IN186855B - - Google Patents

Info

Publication number
IN186855B
IN186855B IN2956MA1997A IN186855B IN 186855 B IN186855 B IN 186855B IN 2956MA1997 A IN2956MA1997 A IN 2956MA1997A IN 186855 B IN186855 B IN 186855B
Authority
IN
India
Application number
Other languages
English (en)
Inventor
Kai-Uwe Baldenius
Wulf Kaiser
Bernhard Bockstiegel
Harald Laas
Bernhard Schulz
Peter Schmitt
Helmut Glietenberg
Original Assignee
Basf Ag
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.)
Filing date
Publication date
Application filed by Basf Ag filed Critical Basf Ag
Publication of IN186855B publication Critical patent/IN186855B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/138—Halogens; Compounds thereof with alkaline earth metals, magnesium, beryllium, zinc, cadmium or mercury
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
IN2956MA1997 1996-12-23 1997-12-22 IN186855B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996154038 DE19654038A1 (de) 1996-12-23 1996-12-23 Verfahren zur Herstellung von alpha-Tocopherol oder alpha-Tocopherylacetat durch Umsetzen von Trimethylhydrochinon und Phytol oder Isophytol unter Rückführung des Kondensationskatalysators Zinkchlorid

Publications (1)

Publication Number Publication Date
IN186855B true IN186855B (fr) 2001-11-24

Family

ID=29285767

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2956MA1997 IN186855B (fr) 1996-12-23 1997-12-22

Country Status (3)

Country Link
CN (1) CN100374430C (fr)
DE (1) DE19654038A1 (fr)
IN (1) IN186855B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101140519B1 (ko) 2004-06-11 2012-04-30 디에스엠 아이피 어셋츠 비.브이. 크로만 유도체, 특히 α-토코페롤 및 그의 알카노에이트의제조 방법
CN102964330A (zh) * 2011-08-31 2013-03-13 卫材R&D管理有限公司 α-生育酚及α-生育酚乙酸酯的制造方法
CN103788052A (zh) * 2013-10-17 2014-05-14 安徽丰原发酵技术工程研究有限公司 一种维生素e醋酸酯的制备方法
CN106565659B (zh) * 2016-11-01 2019-06-18 万华化学集团股份有限公司 一种制备维生素e乙酸酯的方法
CN110386712B (zh) * 2019-08-02 2021-10-22 山东新和成维生素有限公司 一种含锌废水综合利用的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297041A1 (fr) * 1975-01-11 1976-08-06 Ile De France N-(1'-allylpyrrolidinyl 2'methyl)2-methoxy 4,5-azimido benzamide, ses derives et ses procedes de preparation
US5663376A (en) * 1994-07-27 1997-09-02 Eisai Co., Ltd. Process for the preparation of α-tocopherol

Also Published As

Publication number Publication date
DE19654038A1 (de) 1998-06-25
CN100374430C (zh) 2008-03-12
CN1189495A (zh) 1998-08-05

Similar Documents

Publication Publication Date Title
ITMI960250A0 (fr)
ITMI960020A0 (fr)
IN183558B (fr)
IN183681B (fr)
IN186855B (fr)
IN192416B (fr)
ITMI960521A0 (fr)
ITMI960247A0 (fr)
ITMI960216A0 (fr)
ITMI960489V0 (fr)
ITMC960041A0 (fr)
ITGE960059A0 (fr)
ITMI960567V0 (fr)
ITBS960094V0 (fr)
IN181330B (fr)
IN188977B (fr)
IN186965B (fr)
IN186885B (fr)
CN3047496S (fr)
CN3047200S (fr)
CN3047647S (fr)
EP0948593A4 (fr)
CN3041383S (fr)
CN3047597S (fr)
EP0863121A4 (fr)