GB1258033A - - Google Patents

Info

Publication number
GB1258033A
GB1258033A GB1258033DA GB1258033A GB 1258033 A GB1258033 A GB 1258033A GB 1258033D A GB1258033D A GB 1258033DA GB 1258033 A GB1258033 A GB 1258033A
Authority
GB
United Kingdom
Prior art keywords
diketene
haloacetyl
pyrans
halomethyl
lonza
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
Other languages
English (en)
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 filed Critical
Publication of GB1258033A publication Critical patent/GB1258033A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
GB1258033D 1969-05-29 1970-05-27 Expired GB1258033A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH810869A CH514573A (de) 1969-05-29 1969-05-29 Verfahren zur Herstellung von 3-Halogenacetyl-6-halogenmethyl-2,4-dioxo-2,3-dihydro-4-H-pyran

Publications (1)

Publication Number Publication Date
GB1258033A true GB1258033A (fi) 1971-12-22

Family

ID=4335282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258033D Expired GB1258033A (fi) 1969-05-29 1970-05-27

Country Status (5)

Country Link
CH (1) CH514573A (fi)
DE (1) DE2025572A1 (fi)
FR (1) FR2043794A1 (fi)
GB (1) GB1258033A (fi)
NL (1) NL7007664A (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006235A1 (en) * 1991-09-20 1993-04-01 Zeneca Limited Process for the preparation of enantiomerically pure 4-hydroxytetrahydro-2-pyranone derivatives
US6509299B2 (en) 2001-06-08 2003-01-21 Sumitomo Chemical Company, Limited Pyrone compounds and there use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006235A1 (en) * 1991-09-20 1993-04-01 Zeneca Limited Process for the preparation of enantiomerically pure 4-hydroxytetrahydro-2-pyranone derivatives
US5443970A (en) * 1991-09-20 1995-08-22 Zeneca Limited Pyranones
US6509299B2 (en) 2001-06-08 2003-01-21 Sumitomo Chemical Company, Limited Pyrone compounds and there use
ES2200689A1 (es) * 2001-06-08 2004-03-01 Sumitomo Chemical Co Compuestos de pirona y su uso.

Also Published As

Publication number Publication date
NL7007664A (fi) 1970-12-01
CH514573A (de) 1971-10-31
DE2025572A1 (de) 1970-12-03
FR2043794A1 (fi) 1971-02-19

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Legal Events

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