GB638533A - Compounds of paracresol and pyridine bases - Google Patents

Compounds of paracresol and pyridine bases

Info

Publication number
GB638533A
GB638533A GB30719/47A GB3071947A GB638533A GB 638533 A GB638533 A GB 638533A GB 30719/47 A GB30719/47 A GB 30719/47A GB 3071947 A GB3071947 A GB 3071947A GB 638533 A GB638533 A GB 638533A
Authority
GB
United Kingdom
Prior art keywords
cresol
picoline
quinaldine
collidine
mixture
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
GB30719/47A
Inventor
Francis Edward Cislak
Merritt Michael Otto
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.)
Reilly Tar and Chemical Corp
Original Assignee
Reilly Tar and Chemical Corp
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 Reilly Tar and Chemical Corp filed Critical Reilly Tar and Chemical Corp
Publication of GB638533A publication Critical patent/GB638533A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
    • 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
    • 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
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
    • C07C39/06—Alkylated phenols
    • C07C39/07—Alkylated phenols containing only methyl groups, e.g. cresols, xylenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pyridine Compounds (AREA)

Abstract

An addition compound of p-cresol and 4-picoline, quinaldine, 2 : 3 : 6-collidine or 2 : 4-dimethyl quinoline which may be used in the separation of p-cresol from m-cresol is formed by treating the base with p-cresol or with a mixture of m- and p-cresol in which p-cresol predominates at a temperature sufficiently low to produce crystals of the addition compound e.g. below - 5 DEG C. when the base is 4-picoline or 2 : 3 : 6-collidine or below 15 DEG C. when the base is quinaldine or 2 : 4-dimethyl quinoline. Purified p-cresol may be recovered from the addition compound by distillation or by decomposing with aqueous caustic soda. In examples: (1) 4-picoline is added to a mixture of m- and p-cresol, the mixture is cooled to give crystals of p-cresol-4-picoline and the crystals are distilled to give p-cresol, in place of 4-picoline, 2 : 3 : 6-collidine may be used, and (2) quinaldine or 2 : 4-dimethyl quinoline are used in place of 4-picoline in the process of (1). Specification 638,532 is referred to.
GB30719/47A 1943-10-20 1947-11-19 Compounds of paracresol and pyridine bases Expired GB638533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US638533XA 1943-10-20 1943-10-20

Publications (1)

Publication Number Publication Date
GB638533A true GB638533A (en) 1950-06-07

Family

ID=22051949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30719/47A Expired GB638533A (en) 1943-10-20 1947-11-19 Compounds of paracresol and pyridine bases

Country Status (1)

Country Link
GB (1) GB638533A (en)

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