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Showing content from https://patents.google.com/patent/ES399221A1/en below:

ES399221A1 - Preparation of substituted chromenols

ES399221A1 - Preparation of substituted chromenols - Google PatentsPreparation of substituted chromenols Info

Publication number: ES399221A1
Authority: ES; Spain
Prior art keywords: formula; group; preparation; carbon atoms; chromenols
Prior art date: 1971-01-28
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

ES399221A

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.)

Beecham Group PLC

Original Assignee

Beecham Group PLC

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.)

1971-01-28

Filing date

1972-01-26

Publication date

1974-11-16

1972-01-26 Application filed by Beecham Group PLC filed Critical Beecham Group PLC

1974-11-16 Publication of ES399221A1 publication Critical patent/ES399221A1/en

Status Expired legal-status Critical Current

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Plural Heterocyclic Compounds (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

A procedure for the preparation of a chromenol of formula (I): ** (See formula) ** or a salt thereof, where R1 is a hydrocarbon group of 1 to 20 carbon atoms, R2 is a six-membered heterocyclic group with a nitrogen atom in position 4, R3 is an alkyl group of 1 to 6 carbon atoms and Y is a hydrogen atom, a salt ion, or an ester or ether forming group; whose procedure is to react a coumarin of formula (II): ** (See formula) ** with an alkyllithium compound of formula R3Li and then, if desired, substituting group Y for other groups Y by known methods. (Machine-translation by Google Translate, not legally binding)

ES399221A 1971-01-28 1972-01-26 Preparation of substituted chromenols Expired ES399221A1 (en) Applications Claiming Priority (1) Application Number Priority Date Filing Date Title GB335471 1971-01-28 Publications (1) Publication Number Publication Date ES399221A1 true ES399221A1 (en) 1974-11-16 Family ID=9756735 Family Applications (1) Application Number Title Priority Date Filing Date ES399221A Expired ES399221A1 (en) 1971-01-28 1972-01-26 Preparation of substituted chromenols Country Status (4)

1971
- 1971-01-28 GB GB1340531D patent/GB1340531A/en not_active Expired
- 1971-12-30 CA CA131,429A patent/CA981682A/en not_active Expired
1972
- 1972-01-20 CH CH85872A patent/CH577501A5/xx not_active IP Right Cessation
- 1972-01-26 ES ES399221A patent/ES399221A1/en not_active Expired

Also Published As Similar Documents Publication Publication Date Title ES394370A1 (en) 1974-11-16 Pharmacologically active 3-piperazinyl-carbonyloxy-2-pyridyl-isoindolin-1-ones ES451466A1 (en) 1978-07-16 5-thiazole-methane-amines, and their use as antilipolytics ES409461A1 (en) 1976-04-01 Lysergic acid derivatives ES399221A1 (en) 1974-11-16 Preparation of substituted chromenols ES438704A1 (en) 1977-06-01 Ergot peptide alkaloids ES440438A1 (en) 1977-03-01 Procedure for the preparation of new derivatives of fenilbutazona. (Machine-translation by Google Translate, not legally binding) ES441257A1 (en) 1977-07-01 Heterocyclic compounds ES401342A1 (en) 1975-02-16 Pyridine derivatives ES410855A1 (en) 1976-03-01 PROCEDURE FOR OBTAINING BENZOCYCLO-HEPTATIOPHENE DERIVATIVES. ES419739A1 (en) 1976-05-01 2-aryl-amino-imidazoline-2 compounds ES386567A1 (en) 1973-11-16 PROCEDURE FOR OBTAINING PIRIDAZONE DERIVATIVES. ES364980A1 (en) 1971-02-16 A method for preparing new adamantan derivatives. (Machine-translation by Google Translate, not legally binding) ES403910A1 (en) 1975-05-01 Imidazo-4,5-b-pyridine derivatives ES402381A1 (en) 1975-04-01 Substituted benzopyrans and processes for their preparation ES411737A1 (en) 1976-01-01 Heterocyclic triglycidyl compounds and a process for their production ES413044A1 (en) 1976-01-16 Process for the preparation of cyanoalkyl substituted phenothiazi ne derivatives ES358130A1 (en) 1970-04-01 A procedure for the preparation of nitrofurilnitronas. (Machine-translation by Google Translate, not legally binding) ES429691A1 (en) 1976-10-01 Preparation of p-isobutyl hydratropic acid and intermediates therefor ES399151A1 (en) 1976-01-01 Procedure for obtaining 4-piperidone-quetal derivatives, its preparation and its use as stabilizers. (Machine-translation by Google Translate, not legally binding) ES371236A1 (en) 1971-08-16 Procedure for the preparation of new benzofuran derivatives. (Machine-translation by Google Translate, not legally binding) ES379617A1 (en) 1973-01-16 A process for the manufacture of amino acids and derivatives thereof ES453718A1 (en) 1977-12-16 Process for preparing aminoethanols ES450472A1 (en) 1977-08-16 Benzoyl pyrazole 5-acetic acid derivatives useful as uricosurucs ES294963A1 (en) 1964-07-01 A method to produce new derivatives of indolilalcohil guanidine and salts from themselves (Machine-translation by Google Translate, not legally binding) ES434407A1 (en) 1977-03-16 PROCEDURE FOR PREPARING BENZOFURANONE DERIVATIVES.

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