IN188430B - - Google Patents
Info
- Publication number
- IN188430B IN188430B IN388MA1999A IN188430B IN 188430 B IN188430 B IN 188430B IN 388MA1999 A IN388MA1999 A IN 388MA1999A IN 188430 B IN188430 B IN 188430B
- Authority
- IN
- India
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98106237 | 1998-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN188430B true IN188430B (no) | 2002-09-21 |
Family
ID=8231723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN388MA1999 IN188430B (no) | 1998-04-06 | 1999-04-05 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6066745A (no) |
| EP (1) | EP0949255B1 (no) |
| JP (1) | JP2000053673A (no) |
| KR (1) | KR19990082913A (no) |
| CN (1) | CN1181068C (no) |
| BR (1) | BR9902217A (no) |
| CA (1) | CA2267826A1 (no) |
| DE (1) | DE69931421T2 (no) |
| ES (1) | ES2264230T3 (no) |
| IN (1) | IN188430B (no) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6369242B2 (en) | 2000-03-17 | 2002-04-09 | Roche Vitamins Inc. | Tocopherol manufacture by tris(perfluorohydrocarbylsulphonyl) methane or metal methides thereof |
| DK1180517T3 (da) | 2000-08-18 | 2003-11-17 | Roche Vitamins Ag | Fremgangsmåde til fremstilling af (all-rac)-alfa-tocopherol |
| AU2003270295A1 (en) * | 2002-11-21 | 2004-06-15 | Dsm Ip Assets B.V. | MANUFACTURE OF Alpha-TOCOPHEROL |
| ATE378325T1 (de) * | 2002-11-21 | 2007-11-15 | Dsm Ip Assets Bv | Herstellung von tocoferylazetaten |
| CN100344621C (zh) * | 2003-01-13 | 2007-10-24 | 帝斯曼知识产权资产管理有限公司 | α－生育酚乙酸酯的生产方法 |
| CA2638940C (en) * | 2008-08-28 | 2009-09-15 | Dalton Chemical Laboratories Inc. | Improved synthesis of hexahydrodibenzopyranones |
| CN102276572B (zh) * | 2011-09-14 | 2013-03-27 | 重庆大学 | 一种制备维生素e乙酸酯的方法 |
| WO2019185938A2 (en) | 2018-03-29 | 2019-10-03 | Dsm Ip Assets B.V. | Novel use of substituted chroman-6-ols with extended lipophilic side chains |
| CN114901650B (zh) | 2019-12-19 | 2024-09-03 | 帝斯曼知识产权资产管理有限公司 | 由2,3,6-三甲基苯酚形成α-生育酚 |
| CN113083339B (zh) * | 2021-04-15 | 2022-11-08 | 万华化学(四川)有限公司 | 一种用于制备维生素e的催化剂及其制备方法和应用 |
| JP2024517559A (ja) | 2021-04-28 | 2024-04-23 | ディーエスエム アイピー アセッツ ビー．ブイ． | ２，３，５－トリメチルヒドロキノン及び不飽和アルコールのカップリング |
| WO2024180228A1 (en) | 2023-03-01 | 2024-09-06 | Dsm Ip Assets B.V. | Manufacturing 2,3,5-trimethylhydroquinone from a mixture of mesitol and 2,3,6-trimethylphenol |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2411969A (en) * | 1938-03-31 | 1946-12-03 | Hoffmann La Roche | Process for the preparation of synthetic dl-tocopherols |
| US2723278A (en) * | 1954-01-25 | 1955-11-08 | Hoffmann La Roche | Preparation of alpha-tocopherol |
| CH506516A (de) * | 1968-02-27 | 1971-04-30 | Hoffmann La Roche | Verfahren zur Herstellung von Chromanolen |
| US3708505A (en) * | 1971-02-25 | 1973-01-02 | Diamond Shamrock Corp | Process for preparation of d,l-alpha tocopherol |
| US5663376A (en) * | 1994-07-27 | 1997-09-02 | Eisai Co., Ltd. | Process for the preparation of α-tocopherol |
| WO1997028151A1 (de) * | 1996-01-29 | 1997-08-07 | Basf Aktiengesellschaft | VERFAHREN ZUR HERSTELLUNG VON DL-α-TOCOPHEROL ODER DL-α-TOCOPHERYLACETAT |
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1999
- 1999-03-30 DE DE69931421T patent/DE69931421T2/de not_active Expired - Lifetime
- 1999-03-30 EP EP99106507A patent/EP0949255B1/en not_active Expired - Lifetime
- 1999-03-30 ES ES99106507T patent/ES2264230T3/es not_active Expired - Lifetime
- 1999-03-31 CA CA002267826A patent/CA2267826A1/en not_active Abandoned
- 1999-03-31 US US09/282,411 patent/US6066745A/en not_active Expired - Lifetime
- 1999-04-03 KR KR1019990011713A patent/KR19990082913A/ko active IP Right Grant
- 1999-04-05 IN IN388MA1999 patent/IN188430B/en unknown
- 1999-04-05 BR BR9902217-6A patent/BR9902217A/pt not_active Application Discontinuation
- 1999-04-06 CN CNB991049195A patent/CN1181068C/zh not_active Expired - Lifetime
- 1999-04-06 JP JP11098266A patent/JP2000053673A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000053673A (ja) | 2000-02-22 |
| ES2264230T3 (es) | 2006-12-16 |
| EP0949255B1 (en) | 2006-05-24 |
| CA2267826A1 (en) | 1999-10-06 |
| EP0949255A1 (en) | 1999-10-13 |
| DE69931421T2 (de) | 2006-11-09 |
| CN1181068C (zh) | 2004-12-22 |
| KR19990082913A (ko) | 1999-11-25 |
| DE69931421D1 (de) | 2006-06-29 |
| BR9902217A (pt) | 2000-05-02 |
| CN1234402A (zh) | 1999-11-10 |
| US6066745A (en) | 2000-05-23 |