GB1220202A - Pyridine derivatives and intermediates and processes therefor - Google Patents
Pyridine derivatives and intermediates and processes thereforInfo
- Publication number
- GB1220202A GB1220202A GB470D GB470D GB1220202A GB 1220202 A GB1220202 A GB 1220202A GB 470 D GB470 D GB 470D GB 470 D GB470 D GB 470D GB 1220202 A GB1220202 A GB 1220202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compounds
- prepared
- pyridine derivatives
- novel compounds
- feb
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/08—Bridged systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/68—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D211/70—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/80—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D211/82—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members 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
- C07D309/10—Oxygen atoms
- C07D309/12—Oxygen atoms only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
1,220,202. Pyridine derivatives. BEECHAM GROUP Ltd. 7 Feb., 1969 [23 Feb., 1968], No. 4/70. Divided out of 1,220,201. Heading C2C. Novel compounds of Formula I in which R 1 is H or 1-6C alkyl; R 2 is H or an optionally acylated hydrocarbon radical; R 3 is H or an optionally substituted aliphatic or araliphatic radical and X is H, OH, or esterified or etherified OH are prepared from novel compounds II in which R 4 is the residue of an ether group and Y is H, OH or OR 4 by removal of R 4 by known methods. Compounds II are prepared by partial hydrogenation of novel compounds III. Compounds III are prepared by reaction of compounds IV with compounds V in which R<SP>111</SP> 2 is a group selected from R 2 and capable of forming part of a quaternary salt and A 1 - is an anion. The dotted lines in the above formulµ represent a double bond in either the 3 or 4 position of the tetrahydropyridine ring. Intermediates isolated are 2-(p-tolyloxy) tetrahydropyran and 6 - (tetrahydro - 2 - pyranyloxy)- o-cresol prepared from the appropriate phenolic compound and dihydropyran.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70744868A | 1968-02-23 | 1968-02-23 | |
GB665269A GB1220201A (en) | 1968-02-23 | 1969-02-07 | Organic compounds based upon benzoxazocines and intermediates and processes therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1220202A true GB1220202A (en) | 1971-01-20 |
Family
ID=26240852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB470D Expired GB1220202A (en) | 1968-02-23 | 1969-02-07 | Pyridine derivatives and intermediates and processes therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1220202A (en) |
-
1969
- 1969-02-07 GB GB470D patent/GB1220202A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |