GB1128046A – Benzofuran derivatives and compositions containing same
– Google Patents
GB1128046A – Benzofuran derivatives and compositions containing same
– Google Patents
Benzofuran derivatives and compositions containing same
Info
Publication number
GB1128046A
GB1128046A
GB43350/65A
GB4335065A
GB1128046A
GB 1128046 A
GB1128046 A
GB 1128046A
GB 43350/65 A
GB43350/65 A
GB 43350/65A
GB 4335065 A
GB4335065 A
GB 4335065A
GB 1128046 A
GB1128046 A
GB 1128046A
Authority
GB
United Kingdom
Prior art keywords
benzofuranyl
prepared
methyl
benzofuranol
reacting
Prior art date
1964-10-14
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
GB43350/65A
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.)
FMC Corp
Original Assignee
FMC Corp
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.)
1964-10-14
Filing date
1965-10-13
Publication date
1968-09-25
1965-10-13
Application filed by FMC Corp
filed
Critical
FMC Corp
1968-09-25
Publication of GB1128046A
publication
Critical
patent/GB1128046A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon 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
C07D307/86—Benzo [b] furans; Hydrogenated benzo [b] furans with an oxygen atom directly attached in position 7
Abstract
1,128,046. Benzofuran derivatives. FMC CORP. 13 Oct., 1965 [14 Oct., 1964], No. 43350/65. Heading C2C. [Also in Division A5] Compounds of the formula wherein R 1 and R 2 are each hydrogen or alkyl having up to 4 carbon atoms except that when R 1 and R 2 are both hydrogen, the group is in the 5-, 6- or 7-position, R 3 and R 4 are each hydrogen or alkyl having up to 4 carbon atoms, alkenyl having up to 4 carbon atoms, or alkynyl having up to 4 carbon atoms, and X is oxygen or sulphur, are prepared by esterification of the appropriate benzofuranol. In examples, the 7-benzofuranyl, 6-benzofuranyl, 2 – methyl – 4 – benzofuranyl and 3 – methyl – 4- benzofuranyl N-methyl carbamates are prepared by reacting the appropriate benzofuranol with methyl isocyanate, and the 7-benzofuranyl and 6-benzofuranyl N,N-dimethylcarbamates by reacting the benzofuranol with dimethylcarbamoyl chloride. 7-Benzofuranol is prepared by treating 7- hydroxy – 2 – benzofurancarboxylic acid with quinoline and copper powder. 7-Hydroxy-2-benzofuran carboxylic acid is prepared by treating 7-methoxy-2-benzofurancarboxylic acid with chlorobenzene in the presence of anhydrous aluminium chloride. 7-Methoxy-2-benzofuran carboxylic acid is prepared by reacting 2-hydroxy-m-anisaldehyde with ethyl bromoacetate in the presence of sodium dissolved in ethanol, and acidifying the product. 2-Methyl-4-benzofuranol is prepared by reacting a solution of sodium succinate in acetic anhydride with a solution of 6-methyl-2- furaldehyde in acetic anhydride and refluxing the product in a solution of KOH in methanol.
GB43350/65A
1964-10-14
1965-10-13
Benzofuran derivatives and compositions containing same
Expired
GB1128046A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US40391264A
1964-10-14
1964-10-14
Publications (1)
Publication Number
Publication Date
GB1128046A
true
GB1128046A
(en)
1968-09-25
Family
ID=23597415
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB43350/65A
Expired
GB1128046A
(en)
1964-10-14
1965-10-13
Benzofuran derivatives and compositions containing same
Country Status (6)
Country
Link
US
(1)
US3564605A
(en)
BE
(1)
BE670764A
(en)
CH
(1)
CH485400A
(en)
GB
(1)
GB1128046A
(en)
IL
(1)
IL24411A
(en)
NL
(1)
NL6513218A
(en)
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4006231A
(en)
*
1973-07-12
1977-02-01
The Regents Of The University Of California
N-aminosulfenylated derivatives of carbofuran
US4032649A
(en)
*
1975-11-12
1977-06-28
Gulf Oil Corporation
2,3-Dihydro-2,2-dimethyl-7-benzo[b]thienyl N-methylcarbamate and use as an insecticide
HU181665B
(en)
*
1979-11-28
1983-10-28
Chinoin Gyogyszer Es Vegyeszet
Plant protective composition containing carbofurane with increased growth promoting and insecticide effect
EP0116938A1
(en)
*
1983-02-14
1984-08-29
Usv Pharmaceutical Corporation
Benzoheterocyclic carbamates
US20070142604A1
(en)
*
2005-12-16
2007-06-21
Nina Bojkova
Polyurethanes and sulfur-containing polyurethanes and methods of preparation
1964
1964-10-14
US
US403912A
patent/US3564605A/en
not_active
Expired – Lifetime
1965
1965-10-04
IL
IL24411A
patent/IL24411A/en
unknown
1965-10-11
BE
BE670764A
patent/BE670764A/xx
unknown
1965-10-12
NL
NL6513218A
patent/NL6513218A/xx
unknown
1965-10-13
GB
GB43350/65A
patent/GB1128046A/en
not_active
Expired
1965-10-14
CH
CH1419565A
patent/CH485400A/en
not_active
IP Right Cessation
Also Published As
Publication number
Publication date
IL24411A
(en)
1970-03-22
US3564605A
(en)
1971-02-16
CH485400A
(en)
1970-02-15
NL6513218A
(en)
1966-04-15
BE670764A
(en)
1966-01-31
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