ES477207A1 - Proceso perfeccionado para preparar alcoholes y aldeidos aromaticos. - Google Patents

Proceso perfeccionado para preparar alcoholes y aldeidos aromaticos.

Info

Publication number
ES477207A1
ES477207A1 ES477207A ES477207A ES477207A1 ES 477207 A1 ES477207 A1 ES 477207A1 ES 477207 A ES477207 A ES 477207A ES 477207 A ES477207 A ES 477207A ES 477207 A1 ES477207 A1 ES 477207A1
Authority
ES
Spain
Prior art keywords
alcohols
aromatic aldehydes
preparing aromatic
alcohol
mixed anhydride
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES477207A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sigma Tau Industrie Farmaceutiche Riunite SpA
Original Assignee
Sigma Tau Industrie Farmaceutiche Riunite SpA
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
Priority claimed from IT4781178A external-priority patent/IT1155794B/it
Priority claimed from IT4753779A external-priority patent/IT1188814B/it
Application filed by Sigma Tau Industrie Farmaceutiche Riunite SpA filed Critical Sigma Tau Industrie Farmaceutiche Riunite SpA
Publication of ES477207A1 publication Critical patent/ES477207A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/52—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings
    • C07C47/575—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings containing ether groups, groups, groups, or groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
    • C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
    • C07C29/147—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
    • C07C29/149—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof with hydrogen or hydrogen-containing gases
    • 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
    • C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/26—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of hydroxy or O-metal groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
    • C07C45/292—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups with chromium derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
    • C07C45/298—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups with manganese derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/30—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with halogen containing compounds, e.g. hypohalogenation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Proceso perfeccionado para preparar alcoholes y aldehídos aromáticos, que comprende los pasos consistentes en: (1) hacer reaccionar a 5-10ºC, a presión atmosférica, un ácido aromático seleccionado del grupo formado por el ácido benzoico y sus derivados, de acuerdo con el método de los anhídridos mezclados, con cloroformiato de etilo o isobutilo, en presencia de una base anhidra o un disolvente anhidro, inerte con respecto a los reactivos, obteniendo el correspondiente anhídrido mezclado; (2) hidrogenar por catálisis el anhídrido mezclado del paso (1) a 55-65ºC, a 150-250 libras por pulgadas cuadrada (10,54-17,57 Kg/cm2) durante 8-12 horas en presencia de un catalizador de hidrogenación, obteniendo el correspondiente alcohol bencílicos; y (3) oxidar el alcohol bencílico del paso (2) en el correspondiente aldehído.
ES477207A 1978-01-27 1979-01-26 Proceso perfeccionado para preparar alcoholes y aldeidos aromaticos. Expired ES477207A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4781178A IT1155794B (it) 1978-01-27 1978-01-27 Metodo per la preparazione industriale di 3,4,5-trimetossi benzaldeide e dell'alcool 3,4,5-trimetossibenzilico
IT4753779A IT1188814B (it) 1979-01-04 1979-01-04 Procedimento migliorato per la preparazione di aldeidi e alcooli aromatici

Publications (1)

Publication Number Publication Date
ES477207A1 true ES477207A1 (es) 1979-10-16

Family

ID=26329200

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477207A Expired ES477207A1 (es) 1978-01-27 1979-01-26 Proceso perfeccionado para preparar alcoholes y aldeidos aromaticos.

Country Status (16)

Country Link
US (1) US4239702A (es)
JP (1) JPS54112831A (es)
AU (1) AU523640B2 (es)
CA (1) CA1121383A (es)
CH (1) CH641752A5 (es)
DE (1) DE2902541A1 (es)
DK (1) DK33879A (es)
ES (1) ES477207A1 (es)
FR (1) FR2415614A1 (es)
GB (1) GB2013203B (es)
IE (1) IE47646B1 (es)
LU (1) LU80835A1 (es)
NL (1) NL186313C (es)
NO (1) NO149956C (es)
PT (1) PT69138A (es)
SE (1) SE448372B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036967A1 (de) * 1980-10-01 1982-05-13 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 3-brom-4-fluor-benzylalkohol und neue zwischenprodukte hierfuer
US4824612A (en) * 1986-12-15 1989-04-25 Ciba-Geigy Corporation Process for oxidizing secondary aromatic alcohols
US5072023A (en) * 1990-02-15 1991-12-10 E. R. Squibb & Sons, Inc. Process for preparing highly substituted phenyls

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1123664A (fr) * 1954-02-23 1956-09-25 Chinoin Gyogyszer Es Vegyeszet Procédé de préparation d'alcools primaires
US2883426A (en) * 1956-10-05 1959-04-21 Shell Dev Process for the preparation of aldehydes and ketones
US3322833A (en) * 1963-01-24 1967-05-30 Sun Oil Co Preparation of aromatic aldehydes
BE789586A (fr) * 1972-03-27 1973-04-02 Hoffmann La Roche Procede pour la preparation de 3,4,5-trimethoxy-benzaldehyde
US3978140A (en) * 1974-09-23 1976-08-31 Aldrich-Boranes, Inc. Process for the preparation of carbinols
US3996259A (en) * 1975-11-06 1976-12-07 The Dow Chemical Company Oxidation of organic compounds by aqueous hypohalites using phase transfer catalysis

Also Published As

Publication number Publication date
GB2013203A (en) 1979-08-08
US4239702A (en) 1980-12-16
JPS54112831A (en) 1979-09-04
NL7900366A (nl) 1979-07-31
FR2415614B1 (es) 1984-07-27
NO149956B (no) 1984-04-16
LU80835A1 (fr) 1979-06-05
SE7900715L (sv) 1979-07-28
NO790258L (no) 1979-07-30
IE47646B1 (en) 1984-05-16
NL186313B (nl) 1990-06-01
CA1121383A (en) 1982-04-06
DE2902541A1 (de) 1979-08-02
DE2902541C2 (es) 1987-08-27
NL186313C (nl) 1990-11-01
PT69138A (en) 1979-02-01
CH641752A5 (it) 1984-03-15
DK33879A (da) 1979-07-28
NO149956C (no) 1984-08-01
AU4369479A (en) 1979-08-02
GB2013203B (en) 1982-04-07
IE790086L (en) 1979-07-27
JPS635383B2 (es) 1988-02-03
AU523640B2 (en) 1982-08-05
FR2415614A1 (fr) 1979-08-24
SE448372B (sv) 1987-02-16

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