GB805915A - Manufacture of 2-chloro-pyridine - Google Patents

Manufacture of 2-chloro-pyridine

Info

Publication number
GB805915A
GB805915A GB4222/57A GB422257A GB805915A GB 805915 A GB805915 A GB 805915A GB 4222/57 A GB4222/57 A GB 4222/57A GB 422257 A GB422257 A GB 422257A GB 805915 A GB805915 A GB 805915A
Authority
GB
United Kingdom
Prior art keywords
pyridine
steam
reaction
chloropyridine
chloro
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
GB4222/57A
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.)
Olin Corp
Original Assignee
Olin 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 Olin Corp filed Critical Olin Corp
Publication of GB805915A publication Critical patent/GB805915A/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
    • C07D213/61—Halogen atoms or nitro radicals

Landscapes

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

Abstract

2-Chloro-pyridine is prepared by reacting chlorine and pyridine in the vapour phase in the presence of steam, at least 0.25 mol. of steam being introduced into the reaction zone per mol. of pyridine. Preferably from about 0.5 to 2.0 mols. of steam per mol. of pyridine are used. Specified reaction temperatures are 260 DEG to 380 DEG C. and the reaction may be carried out by passing the reactants through a glass tube which may be packed with glass beads, alumina, activated carbon or, preferably, silicon carbide. 2-Chloropyridine is extracted from the reactor effluent in known manner and excess pyridine is preferably separated as a pyridinewater azeotrope which is recycled to the reactor. In examples, a preheated equimolar mixture of pyridine and water is fed into a glass tube packed with granular silicon carbide and contacted with chlorine gas, the reaction temperature being maintained at 345-355 DEG C. and 2-chloropyridine is separated from the reactor effluent. Some 2:6-dichloropyridine is also obtained.
GB4222/57A 1956-02-10 1957-02-07 Manufacture of 2-chloro-pyridine Expired GB805915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US805915XA 1956-02-10 1956-02-10

Publications (1)

Publication Number Publication Date
GB805915A true GB805915A (en) 1958-12-17

Family

ID=22158342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4222/57A Expired GB805915A (en) 1956-02-10 1957-02-07 Manufacture of 2-chloro-pyridine

Country Status (1)

Country Link
GB (1) GB805915A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297556A (en) * 1962-11-28 1967-01-10 Olin Mathieson Manufacture of 2-chloropyridine using photolytic light
CN110229095A (en) * 2019-07-16 2019-09-13 潍坊新绿化工有限公司 A kind of synthesis of 2,3,5,6- 4 chloro pyridine and separation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297556A (en) * 1962-11-28 1967-01-10 Olin Mathieson Manufacture of 2-chloropyridine using photolytic light
CN110229095A (en) * 2019-07-16 2019-09-13 潍坊新绿化工有限公司 A kind of synthesis of 2,3,5,6- 4 chloro pyridine and separation method

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