CH610587A5 - Process for the synthesis of benzofuran derivatives - Google Patents

Process for the synthesis of benzofuran derivatives

Info

Publication number
CH610587A5
CH610587A5 CH1148675A CH1148675A CH610587A5 CH 610587 A5 CH610587 A5 CH 610587A5 CH 1148675 A CH1148675 A CH 1148675A CH 1148675 A CH1148675 A CH 1148675A CH 610587 A5 CH610587 A5 CH 610587A5
Authority
CH
Switzerland
Prior art keywords
formula
alkyl
product
synthesis
alk
Prior art date
Application number
CH1148675A
Inventor
John Frederick Harris
Original Assignee
Fisons Ltd
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 Fisons Ltd filed Critical Fisons Ltd
Publication of CH610587A5 publication Critical patent/CH610587A5/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/027—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring
    • C07D295/03—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to acyclic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
    • C07D307/83—Oxygen atoms
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Furan Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

The compounds of formula I are prepared by hydrolysis of the group -NR<3>R<4> of a compound of formula II and alkoxylation of the adjacent carbon atom. R<1> and R<3> = H or alkyl, R<3> and R<4> = alkyl or form a heterocyclic ring with N, R<6> = H or alk-SO2- and M = alkyl. When R<6> = H, the product of formula I is reacted with an alkanesulphonyl halide in order to convert it to a product of formula I where R<6> = alk-SO2-, which is known as a herbicide. The compound of formula II must be contaminated by less than 1 mole % of hydroquinone or of its derivatives in order that the solutions of the herbicidal product of formula I do not form a precipitate on standing. <IMAGE>
CH1148675A 1974-09-05 1975-09-04 Process for the synthesis of benzofuran derivatives CH610587A5 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB38814/74A GB1522141A (en) 1974-09-05 1974-09-05 2,3-dihydrobenzofuran derivatives and a process for their preparation
GB33686/75A GB1522142A (en) 1974-09-05 1974-09-05 Process for the production of 2,3-dihydrobenzofurans
GB3881574 1974-09-05
GB3881874 1974-09-05

Publications (1)

Publication Number Publication Date
CH610587A5 true CH610587A5 (en) 1979-04-30

Family

ID=27448926

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1148675A CH610587A5 (en) 1974-09-05 1975-09-04 Process for the synthesis of benzofuran derivatives
CH7511485A CH608797A5 (en) 1974-09-05 1975-09-04 Process for the preparation of heterocyclic compounds

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH7511485A CH608797A5 (en) 1974-09-05 1975-09-04 Process for the preparation of heterocyclic compounds

Country Status (9)

Country Link
JP (2) JPS5154547A (en)
AU (2) AU497714B2 (en)
BE (2) BE832937A (en)
CA (2) CA1066702A (en)
CH (2) CH610587A5 (en)
DE (2) DE2537913A1 (en)
FR (2) FR2283898A1 (en)
GB (2) GB1522142A (en)
NL (2) NL7510048A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329126A1 (en) * 1983-08-11 1985-02-28 Bayer Ag, 5090 Leverkusen NEW BENZO-CONDENSED, TETRACHLORATED, HETEROCYCLIC COMPOUNDS AND A METHOD FOR THEIR PRODUCTION

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412109A (en) * 1964-09-25 1968-11-19 Upjohn Co Process for 2-alkoxy-2, 3-dihydro 5-benzofuranols

Also Published As

Publication number Publication date
JPS5154548A (en) 1976-05-13
BE832937A (en) 1976-03-01
CA1066702A (en) 1979-11-20
NL7510048A (en) 1976-03-09
CA1068288A (en) 1979-12-18
AU497714B2 (en) 1979-01-04
AU497993B2 (en) 1979-02-01
FR2283898B1 (en) 1978-10-20
DE2537891A1 (en) 1976-03-18
DE2537913A1 (en) 1976-03-18
NL7510228A (en) 1976-03-09
AU8414375A (en) 1977-02-24
BE832938A (en) 1976-03-01
FR2296629B1 (en) 1980-04-11
FR2296629A1 (en) 1976-07-30
GB1522141A (en) 1978-08-23
FR2283898A1 (en) 1976-04-02
CH608797A5 (en) 1979-01-31
GB1522142A (en) 1978-08-23
JPS5154547A (en) 1976-05-13
AU8413875A (en) 1977-02-24

Similar Documents

Publication Publication Date Title
ES455095A1 (en) Triazolyl-alkanones or triazolyl-alkanols
PH15864A (en) 2-(2-alkoxy-methyl)-2-hydroxy-6-7 benzomorphans and salts thereof
SE7502286L (en)
SE7602144L (en) QUATER IMIDAZOLIUM ASSOCIATIONS
PT69950A (en) Process for preparing novel oxadiazolopyrimidine derivatives
ES451457A1 (en) 1,3,7-Trisubstitued xanthine peripheral vasodilators
CH610587A5 (en) Process for the synthesis of benzofuran derivatives
ES459186A1 (en) Polyprenyl carboxylic acid compound
ES423233A1 (en) 2-phenylamino-imidazolines-(2)
ES421068A1 (en) Procedure for the preparation of new 2-phenylamine-substitute imidazolines. (Machine-translation by Google Translate, not legally binding)
GB2017087A (en) Process for the preparation of xanthone derivatives
ES8307236A1 (en) Process for the preparation of a furan derivative.
GB2019843A (en) N-Alkenylmoranoline derivatives
ES456090A1 (en) 2-amino-or acylamino)-1-sulphonyl-benzoimidazole derivativves
GB1436357A (en) Tri-iodo benzene derivatives and their use as x-ray contrast
ES445263A1 (en) Dimercaptoethyl ether sulfonium compounds and use as antiinflammatory and antirheumatic agents
DE2967329D1 (en) Cholesterol derivatives as intermediary products for the synthesis of immunologic adjuvants
GB1460536A (en) Process for &#39;he preparation of thiophene derivatives and deriva tives obtained by the said process
ES463826A1 (en) 0-(2,3-Epoxypropyl)-hydroximic acid esters
GB955353A (en) Improvements in or relating to novel pyridine derivatives
ES442837A2 (en) 3-alkyl-7-oxoalkyl-xanthine derivatives
ES459954A1 (en) Derivatives of cyclopropane
ES451375A1 (en) 2,4-diamino-5-benzylpyrimidines
GB1460537A (en) Process for the preparation of thiophene derivatives and deri vatives obtained by the said process
IE42384L (en) Oxothiodimethylamides

Legal Events

Date Code Title Description
PL Patent ceased