1911-12-27 1913-12-18 Process for the preparation of 1,2.4-purpurine-3-carboxylic acid.

Country Status (1)

Country Link
AT (2) AT63636B (en)

Also Published As

Publication number Publication date
AT68131B (en) 1915-03-10

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