GB1226517A – – Google Patents
GB1226517A – – Google Patents
Info
Publication number
GB1226517A
GB1226517A
GB1226517DA
GB1226517A
GB 1226517 A
GB1226517 A
GB 1226517A
GB 1226517D A
GB1226517D A
GB 1226517DA
GB 1226517 A
GB1226517 A
GB 1226517A
Authority
GB
United Kingdom
Prior art keywords
alkyl
feb
chloro
phenol
dimethyl
Prior art date
1969-02-17
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
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.)
1969-02-17
Filing date
1970-02-10
Publication date
1971-03-31
1970-02-10
Application filed
filed
Critical
1971-03-31
Publication of GB1226517A
publication
Critical
patent/GB1226517A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
C07C37/02—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of halogen
Abstract
1,226,517. Alkyl dihydroxybenzenes. UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF A.G. 10 Feb., 1970 [17 Feb., 1969], No. 6278/70. Heading C2C. Alkyl dihydroxy benzenes are obtained by reacting an alkyl halogeno phenol with caustic potash in suspension in a solvent at a temperature of from 140 to 250 C., water eliminated during the reaction being removed, wholly or in part, from the reaction vessel. In the examples, toluhydroquinone, homopyrocatechol, orcinol, cresorcinol, 2,4 – dimethylpyrocatechol and 2,4-dimethyl resorcinol are prepared according to the process of the invention using 2-, 4-, and 6-chloro-m-cresols and 6-chloro-2,4-dimethyl phenol as the starting materials.
GB1226517D
1969-02-17
1970-02-10
Expired
GB1226517A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE1907879A
DE1907879C3
(en)
1969-02-17
1969-02-17
Process for the preparation of alkyldihydroxybenzenes
Publications (1)
Publication Number
Publication Date
GB1226517A
true
GB1226517A
(en)
1971-03-31
Family
ID=5725503
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1226517D
Expired
GB1226517A
(en)
1969-02-17
1970-02-10
Country Status (9)
Country
Link
US
(1)
US3778481A
(en)
JP
(1)
JPS4933939B1
(en)
AT
(1)
AT296961B
(en)
BE
(1)
BE744417A
(en)
CH
(1)
CH517680A
(en)
DE
(1)
DE1907879C3
(en)
FR
(1)
FR2035562A5
(en)
GB
(1)
GB1226517A
(en)
NL
(1)
NL164546C
(en)
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3959388A
(en)
*
1972-06-23
1976-05-25
Andeno B.V.
Preparation of phloroglucinol or its monomethyl ether
GB1451317A
(en)
*
1972-12-18
1976-09-29
Oce Andeno Bv
Preparation of phloroglucinol or its monomethyl ether
JPS5020742U
(en)
*
1973-06-22
1975-03-08
US4001340A
(en)
*
1975-09-25
1977-01-04
The Dow Chemical Company
Hydrolysis of haloaromatic compounds
JPS5724089U
(en)
*
1980-07-17
1982-02-08
Family Cites Families (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE249939C
(en)
*
DE281175C
(en)
*
DE20713C
(en)
*
Dr. A. WlNTHER in Giefsen, Wilhelmstrafse z. Z. in Biebrich a, R., Europäischer Hof
Process for the preparation of orcin
FR434548A
(en)
*
1911-05-03
1912-02-06
Paul Flemming
Method of preparation of complex alkali salts of halogenated phenols
DE349794C
(en)
*
1914-07-29
1922-03-09
Anilin Fabrikation Ag
Process for the preparation of di- and polyhalogen substitution products of monohydric phenols
US2041593A
(en)
*
1934-10-11
1936-05-19
Pennsylvania Coal Products Com
Process of hydrolyzing chlor alkyl phenols
US2111973A
(en)
*
1936-01-11
1938-03-22
Antoxygen Inc
Hydroxylation of organic compounds
US2509245A
(en)
*
1947-03-20
1950-05-30
Givaudan Corp
Preparation of 2, 4, 5-trichlorophenol
GB731067A
(en)
*
1952-01-18
1955-06-01
Ici Ltd
Improvements in and relating to the production of dihydroxy-aromatic compounds
FR1163021A
(en)
*
1955-08-11
1958-09-22
Bayer Ag
Process for the preparation of aromatic hydroxy compounds
GB887691A
(en)
*
1959-02-12
1962-01-24
Nat Polychemicals Inc
Aromatic fluorine compounds employed in the production of polymeric gums
FR1408502A
(en)
*
1963-09-19
1965-08-13
Ici Ltd
Manufacturing process for new fluorochlorobenzene derivatives
1969
1969-02-17
DE
DE1907879A
patent/DE1907879C3/en
not_active
Expired
1970
1970-01-07
CH
CH12470A
patent/CH517680A/en
not_active
IP Right Cessation
1970-01-14
BE
BE744417D
patent/BE744417A/en
not_active
IP Right Cessation
1970-02-03
NL
NL7001521.A
patent/NL164546C/en
not_active
IP Right Cessation
1970-02-10
GB
GB1226517D
patent/GB1226517A/en
not_active
Expired
1970-02-13
US
US00011342A
patent/US3778481A/en
not_active
Expired – Lifetime
1970-02-16
AT
AT137870A
patent/AT296961B/en
not_active
IP Right Cessation
1970-02-17
JP
JP45013173A
patent/JPS4933939B1/ja
active
Pending
1970-02-17
FR
FR7005674A
patent/FR2035562A5/fr
not_active
Expired
Also Published As
Publication number
Publication date
JPS4933939B1
(en)
1974-09-11
CH517680A
(en)
1972-01-15
US3778481A
(en)
1973-12-11
DE1907879A1
(en)
1970-08-27
BE744417A
(en)
1970-06-15
DE1907879C3
(en)
1978-11-02
FR2035562A5
(en)
1970-12-18
AT296961B
(en)
1972-03-10
NL7001521A
(en)
1970-08-19
NL164546B
(en)
1980-08-15
DE1907879B2
(en)
1978-02-23
NL164546C
(en)
1981-01-15
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Legal Events
Date
Code
Title
Description
1971-08-11
PS
Patent sealed [section 19, patents act 1949]
1985-10-02
PCNP
Patent ceased through non-payment of renewal fee
