GB1337457A - Process for the preparation of saligenol by electrochemical reduction - Google Patents

Process for the preparation of saligenol by electrochemical reduction

Info

Publication number
GB1337457A
GB1337457A GB5362771A GB5362771A GB1337457A GB 1337457 A GB1337457 A GB 1337457A GB 5362771 A GB5362771 A GB 5362771A GB 5362771 A GB5362771 A GB 5362771A GB 1337457 A GB1337457 A GB 1337457A
Authority
GB
United Kingdom
Prior art keywords
cosolvent
saligenol
salicylic acid
nov
cathode
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
GB5362771A
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB1337457A publication Critical patent/GB1337457A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/25—Reduction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1337457 Preparing saligenol RHONEPOULENC SA 18 Nov 1971 [19 Nov 1970] 53627/71 Heading C2C [Also in Division C7] Saligenol (2-hydroxy-benzyl alcohol) is prepared by electro-chemical reduction of salicylic acid in a cell having cathode and anode compartments separated by a cation exchange membrane and a catholyte initially comprising salicylic acid, water, a cosolvent and a quarternary ammonium salt. The cosolvent may be an alcohol, ether, a nitrile or an aliphatic amide or ester, preferably ethanol or isopropanol. The quaternary ammonium salt may be a tetraalkylammonium sulphate, phosphate or halide. The catholyte can be one or two liquid phases, the latter preferably being an emulsion. The cathode may be Hg or a solid (e.g. lead) amalgam. The anolyte is preferably an aqueous acid solution, e.g. of H 2 SO 4 , H 3 PO 4 , HNO 3 , HCl, H 3 BO 3 or HBF 4 . The anode may be Pb or alloy thereof, Pt, platinized Ti or graphite. The cell may contain spacers to avoid contact of the membrane with the electrodes. Bells may be grouped in series as filter-press systems. After electrolysis, the cosolvent may be removed from unreduced salicylic acid, e.g. by distillation.
GB5362771A 1970-11-19 1971-11-18 Process for the preparation of saligenol by electrochemical reduction Expired GB1337457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7041498A FR2114195A5 (en) 1970-11-19 1970-11-19

Publications (1)

Publication Number Publication Date
GB1337457A true GB1337457A (en) 1973-11-14

Family

ID=9064393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5362771A Expired GB1337457A (en) 1970-11-19 1971-11-18 Process for the preparation of saligenol by electrochemical reduction

Country Status (9)

Country Link
US (1) US3755101A (en)
BE (1) BE775519A (en)
CA (1) CA938247A (en)
CH (1) CH551937A (en)
DE (1) DE2157560A1 (en)
FR (1) FR2114195A5 (en)
GB (1) GB1337457A (en)
NL (1) NL7115513A (en)
SU (1) SU450396A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407813A (en) * 2003-05-15 2005-05-11 John Henry Paul Tyman The solvent extraction of borates by complexation with 1,3- and 1,2-diols derived by semi-synthesis and by separation from natural phenolic lipids

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208876B2 (en) * 1972-12-01 1976-06-04 Rhone Poulenc Ind
CA1309375C (en) * 1985-11-26 1992-10-27 Shinji Takenaka Process for producing m-hydroxybenzyl alcohol
US5320816A (en) * 1992-10-21 1994-06-14 The Dow Chemical Company Process for absorption of sulfur dioxide and nitric oxide from flue gas
RU2567244C1 (en) * 2014-12-30 2015-11-10 Федеральное государственное бюджетное учреждение "33 Центральный научно-исследовательский испытательный институт Министерства обороны Российской Федерации" Method of obtaining o-hydroxybenzyl alcohol (saligenin)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12654A (en) * 1855-04-03 Improved arrangement of means for freeing steam-boilers from sediments
US815193A (en) * 1905-10-11 1906-03-13 Basf Ag Production of aromatic alcohols.
US3193480A (en) * 1963-02-01 1965-07-06 Monsanto Co Adiponitrile process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407813A (en) * 2003-05-15 2005-05-11 John Henry Paul Tyman The solvent extraction of borates by complexation with 1,3- and 1,2-diols derived by semi-synthesis and by separation from natural phenolic lipids

Also Published As

Publication number Publication date
FR2114195A5 (en) 1972-06-30
NL7115513A (en) 1972-05-24
SU450396A3 (en) 1974-11-15
US3755101A (en) 1973-08-28
CH551937A (en) 1974-07-31
CA938247A (en) 1973-12-11
DE2157560A1 (en) 1972-05-31
BE775519A (en) 1972-03-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee