IE43884L - Preparation of pyrogallol compound - Google Patents
Preparation of pyrogallol compoundInfo
- Publication number
- IE43884L IE43884L IE762600A IE260076A IE43884L IE 43884 L IE43884 L IE 43884L IE 762600 A IE762600 A IE 762600A IE 260076 A IE260076 A IE 260076A IE 43884 L IE43884 L IE 43884L
- Authority
- IE
- Ireland
- Prior art keywords
- preparation
- pyrogallol compound
- formula
- image
- pyrogallol
- Prior art date
Links
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
- C07C37/06—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation
- C07C37/07—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation with simultaneous reduction of C=O group in that ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A pyrogallol of formula I is prepared by hydrolysis of a 2,2,6,6-tetrahalocyclohexanone of formula II, it being possible for the latter to be obtained by halogenation of cyclohexanone. In the formulae, R<1> to R<3> are each a halogen atom or an alkyl radical and the Xs are either chlorine atoms or are all bromine atoms. This process is more efficient than that by decarboxylation of gallic acid. <IMAGE> <IMAGE>
[CH618670A5]
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4914275A GB1574413A (en) | 1975-11-29 | 1975-11-29 | Preparation of pyrogallol compound |
GB3200776 | 1976-07-31 | ||
GB4431876 | 1976-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE43884L true IE43884L (en) | 1977-05-29 |
IE43884B1 IE43884B1 (en) | 1981-06-17 |
Family
ID=27259018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE2600/76A IE43884B1 (en) | 1975-11-29 | 1976-11-26 | Preparation of pyrogallol compound |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS6030659B2 (en) |
BR (1) | BR7607946A (en) |
CH (1) | CH618670A5 (en) |
DD (1) | DD130574A5 (en) |
DE (1) | DE2653446C2 (en) |
ES (1) | ES453741A1 (en) |
FR (1) | FR2333767A1 (en) |
IE (1) | IE43884B1 (en) |
IL (1) | IL50995A (en) |
IT (1) | IT1124781B (en) |
NL (1) | NL7613207A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6472190B1 (en) | 2000-03-16 | 2002-10-29 | Board Of Trustees Operating Michigan State Univerisity | Biocatalytic synthesis of galloid organics |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1317080A (en) * | 1971-02-16 | 1973-05-16 | Quaker Oats Co | Preparation of o-chlorophenols |
-
1976
- 1976-11-25 DE DE2653446A patent/DE2653446C2/en not_active Expired
- 1976-11-25 IL IL50995A patent/IL50995A/en unknown
- 1976-11-26 NL NL7613207A patent/NL7613207A/en not_active Application Discontinuation
- 1976-11-26 DD DD7600195988A patent/DD130574A5/en unknown
- 1976-11-26 CH CH1493476A patent/CH618670A5/en not_active IP Right Cessation
- 1976-11-26 BR BR7607946A patent/BR7607946A/en unknown
- 1976-11-26 FR FR7635654A patent/FR2333767A1/en active Granted
- 1976-11-26 IE IE2600/76A patent/IE43884B1/en unknown
- 1976-11-27 ES ES76453741A patent/ES453741A1/en not_active Expired
- 1976-11-29 IT IT7629891A patent/IT1124781B/en active
- 1976-11-29 JP JP51142372A patent/JPS6030659B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5268135A (en) | 1977-06-06 |
BR7607946A (en) | 1977-11-08 |
NL7613207A (en) | 1977-06-01 |
JPS6030659B2 (en) | 1985-07-17 |
FR2333767B1 (en) | 1982-11-19 |
DE2653446C2 (en) | 1985-08-22 |
IL50995A (en) | 1979-11-30 |
IE43884B1 (en) | 1981-06-17 |
CH618670A5 (en) | 1980-08-15 |
IT1124781B (en) | 1986-05-14 |
DE2653446A1 (en) | 1977-06-08 |
DD130574A5 (en) | 1978-04-12 |
ES453741A1 (en) | 1978-01-16 |
FR2333767A1 (en) | 1977-07-01 |
IL50995A0 (en) | 1977-01-31 |
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