GB439053A - Production of resorcinol - Google Patents

Production of resorcinol

Info

Publication number
GB439053A
GB439053A GB15915/34A GB1591534A GB439053A GB 439053 A GB439053 A GB 439053A GB 15915/34 A GB15915/34 A GB 15915/34A GB 1591534 A GB1591534 A GB 1591534A GB 439053 A GB439053 A GB 439053A
Authority
GB
United Kingdom
Prior art keywords
resorcinol
carried out
temperature
sulphur trioxide
production
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
GB15915/34A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB439053A publication Critical patent/GB439053A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
    • C07C37/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of SO3H groups or a derivative thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Abstract

Resorcinol is obtained by sulphonating benzene to the monosulphonic acid with sulphur trioxide in a medium of liquid sulphur dioxide, the reaction being carried out slowly under pressure at a temperature of 10 to 35 DEG C., then converting to the disulphonic acid with a further quantity of sulphur trioxide preferably in the absence of a diluent and at a temperature finally reaching 100 DEG C., and finally hydrolyzing the product directly with alkali metal hydroxide. The resorcinol is isolated by acidifying. The disulphonation is preferably carried out after removal of the solvent. An example of the process described is given.
GB15915/34A 1933-05-26 1934-05-28 Production of resorcinol Expired GB439053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439053XA 1933-05-26 1933-05-26

Publications (1)

Publication Number Publication Date
GB439053A true GB439053A (en) 1935-11-28

Family

ID=21929507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15915/34A Expired GB439053A (en) 1933-05-26 1934-05-28 Production of resorcinol

Country Status (1)

Country Link
GB (1) GB439053A (en)

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