GB651596A - Manufacture of n-(2-pyridyl)-n-(p-chloro-benzyl)-n:n-dimethyl-ethylenediamine - Google Patents

Manufacture of n-(2-pyridyl)-n-(p-chloro-benzyl)-n:n-dimethyl-ethylenediamine

Info

Publication number
GB651596A
GB651596A GB21768/48A GB2176848A GB651596A GB 651596 A GB651596 A GB 651596A GB 21768/48 A GB21768/48 A GB 21768/48A GB 2176848 A GB2176848 A GB 2176848A GB 651596 A GB651596 A GB 651596A
Authority
GB
United Kingdom
Prior art keywords
chlorobenzyl
dimethyl
pyridine
acid
ethylenediamine
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
GB21768/48A
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.)
Novartis AG
Original Assignee
JR Geigy 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 JR Geigy AG filed Critical JR Geigy AG
Publication of GB651596A publication Critical patent/GB651596A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/12Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic 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
    • C07D213/02Heterocyclic 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
    • C07D213/04Heterocyclic 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
    • C07D213/60Heterocyclic 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
    • C07D213/72Nitrogen atoms
    • C07D213/73Unsubstituted amino or imino radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic 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
    • C07D213/02Heterocyclic 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
    • C07D213/04Heterocyclic 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
    • C07D213/60Heterocyclic 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
    • C07D213/72Nitrogen atoms
    • C07D213/74Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic 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
    • C07D213/02Heterocyclic 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
    • C07D213/04Heterocyclic 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
    • C07D213/60Heterocyclic 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
    • C07D213/72Nitrogen atoms
    • C07D213/75Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates

Landscapes

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

Abstract

N-(2-pyridyl)-N-(p-chlorobenzyl)-N1, N1-dimethyl-ethylenediamine is prepared by reacting N - (2 - pyridyl) - N1,N1 - dimethyl - ethylenediamine with a reactive ester of p-chlorobenzyl alcohol, e.g., a halide ester, in the presence of an acid-binding agent, such as sodamide, which is capable of exchanging a hydrogen atom by a metal atom. In a modification, the same compound is made by reacting 2-(p-chlorobenzyl)-amino pyridine with a reactive ester of b -di-methylamino ethanol in the presence of the acid-binding agent, and in another modification, N-(p-chlorobenzyl)-N1,N1-dimethyl-ethylene diamine is heated with a 2-halogen-pyridine in the presence of an acid-binding agent such as pyridine, quinoline or potassium carbonate, or a catalyst such as copper-bronze, which promotes the splitting off of hydrochloric acid. In examples: (1) 2-(b -dimethylaminoethyl)-amino pyridine is first boiled with sodamide in the presence of toluene and the product then reacted with p-chlorobenzyl chloride; (2) 2-bromopyridine, N,N-dimethyl-N1-(p-chlorobenzyl)-ethylenediamine (prepared by boiling an alcoholic solution of p-chlorobenzylamine with dimethylamino-ethyl chloride) and pyridine are heated together; (3) N-(2-pyridyl)-N1,N1-dimethyl - ethylenediamine, p - chlorobenzyl chloride, sodamide and toluene are heated together; and (4) 2 - (p - chlorobenzylamino)-pyridine (produced by reductive condensation of 2-aminopyridine with p-chlorobenzaldehyde by means of formic acid) is first reacted with sodamide in the presence of benzene and then heated with b -dimethylamino ethyl chloride. The Specification as open to inspection under Sect. 91 comprises also a modification in which a reactive ester of N-(2-pyridyl)-N-(p-chlorobenzyl aminoethanol is reacted with dimethylamine. It describes a process in which 2-(p-chloro-benzyl)-aminopyridine is reacted with an a b -dihalogen ethane, a glycol di-aryl (or-alkyl)-sulphonic acid ester or an aryl sulphonic acid-b -halogen ethyl ester and the esterified b -hydroxyethyl group then converted to the b -dimethylamino-ethyl group; and also a process in which a 2-(b -hydroxyethyl)-aminopyridine is first formed from 2-aminopyridine and glycol chlorohydrin and then reacted with a reactive ester of p-chlorobenzyl alcohol. This subject-matter does not appear in the Specification as accepted.
GB21768/48A 1947-08-19 1948-08-18 Manufacture of n-(2-pyridyl)-n-(p-chloro-benzyl)-n:n-dimethyl-ethylenediamine Expired GB651596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH651596X 1947-08-19

Publications (1)

Publication Number Publication Date
GB651596A true GB651596A (en) 1951-04-04

Family

ID=4526153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21768/48A Expired GB651596A (en) 1947-08-19 1948-08-18 Manufacture of n-(2-pyridyl)-n-(p-chloro-benzyl)-n:n-dimethyl-ethylenediamine

Country Status (1)

Country Link
GB (1) GB651596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843595A (en) * 1954-08-12 1958-07-15 Veritas Drug Company Ltd Pyridyl-bromobenzyl-dialkyl diamines
US2952686A (en) * 1954-08-12 1960-09-13 Engelhard Hermann N-(2-pyridyl)-n-p-bromobenzyl-n'-methyl-n'-ethyl-ethylenediamine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843595A (en) * 1954-08-12 1958-07-15 Veritas Drug Company Ltd Pyridyl-bromobenzyl-dialkyl diamines
US2952686A (en) * 1954-08-12 1960-09-13 Engelhard Hermann N-(2-pyridyl)-n-p-bromobenzyl-n'-methyl-n'-ethyl-ethylenediamine

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