BR6465394D0 - Processo para a preparacao de derivados de cromo - Google Patents

Processo para a preparacao de derivados de cromo

Info

Publication number
BR6465394D0
BR6465394D0 BR165394/64A BR16539464A BR6465394D0 BR 6465394 D0 BR6465394 D0 BR 6465394D0 BR 165394/64 A BR165394/64 A BR 165394/64A BR 16539464 A BR16539464 A BR 16539464A BR 6465394 D0 BR6465394 D0 BR 6465394D0
Authority
BR
Brazil
Prior art keywords
preparation
chrome
derivatives
chrome derivatives
Prior art date
Application number
BR165394/64A
Other languages
English (en)
Portuguese (pt)
Inventor
& Co Inc Merck
Original Assignee
& Co Inc Merck
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 & Co Inc Merck filed Critical & Co Inc Merck
Publication of BR6465394D0 publication Critical patent/BR6465394D0/pt

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
BR165394/64A 1963-12-20 1964-12-16 Processo para a preparacao de derivados de cromo BR6465394D0 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33228763A 1963-12-20 1963-12-20
US605211A US3364234A (en) 1963-12-20 1966-12-28 Chroman compounds and preparation of same

Publications (1)

Publication Number Publication Date
BR6465394D0 true BR6465394D0 (pt) 1973-09-11

Family

ID=26988148

Family Applications (1)

Application Number Title Priority Date Filing Date
BR165394/64A BR6465394D0 (pt) 1963-12-20 1964-12-16 Processo para a preparacao de derivados de cromo

Country Status (7)

Country Link
US (1) US3364234A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR6465394D0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH439323A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1300571B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1583155A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1086183A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6414659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH475977A (de) * 1965-10-12 1969-07-31 Hoffmann La Roche Verfahren zur Herstellung eines Chromanderivates
US3459773A (en) * 1966-12-27 1969-08-05 Takasago Perfumery Co Ltd Process for producing alpha-tocopherol and its esters
CH547278A (de) * 1971-01-11 1974-03-29 Hoffmann La Roche Verfahren zur herstellung von chromanderivaten.
US3903317A (en) * 1974-04-29 1975-09-02 Hoffmann La Roche Preservation of foodstuffs with synergistic antioxidant composition comprising ascorbic acid and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid
US3986980A (en) * 1974-04-29 1976-10-19 Hoffmann-La Roche Inc. Synergistic antioxidant composition comprising ascorbic acid and 6-hydroxy-2,5,7,8-tetramethylchroman-2- carboxylic acid

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA577760A (en) * 1959-06-16 Pittsburgh Plate Glass Company Preparation of phenolic alcohols
CA453166A (en) * 1948-12-07 Isler Otto Dl-tocopherols and process for the manufacture of same
DE731972C (de) * 1938-04-01 1943-02-25 Hoffmann La Roche Verfahren zur Darstellung von d 1-Tocopherolen
GB529082A (en) * 1938-05-31 1940-11-13 Univ Minnesota Improvements in chromanes and method of producing the same
DE713749C (de) * 1938-07-20 1941-11-15 Hoffmann La Roche & Co Akt Ges Verfahren zur Darstellung von Kondensationsprodukten
DE711332C (de) * 1938-12-07 1941-09-30 Merck Chem Fab E Verfahren zur Herstellung von Chromanen
BE581501A (fr) * 1958-08-27 1960-02-08 Merck & Co Inc Composés benzoquinoniques et leur préparation.
GB870638A (en) * 1958-11-07 1961-06-14 Hoffmann La Roche Derivatives of 2,3-dimethoxy-5-methyl benzohydroquinone-(1,4) and a process for the manufacture thereof
AT215995B (de) * 1958-11-07 1961-07-10 Hoffmann La Roche Verfahren zur Herstellung von neuen Chromanderivaten
US3026330A (en) * 1960-05-09 1962-03-20 Merck & Co Inc Chroman compounds having antioxidant activity
AT246437B (de) * 1961-05-29 1966-04-25 Axel Richard Dr Techn Wejnarth Gesinterte Legierung

Also Published As

Publication number Publication date
FR1583155A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-10-24
DE1300571B (de) 1969-08-07
US3364234A (en) 1968-01-16
GB1086183A (en) 1967-10-04
CH439323A (de) 1967-07-15
NL6414659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-06-21

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