DK87198C - Process for the preparation of 4-hydroxy-coumarins or 1-thia-4-hydroxy-coumarins. - Google Patents

Process for the preparation of 4-hydroxy-coumarins or 1-thia-4-hydroxy-coumarins.

Info

Publication number
DK87198C
DK87198C DK21757A DK21757A DK87198C DK 87198 C DK87198 C DK 87198C DK 21757 A DK21757 A DK 21757A DK 21757 A DK21757 A DK 21757A DK 87198 C DK87198 C DK 87198C
Authority
DK
Denmark
Prior art keywords
coumarins
hydroxy
thia
preparation
Prior art date
Application number
DK21757A
Other languages
Danish (da)
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Application granted granted Critical
Publication of DK87198C publication Critical patent/DK87198C/en

Links

DK21757A 1956-01-20 1957-01-19 Process for the preparation of 4-hydroxy-coumarins or 1-thia-4-hydroxy-coumarins. DK87198C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH87198X 1956-01-20

Publications (1)

Publication Number Publication Date
DK87198C true DK87198C (en) 1959-04-27

Family

ID=4343937

Family Applications (1)

Application Number Title Priority Date Filing Date
DK21757A DK87198C (en) 1956-01-20 1957-01-19 Process for the preparation of 4-hydroxy-coumarins or 1-thia-4-hydroxy-coumarins.

Country Status (1)

Country Link
DK (1) DK87198C (en)

Similar Documents

Publication Publication Date Title
DK87198C (en) Process for the preparation of 4-hydroxy-coumarins or 1-thia-4-hydroxy-coumarins.
DK87391C (en) Process for the preparation of N-alkyl-alkylpiperidine-α-monocarboxylic acid amides or N-alkyl-alkylpyrrolidine-α-monocarboxylic acid amides.
DK87264C (en) Process for the preparation of novobiocin or dihydronovobiocin.
DK90015C (en) Process for the preparation of 9α-halogen-16α-hydroxy-hydrocortisones or esters thereof.
DK90704C (en) Process for the preparation of dihydrotachysterol2 or dihydrotachysterol3 or esters thereof.
DK104981C (en) Process for the preparation of 3-methanesulfonylphenthiazine.
DK86522C (en) Process for the preparation of 1-amino-2-imidazolidone.
DK86888C (en) Process for the preparation of dl-emetin.
DK87164C (en) Process for the preparation of 4-amino-3-isoxazolidone.
DK87389C (en) Process for the preparation of 2-methyl-6-ethyl-N-diethylaminoacetanilide.
DK88490C (en) Process for the preparation of phenylisothiocyanates.
DK88604C (en) Process for the preparation of dioxopyrazolidines.
DK88640C (en) Process for the preparation of sulfomethylcellulose.
DK88971C (en) Process for the preparation of 3-aryl-3-alkyl-2-pyrrolidones.
DK89873C (en) Process for the preparation of 21-phosphates of 20-keto-21-hydroxysteroids.
DK90433C (en) Process for the preparation of sulfonylurethanes.
DK90434C (en) Process for the preparation of sulfonylurethanes.
DK90567C (en) Process for the preparation of 5-hydroxymethyl-furfural.
DK90705C (en) Process for the preparation of 1-dehydro-testosterones.
DK90797C (en) Process for the preparation of sulfonylurethanes.
DK91016C (en) Process for the preparation of dinitrophenyl-4-pentenoates.
DK91168C (en) Process for the preparation of sulfonylurethanes.
DK93127C (en) Process for the preparation of dihydrose cinnamin.
DK93295C (en) Process for the preparation of sulfanilamidopyridazines.
DK94263C (en) Process for the preparation of 6-demethyltetracycline.