DK0442340T3 - Fremgangsmåde til lithiering af 1,3-bis(trifluormethyl)benzen - Google Patents

Fremgangsmåde til lithiering af 1,3-bis(trifluormethyl)benzen

Info

Publication number
DK0442340T3
DK0442340T3 DK91101437.1T DK91101437T DK0442340T3 DK 0442340 T3 DK0442340 T3 DK 0442340T3 DK 91101437 T DK91101437 T DK 91101437T DK 0442340 T3 DK0442340 T3 DK 0442340T3
Authority
DK
Denmark
Prior art keywords
benzene
lower alkyl
lithiation
bis
tertiary
Prior art date
Application number
DK91101437.1T
Other languages
English (en)
Inventor
Raffaello Dr Masciadri
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Application granted granted Critical
Publication of DK0442340T3 publication Critical patent/DK0442340T3/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
    • C07C17/269—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions of only halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds
    • 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
    • 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
    • C07C47/55—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogenated Pyridines (AREA)
DK91101437.1T 1990-02-13 1991-02-04 Fremgangsmåde til lithiering af 1,3-bis(trifluormethyl)benzen DK0442340T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH46390 1990-02-13

Publications (1)

Publication Number Publication Date
DK0442340T3 true DK0442340T3 (da) 1995-05-15

Family

ID=4187594

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91101437.1T DK0442340T3 (da) 1990-02-13 1991-02-04 Fremgangsmåde til lithiering af 1,3-bis(trifluormethyl)benzen

Country Status (7)

Country Link
US (1) US5162577A (da)
EP (1) EP0442340B1 (da)
JP (1) JPH07119228B2 (da)
CN (2) CN1028994C (da)
AT (1) ATE118778T1 (da)
DE (1) DE59104642D1 (da)
DK (1) DK0442340T3 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1243410B (it) * 1990-12-17 1994-06-10 Donegani Guido Ist Procedimento per la funzionalizzazione di trifluorometilbenzeni
DE19858855A1 (de) * 1998-12-19 2000-06-21 Merck Patent Gmbh Verfahren zur Herstellung von ortho-substituierten Arylmetallverbindungen und deren Umsetzung mit Elektrophilen
TWI287547B (en) 2000-06-14 2007-10-01 Dow Agrosciences Llc Process for the selective deprotonation and functionalization of 3-substituted benzotrifluorides
WO2007021001A1 (ja) * 2005-08-18 2007-02-22 Ube Industries, Ltd. ２，３，４－トリフルオロ－５－置換安息香酸化合物及びその製法
DE102005054090A1 (de) * 2005-11-12 2007-05-16 Bayer Technology Services Gmbh Verfahren zur kontinuierlichen Herstellung von Difluorbenzol-Derivaten mit hohen Standzeiten
CN102659620A (zh) * 2012-05-18 2012-09-12 东南大学 2,4-双(三氟甲基)苄肼的合成方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB826619A (en) * 1955-08-09 1960-01-13 Metal & Thermit Corp A process for the production of fluorine, bromine and iodine substituted organic compounds
GB1080167A (en) * 1963-06-14 1967-08-23 Smith Kline French Lab Improvements in or relating to the production of halogenated benzene derivatives
US3663585A (en) * 1964-04-13 1972-05-16 Exxon Research Engineering Co Process for lithiating ferrocene
GB1168484A (en) * 1965-11-01 1969-10-29 Exxon Research Engineering Co Method of Making Organolithium Compounds
US3632658A (en) * 1968-08-16 1972-01-04 Firestone Tire & Rubber Co Lithiated organic compounds and their production
US3751491A (en) * 1970-04-10 1973-08-07 Sandoz Ag Bis(trifluoromethyl)benzoic acids
US3985799A (en) * 1971-01-18 1976-10-12 Sandoz, Inc. 2-Fluoro-6-trifluoromethylbenzoic acid
US3944598A (en) * 1973-06-21 1976-03-16 The Lummus Company Production of amine salts of carboxylic acids

Also Published As

Publication number Publication date
CN1054068A (zh) 1991-08-28
CN1028994C (zh) 1995-06-21
DE59104642D1 (de) 1995-03-30
JPH07119228B2 (ja) 1995-12-20
CN1108640A (zh) 1995-09-20
EP0442340A3 (en) 1992-01-22
ATE118778T1 (de) 1995-03-15
EP0442340B1 (de) 1995-02-22
JPH0770140A (ja) 1995-03-14
US5162577A (en) 1992-11-10
EP0442340A2 (de) 1991-08-21

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment