ES405171A1 - Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarins - Google Patents

Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarins

Info

Publication number
ES405171A1
ES405171A1 ES405171A ES405171A ES405171A1 ES 405171 A1 ES405171 A1 ES 405171A1 ES 405171 A ES405171 A ES 405171A ES 405171 A ES405171 A ES 405171A ES 405171 A1 ES405171 A1 ES 405171A1
Authority
ES
Spain
Prior art keywords
general formula
formula
beta
alkyl
indicated above
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.)
Expired
Application number
ES405171A
Other languages
Spanish (es)
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.)
Grodziskie Zaklady Farmaceutyczne Polfa Przedpan
Original Assignee
Grodziskie Zaklady Farmaceutyczne Polfa Przedpan
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 Grodziskie Zaklady Farmaceutyczne Polfa Przedpan filed Critical Grodziskie Zaklady Farmaceutyczne Polfa Przedpan
Publication of ES405171A1 publication Critical patent/ES405171A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/06Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
    • C07D311/08Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
    • C07D311/16Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrane Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Procedure for the preparation of chambers and their derivatives, particularly 3- (beta-dialkylaminoethyl) -4-alkyl-7-carbetoxymethoxycoumarins, of general formula: **(See formula)** in which R1, R2 and R3 indicate short-chain alkyls with 1-3 carbon atoms, and their hydrohalides, characterized in that the resorcin is reacted with a gamma-butyrolactone derivative of general formula **(See formula)** wherein R1 has the above meaning, and with hydrogen halide in anhydrous medium of a short-chain aliphatic acid and phosphorous acid (PIII), 3- (beta-halogenoethyl) -4-alkyl-7-hydroxycoumarin obtained of formula general: **(See formula)** Where R1 has the meaning indicated above and X indicates a chlorine or bromine atom, it is reacted with ethyl ester of a halogenoacetic acid of general formula X-CH2CH2COOC2H5 where X indicates a chlorine or bromine atom, in acetone in the presence of an alkali metal carbonate and a catalyst, the 3- (beta-halogenoethyl) -4-alkyl-7-carbetoxymethoxycoumarin produced of the general formula: **(See formula)** Where R1 and X have the meaning indicated above, it is reacted with excess dialkylamine of general formula: **(See formula)** in which R2 and R3 have the meaning indicated above, in the presence of a hydrogen halide acceptor in benzene or toluene, then the reaction mixture is washed with water, the solvent is evaporated, the residue is dissolved in ethanol, the solution it is treated with anhydrous zinc chloride, the mixture with the complex compound precipitate is cooled, the precipitate is separated, the complex compound is decomposed by means of an aqueous solution of alkali metal carbonate or ammonia and the liberated product of general formula (1), in which R1, R2 and R3 have the meaning indicated above, is isolated and, if necessary, converted to hydrohalide. (Machine-translation by Google Translate, not legally binding)
ES405171A 1971-07-19 1972-07-12 Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarins Expired ES405171A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL14953171A PL74614B1 (en) 1971-07-19 1971-07-19

Publications (1)

Publication Number Publication Date
ES405171A1 true ES405171A1 (en) 1975-07-01

Family

ID=19955081

Family Applications (1)

Application Number Title Priority Date Filing Date
ES405171A Expired ES405171A1 (en) 1971-07-19 1972-07-12 Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarins

Country Status (6)

Country Link
JP (1) JPS4875577A (en)
DE (1) DE2235428B2 (en)
ES (1) ES405171A1 (en)
GB (1) GB1362337A (en)
PL (1) PL74614B1 (en)
SU (1) SU511008A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1088554B (en) * 1977-11-17 1985-06-10 F I D I A Spa SELLECTIVE PROCEDURE FOR THE PREPARATION OF DERIVATIVES OF 7-INDROSSI CUMARINA

Also Published As

Publication number Publication date
GB1362337A (en) 1974-08-07
DE2235428B2 (en) 1974-01-17
JPS4875577A (en) 1973-10-11
SU511008A3 (en) 1976-04-15
PL74614B1 (en) 1974-12-31
DE2235428A1 (en) 1973-02-15

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