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GB1298596A - Benzoxazinones - Google Patents

Benzoxazinones

Info

Publication number
GB1298596A
GB1298596A GB2710672A GB2710672A GB1298596A GB 1298596 A GB1298596 A GB 1298596A GB 2710672 A GB2710672 A GB 2710672A GB 2710672 A GB2710672 A GB 2710672A GB 1298596 A GB1298596 A GB 1298596A
Authority
GB
United Kingdom
Prior art keywords
general formula
hydrogen
haloethyl
benzoxazin
dihydro
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
GB2710672A
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.)
Meda Pharmaceuticals Inc
Original Assignee
Carter Wallace Inc
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
Priority claimed from US4745A external-priority patent/US3598814A/en
Application filed by Carter Wallace Inc filed Critical Carter Wallace Inc
Publication of GB1298596A publication Critical patent/GB1298596A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D265/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
    • C07D265/04—1,3-Oxazines; Hydrogenated 1,3-oxazines
    • C07D265/12—1,3-Oxazines; Hydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems
    • C07D265/14—1,3-Oxazines; Hydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D265/20—1,3-Oxazines; Hydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with hetero atoms directly attached in position 4
    • C07D265/22—Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1298596 2 - (2<SP>1</SP> - Haloethyl) - 2,3 - dihydro- 3 - hydroxy - 4H - 1,3 - benzoxazin - 4 - ones CARTER-WALLACE Inc 13 March 1970 [24 March 1969 21 Jan 1970] 27106/72 Divided out of 1298595 Heading C2C Novel 2 - (2<SP>1</SP> - haloethyl) . 2,3 - dihydro - 3- hydroxy - 4H - 1,3 - benzoxazin . 4 - ones of the general formula wherein each X is a hydrogen or halogen atom or a hydroxyl, C 1-6 alkyl, C 1-6 alkoxy, nitro, amino, acetamido, sulphonamido or trifluoromethyl group, n is 1 or 2, each of R<SP>1</SP> and R<SP>2</SP> is a hydrogen atom or C 1-6 alkyl group and Y is a halogen atom, are prepared by reaction of a salicylhydroxamic acid of the general formula with an acrolein of the general formula or an acetal thereof, in the presence of a hydrogen halide.
GB2710672A 1969-03-24 1970-03-13 Benzoxazinones Expired GB1298596A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82673869A 1969-03-24 1969-03-24
US4745A US3598814A (en) 1970-01-21 1970-01-21 3,3a-dihydro-2h,9h-isoxazolo(3,2-b)(1,3) benzoxazin-9-ones

Publications (1)

Publication Number Publication Date
GB1298596A true GB1298596A (en) 1972-12-06

Family

ID=26673406

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1224870A Expired GB1298595A (en) 1969-03-24 1970-03-13 Isoxazolobenzoxazine derivatives
GB2710672A Expired GB1298596A (en) 1969-03-24 1970-03-13 Benzoxazinones

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1224870A Expired GB1298595A (en) 1969-03-24 1970-03-13 Isoxazolobenzoxazine derivatives

Country Status (11)

Country Link
JP (1) JPS4940240B1 (en)
AT (1) AT303051B (en)
CH (1) CH514619A (en)
DE (1) DE2010418A1 (en)
DK (1) DK125859B (en)
ES (1) ES377858A1 (en)
FI (1) FI50531C (en)
GB (2) GB1298595A (en)
NL (1) NL170631C (en)
NO (1) NO130480C (en)
SE (1) SE343869B (en)

Also Published As

Publication number Publication date
SE343869B (en) 1972-03-20
NL170631C (en) 1982-12-01
NO130480B (en) 1974-09-09
NO130480C (en) 1974-12-18
JPS4940240B1 (en) 1974-10-31
FI50531C (en) 1976-04-12
DE2010418A1 (en) 1970-10-01
ES377858A1 (en) 1972-11-01
DK125859B (en) 1973-05-14
GB1298595A (en) 1972-12-06
AT303051B (en) 1972-11-10
FI50531B (en) 1975-12-31
CH514619A (en) 1971-10-31
NL7003942A (en) 1970-09-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee