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Showing content from https://patents.google.com/patent/ES394980A1/en below:

ES394980A1 - Substituted benzopyrans and their preparation

ES394980A1 - Substituted benzopyrans and their preparation - Google PatentsSubstituted benzopyrans and their preparation Info

Publication number: ES394980A1
Authority: ES; Spain
Prior art keywords: preparation; carbon atoms; general formula; benzopyrans; aliphatic group
Prior art date: 1970-09-14
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

ES394980A

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.)

1970-09-14

Filing date

1971-09-10

Publication date

1974-12-01

1971-09-10 Application filed by Beecham Group PLC filed Critical Beecham Group PLC

1974-12-01 Publication of ES394980A1 publication Critical patent/ES394980A1/en

Status Expired legal-status Critical Current

Links

150000001562 benzopyrans Chemical class 0.000 title abstract 2
125000001931 aliphatic group Chemical group 0.000 abstract 2
125000004432 carbon atom Chemical group C* 0.000 abstract 2
238000000034 method Methods 0.000 abstract 2
150000003839 salts Chemical class 0.000 abstract 2
150000001204 N-oxides Chemical class 0.000 abstract 1
239000002253 acid Substances 0.000 abstract 1
150000001450 anions Chemical class 0.000 abstract 1
150000001875 compounds Chemical class 0.000 abstract 1
125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1

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 new benzopyrans of general formula (II) ** (See formula) ** (where R1 is a lower aliphatic group; R2 is an aliphatic group of 1 to 20 carbon atoms; R3 is an optionally substituted hydrocarbon group of 1 to 20 carbon atoms; and X is a hydroxyl group or an etherified, esterified or salified thereof) and the N-oxides, acid addition salts and quaternary salts thereof, the process comprising the reduction with a borohydride of a compound of general formula (III) ** (See formula) ** where B- is an anion. (Machine-translation by Google Translate, not legally binding)

ES394980A 1970-09-14 1971-09-10 Substituted benzopyrans and their preparation Expired ES394980A1 (en) Applications Claiming Priority (1) Application Number Priority Date Filing Date Title US7221770A 1970-09-14 1970-09-14 Publications (1) Publication Number Publication Date ES394980A1 true ES394980A1 (en) 1974-12-01 Family ID=22106286 Family Applications (1) Application Number Title Priority Date Filing Date ES394980A Expired ES394980A1 (en) 1970-09-14 1971-09-10 Substituted benzopyrans and their preparation Country Status (14) Families Citing this family (3) * Cited by examiner, â Cited by third party Publication number Priority date Publication date Assignee Title US3960880A (en) * 1974-03-26 1976-06-01 Beecham Group Limited Tetrahydropyrid-4-yl-chroman-5-ol derivatives JPS4995978A (en) * 1973-01-24 1974-09-11 GB1417745A (en) * 1973-07-07 1975-12-17 Beecham Group Ltd Chromene compounds

1971
- 1971-09-09 ZA ZA716039A patent/ZA716039B/en unknown
- 1971-09-09 GB GB4206671A patent/GB1360009A/en not_active Expired
- 1971-09-10 AT AT787271A patent/AT308108B/en not_active IP Right Cessation
- 1971-09-10 DE DE19712145320 patent/DE2145320A1/en active Pending
- 1971-09-10 SE SE7111539A patent/SE372943B/xx unknown
- 1971-09-10 ES ES394980A patent/ES394980A1/en not_active Expired
- 1971-09-10 CA CA122,575A patent/CA965421A/en not_active Expired
- 1971-09-10 NO NO3374/71A patent/NO134743C/no unknown
- 1971-09-10 DK DK446771AA patent/DK135994B/en unknown
- 1971-09-10 BE BE772492A patent/BE772492A/en unknown
- 1971-09-10 CH CH1332671A patent/CH559209A5/xx not_active IP Right Cessation
- 1971-09-10 FR FR7132675A patent/FR2106490B1/fr not_active Expired
- 1971-09-10 IE IE1154/71A patent/IE35636B1/en unknown
- 1971-09-10 NL NL7112521A patent/NL7112521A/xx not_active Application Discontinuation

Also Published As Similar Documents Publication Publication Date Title ES387016A1 (en) 1976-05-01 Isoquinoline derivatives ES394980A1 (en) 1974-12-01 Substituted benzopyrans and their preparation ES451466A1 (en) 1978-07-16 5-thiazole-methane-amines, and their use as antilipolytics ES391993A1 (en) 1973-06-16 Basically substituted alkyl theophyllines ES394971A1 (en) 1974-09-01 3-lower alkyl-5-(o-(omega-amino-alkoxy)-phenoxymethyl)-isoxazoles and salts thereof ES429020A1 (en) 1976-08-16 Certain 2-alkyl-5-oxymethylthiazoles ES412047A1 (en) 1976-01-01 Preparation of dihydrocoumarin and of alkyl derivatives thereof ES364980A1 (en) 1971-02-16 A method for preparing new adamantan derivatives. (Machine-translation by Google Translate, not legally binding) ES321806A1 (en) 1967-01-16 Procedure for the synthesis of new derivatives of 1, 2,3,6-tetrahidropiridina. (Machine-translation by Google Translate, not legally binding) ES401342A1 (en) 1975-02-16 Pyridine derivatives ES307709A1 (en) 1965-12-16 PROCEDURE FOR THE PREPARATION OF MORPHINAN DERIVATIVES. ES385062A1 (en) 1973-03-16 Derivatives of 1-amino-3-phenoxy-propan-2-ol, and processes for preparing them ES392355A1 (en) 1974-08-01 D-homosteroid imides and a process for the preparation thereof ES310048A1 (en) 1965-12-01 Procedure for the preparation of new derivatives of indolpoliciclicos. (Machine-translation by Google Translate, not legally binding) ES442051A1 (en) 1977-04-01 Aminoglycosides ES320857A1 (en) 1966-09-01 A procedure for the production of fenantren derivatives. (Machine-translation by Google Translate, not legally binding) ES402382A1 (en) 1975-04-01 Substituted benzopyrans and processes for their preparation ES379617A1 (en) 1973-01-16 A process for the manufacture of amino acids and derivatives thereof ES402648A1 (en) 1975-03-16 Hydroxycrotonic acid derivatives ES394979A1 (en) 1974-03-16 A procedure for the preparation of substitute benzopyranes. (Machine-translation by Google Translate, not legally binding) ES382147A1 (en) 1973-04-16 A procedure for preparing N-substituted morpholine compounds. (Machine-translation by Google Translate, not legally binding) ES306673A1 (en) 1965-02-16 Method of preparation of new cistinil diamidas. (Machine-translation by Google Translate, not legally binding) ES405195A3 (en) 1975-07-01 Procedure for the preparation of combinations type acid 3, 4, 5-trial-coxibenzoil-aminoalcano-carboxilico and their salts. (Machine-translation by Google Translate, not legally binding) ES289923A1 (en) 1963-10-16 Procedure for the production of verrucarine derivatives (Machine-translation by Google Translate, not legally binding) ES361606A1 (en) 1970-11-16 Procedure for the preparation of new 5-nitrofurilic derivatives. (Machine-translation by Google Translate, not legally binding)

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