CA1066702A - Process for preparing benzofuran derivatives - Google Patents

Process for preparing benzofuran derivatives

Info

Publication number
CA1066702A
CA1066702A CA234,105A CA234105A CA1066702A CA 1066702 A CA1066702 A CA 1066702A CA 234105 A CA234105 A CA 234105A CA 1066702 A CA1066702 A CA 1066702A
Authority
CA
Canada
Prior art keywords
formula
compound
group
alkyl group
benzoquinone
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
CA234,105A
Other languages
English (en)
French (fr)
Inventor
John F. Harris
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.)
Fisons Ltd
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
Application granted granted Critical
Publication of CA1066702A publication Critical patent/CA1066702A/en
Expired legal-status Critical Current

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)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Furan Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
CA234,105A 1974-09-05 1975-08-21 Process for preparing benzofuran derivatives Expired CA1066702A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB3881574 1974-09-05
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
GB3881874 1974-09-05

Publications (1)

Publication Number Publication Date
CA1066702A true CA1066702A (en) 1979-11-20

Family

ID=27448926

Family Applications (2)

Application Number Title Priority Date Filing Date
CA234,105A Expired CA1066702A (en) 1974-09-05 1975-08-21 Process for preparing benzofuran derivatives
CA234,108A Expired CA1068288A (en) 1974-09-05 1975-08-21 2-lower alkyl-2,3-dihydro-5-benzofuranyl esters of lower alkyl sulfonic acids

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA234,108A Expired CA1068288A (en) 1974-09-05 1975-08-21 2-lower alkyl-2,3-dihydro-5-benzofuranyl esters of lower alkyl sulfonic acids

Country Status (9)

Country Link
JP (2) JPS5154547A (nl)
AU (2) AU497714B2 (nl)
BE (2) BE832938A (nl)
CA (2) CA1066702A (nl)
CH (2) CH608797A5 (nl)
DE (2) DE2537891A1 (nl)
FR (2) FR2283898A1 (nl)
GB (2) GB1522142A (nl)
NL (2) NL7510048A (nl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329126A1 (de) * 1983-08-11 1985-02-28 Bayer Ag, 5090 Leverkusen Neue benzokondensierte, tetrachlorierte, heterocyclische verbindungen und ein verfahren zu ihrer herstellung

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
FR2283898A1 (fr) 1976-04-02
FR2283898B1 (nl) 1978-10-20
AU8414375A (en) 1977-02-24
GB1522142A (en) 1978-08-23
DE2537891A1 (de) 1976-03-18
JPS5154547A (en) 1976-05-13
FR2296629B1 (nl) 1980-04-11
AU497714B2 (en) 1979-01-04
AU497993B2 (en) 1979-02-01
CH608797A5 (en) 1979-01-31
AU8413875A (en) 1977-02-24
NL7510228A (nl) 1976-03-09
FR2296629A1 (fr) 1976-07-30
NL7510048A (nl) 1976-03-09
DE2537913A1 (de) 1976-03-18
CA1068288A (en) 1979-12-18
GB1522141A (en) 1978-08-23
BE832938A (fr) 1976-03-01
CH610587A5 (en) 1979-04-30
BE832937A (fr) 1976-03-01
JPS5154548A (en) 1976-05-13

Similar Documents

Publication Publication Date Title
US5136052A (en) Process for the manufacture of n-phenylmaleimide
US4868322A (en) Process for preparing trithiocarbonic acid diesters
CN101522605B (zh) 分离4-甲酰基苯甲酸甲酯和对苯二甲酸二甲酯的方法
US5783723A (en) Process for the preparation of dialkyl succinylsuccinates
CA1066702A (en) Process for preparing benzofuran derivatives
EP0270724B1 (en) Preparation of alkyl trifluoroacetoacetate
US4467117A (en) Process for the production and purification of 2,4,4'-trichloro-2'-hydroxydiphenylether
EP0169688B1 (en) Process for preparing anti-inflammatory cycloalkylidenemethylphenylacetic acid derivatives
US4091033A (en) Method of making 2-alkoxy-2,3-dihydro-benzofuran-5-ols and their alkyl sulfonic acid esters
US4011254A (en) Process for the purification of diaminomaleonitrile
US4192804A (en) Process for the purification of mercaptobenzothiazole
US5026852A (en) Process for the preparation of cytosines
US4876337A (en) Method and apparatus for the preparation of cyanoalkyl-alkoxysilanes
EP0148145B1 (en) Process for making nitrodiarylamines
US3448137A (en) Method of preparing 4-alkyl-2,2-dimethyl-2-silamorpholines
EP0021645B1 (en) Process for the preparation of 3-thienylmalonic acid
JPH08259513A (ja) 置換カルボジイミドの合成方法
EP0370357B1 (en) Process for producing 3-iminonitriles
US5187297A (en) Process for the production of 3-aminocrotononitrile
US5861526A (en) Process for reducing dithiocarbazinate buildup in the preparation of methyl dithiocarbazinate
US5696283A (en) Preparation of methyl isoproylideneaminooxyacetoxyacetate
IL99378A (en) Synthesis of monoalkanoyl prodrugs
IE41513B1 (en) PROCESS FOR THE PRODUCTION OF 2,3-DIHYDR08ENZ0FURANS
JP2759087B2 (ja) １，４―ジヒドロキシ―２―ナフトエ酸アリールエステルの精製方法
US5113001A (en) Process for preparing sulfophenylalkylsiloxanes or sulfonaphthylalkylsiloxanes