ZA793168B - Process for the selective monoetherification of pyrocatechol - Google Patents
Process for the selective monoetherification of pyrocatecholInfo
- Publication number
- ZA793168B ZA793168B ZA793168A ZA793168A ZA793168B ZA 793168 B ZA793168 B ZA 793168B ZA 793168 A ZA793168 A ZA 793168A ZA 793168 A ZA793168 A ZA 793168A ZA 793168 B ZA793168 B ZA 793168B
- Authority
- ZA
- South Africa
- Prior art keywords
- pyrocatechol
- monoetherification
- selective
- selective monoetherification
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/16—Preparation of ethers by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7819826A FR2434134A1 (fr) | 1978-06-26 | 1978-06-26 | Procede de preparation de l'o-methallyloxyphenol par monoetherification selective de la pyrocatechine |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA793168B true ZA793168B (en) | 1980-08-27 |
Family
ID=9210267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA793168A ZA793168B (en) | 1978-06-26 | 1979-08-16 | Process for the selective monoetherification of pyrocatechol |
Country Status (26)
Country | Link |
---|---|
US (1) | US4252985A (xx) |
JP (1) | JPS557291A (xx) |
AT (1) | AT371097B (xx) |
BE (1) | BE877243A (xx) |
BG (1) | BG35033A3 (xx) |
BR (1) | BR7904035A (xx) |
CA (1) | CA1131255A (xx) |
CH (1) | CH639055A5 (xx) |
DD (1) | DD144534A5 (xx) |
DE (1) | DE2925763A1 (xx) |
DK (1) | DK169099B1 (xx) |
ES (1) | ES481478A0 (xx) |
FR (1) | FR2434134A1 (xx) |
HU (1) | HU185608B (xx) |
IE (1) | IE49177B1 (xx) |
IL (1) | IL57539A (xx) |
IT (1) | IT1121943B (xx) |
LU (1) | LU81422A1 (xx) |
NL (1) | NL188468C (xx) |
PL (1) | PL119189B1 (xx) |
PT (1) | PT69815A (xx) |
RO (1) | RO77272A (xx) |
SE (1) | SE448373B (xx) |
SU (1) | SU952102A3 (xx) |
YU (1) | YU41163B (xx) |
ZA (1) | ZA793168B (xx) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2932458A1 (de) * | 1979-08-10 | 1981-02-26 | Bayer Ag | Herstellung von monoalkylethern von hydroxyphenolen und deren umwandlung zu hydroxycumaranen |
US4390735A (en) * | 1980-10-22 | 1983-06-28 | Ciba-Geigy Corporation | Process for the preparation of p-allylphenols |
DE3043230A1 (de) * | 1980-11-15 | 1982-07-08 | Bayer Ag, 5090 Leverkusen | Herstellung von monoalkylaethern von hydroxyphenolen |
US4465868A (en) * | 1981-07-17 | 1984-08-14 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | Process for preparing o-methallyloxyphenol |
JPS6013036Y2 (ja) * | 1981-07-29 | 1985-04-25 | 石川島播磨重工業株式会社 | 熱処理炉 |
IT1151718B (it) * | 1982-04-19 | 1986-12-24 | Brichima Spa | Procedimento per la preparazione del 2,3-diidro-2,2-dimetilbenzofuran-7-olo |
IT1196002B (it) * | 1984-01-20 | 1988-11-10 | Brichima Spa | Procedimento per la sintesi di o-isopropossifenolo |
US4639536A (en) * | 1984-08-30 | 1987-01-27 | Union Carbide Corporation | Intermediate, its synthesis, and its use in a process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran |
US4618728A (en) * | 1985-02-22 | 1986-10-21 | Fmc Corporation | Water aided catechol etherification |
US4982012A (en) * | 1987-12-18 | 1991-01-01 | Fmc Corporation | Two phase process for preparing 2-methallyloxyphenol from catechol |
US5773621A (en) * | 1994-06-13 | 1998-06-30 | Chiyoda Corporation | Gas dispersion pipe for gas-liquid contact, and device for gas-liquid contact making use thereof |
FR2772372B1 (fr) * | 1997-12-15 | 2000-05-19 | Rhodia Chimie Sa | Procede de o-alkylation de composes aromatiques hydroxyles |
CN114307217A (zh) * | 2021-12-30 | 2022-04-12 | 江苏三吉利化工股份有限公司 | 一种呋喃酚废盐中提取邻甲代烯丙氧基苯酚的装置及方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474171A (en) * | 1964-01-23 | 1969-10-21 | Fmc Corp | 2,2-dimethyl-2,3-dihydrobenzofuranyl-7-n-methylcarbamate |
US3274260A (en) * | 1964-08-31 | 1966-09-20 | Universal Oil Prod Co | Method for producing monoalkyl ethers of dihydric phenols |
GB1227144A (xx) * | 1967-04-05 | 1971-04-07 | ||
US3689570A (en) * | 1970-01-14 | 1972-09-05 | Peter S Gradeff | Monoalkylation of unsubstituted dihydric phenols with lower alkyl chlorides using alkali metal carbonates or bicarbonates as a condensing agent |
US3927118A (en) * | 1973-12-21 | 1975-12-16 | Crown Zellerbach Corp | Process for monoetherification of polyhydric benzenes |
-
1978
- 1978-06-26 FR FR7819826A patent/FR2434134A1/fr active Granted
-
1979
- 1979-06-11 IL IL57539A patent/IL57539A/xx unknown
- 1979-06-12 ES ES481478A patent/ES481478A0/es active Granted
- 1979-06-18 US US06/049,747 patent/US4252985A/en not_active Expired - Lifetime
- 1979-06-21 CH CH582079A patent/CH639055A5/fr not_active IP Right Cessation
- 1979-06-22 YU YU1482/79A patent/YU41163B/xx unknown
- 1979-06-22 CA CA330,364A patent/CA1131255A/en not_active Expired
- 1979-06-25 LU LU81422A patent/LU81422A1/fr unknown
- 1979-06-25 BG BG044043A patent/BG35033A3/xx unknown
- 1979-06-25 SU SU792782748A patent/SU952102A3/ru active
- 1979-06-25 SE SE7905545A patent/SE448373B/sv not_active IP Right Cessation
- 1979-06-25 AT AT0443479A patent/AT371097B/de not_active IP Right Cessation
- 1979-06-25 DK DK265779A patent/DK169099B1/da active
- 1979-06-25 JP JP8063879A patent/JPS557291A/ja active Granted
- 1979-06-25 PL PL1979216591A patent/PL119189B1/pl unknown
- 1979-06-25 PT PT69815A patent/PT69815A/pt not_active IP Right Cessation
- 1979-06-25 BE BE0/195945A patent/BE877243A/xx not_active IP Right Cessation
- 1979-06-26 NL NLAANVRAGE7904969,A patent/NL188468C/xx not_active IP Right Cessation
- 1979-06-26 DE DE19792925763 patent/DE2925763A1/de active Granted
- 1979-06-26 IT IT23875/79A patent/IT1121943B/it active
- 1979-06-26 BR BR7904035A patent/BR7904035A/pt not_active IP Right Cessation
- 1979-06-26 HU HU79PI680A patent/HU185608B/hu not_active IP Right Cessation
- 1979-06-26 DD DD79213901A patent/DD144534A5/de unknown
- 1979-06-26 RO RO7997963A patent/RO77272A/ro unknown
- 1979-08-08 IE IE1176/79A patent/IE49177B1/en not_active IP Right Cessation
- 1979-08-16 ZA ZA793168A patent/ZA793168B/xx unknown
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