GB1182942A - Process for the Manufacture of Pyridine-Carboxylic Acid Esters. - Google Patents

Process for the Manufacture of Pyridine-Carboxylic Acid Esters.

Info

Publication number
GB1182942A
GB1182942A GB1296167A GB1296167A GB1182942A GB 1182942 A GB1182942 A GB 1182942A GB 1296167 A GB1296167 A GB 1296167A GB 1296167 A GB1296167 A GB 1296167A GB 1182942 A GB1182942 A GB 1182942A
Authority
GB
United Kingdom
Prior art keywords
dried
condensate
autoclave
march
valve
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
GB1296167A
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
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 Ciba AG filed Critical Ciba AG
Publication of GB1182942A publication Critical patent/GB1182942A/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
    • C07D213/60—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 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/79—Acids; Esters
    • C07D213/803—Processes of preparation

Landscapes

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

Abstract

1,182,942. Azeotropic distillation. CIBA Ltd. 20 March, 1967 [18 March, 1966; 8 Feb., 1967], No. 12961/67. Heading B1B. [Also in Division C2] In a process for removing water from a liquid mixture in an autoclave 1 by azeotropic distillation with an immiscible entrainer, such as benzene, the vapours rise through tube 2 into a steel Soxhlet extractor 3 and condense on steel cooling coil 4. The moist condensate is dried by molecular sieve 5, and the dry condensate returns through siphon 6 to the autoclave 1. With valve 11 closed, the dried condensate flows back discontinuously; but when valve 11 is open, the dried condensate flows back continuously. The sieve may consist of alkali aluminium silicate, the pore diameter being 3A. The production of alkyl esters of pyridine carboxylic acids is described (see Division C2).
GB1296167A 1966-03-18 1967-03-20 Process for the Manufacture of Pyridine-Carboxylic Acid Esters. Expired GB1182942A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH397466A CH485722A (en) 1966-03-18 1966-03-18 Process for the preparation of pyridine carboxylic acid esters
CH188767 1967-02-08

Publications (1)

Publication Number Publication Date
GB1182942A true GB1182942A (en) 1970-03-04

Family

ID=25688923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1296167A Expired GB1182942A (en) 1966-03-18 1967-03-20 Process for the Manufacture of Pyridine-Carboxylic Acid Esters.

Country Status (7)

Country Link
BE (1) BE695685A (en)
CH (1) CH485722A (en)
DE (1) DE1670433A1 (en)
DK (1) DK119503B (en)
FR (1) FR1514021A (en)
GB (1) GB1182942A (en)
NL (1) NL6704077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993012241A1 (en) * 1991-12-19 1993-06-24 Karlshamns Oils & Fats Ab Method for removing water in enzyme-catalysed reactions and arrangement for carrying out the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993012241A1 (en) * 1991-12-19 1993-06-24 Karlshamns Oils & Fats Ab Method for removing water in enzyme-catalysed reactions and arrangement for carrying out the method

Also Published As

Publication number Publication date
CH485722A (en) 1970-02-15
BE695685A (en) 1967-09-18
DE1670433A1 (en) 1971-02-11
FR1514021A (en) 1968-02-16
DK119503B (en) 1971-01-18
NL6704077A (en) 1967-09-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees