GB2272219B - Process for the preparation of isopropylidene-malonic esters - Google Patents

Process for the preparation of isopropylidene-malonic esters

Info

Publication number
GB2272219B
GB2272219B GB9321715A GB9321715A GB2272219B GB 2272219 B GB2272219 B GB 2272219B GB 9321715 A GB9321715 A GB 9321715A GB 9321715 A GB9321715 A GB 9321715A GB 2272219 B GB2272219 B GB 2272219B
Authority
GB
United Kingdom
Prior art keywords
isopropylidene
preparation
malonic esters
malonic
esters
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 - Fee Related
Application number
GB9321715A
Other versions
GB2272219A (en
GB9321715D0 (en
Inventor
Marcus Bongen
Itter Franz-Albert Von
Marcel Feld
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.)
Huels AG
Original Assignee
Huels AG
Chemische Werke Huels 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 Huels AG, Chemische Werke Huels AG filed Critical Huels AG
Publication of GB9321715D0 publication Critical patent/GB9321715D0/en
Publication of GB2272219A publication Critical patent/GB2272219A/en
Application granted granted Critical
Publication of GB2272219B publication Critical patent/GB2272219B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
GB9321715A 1992-11-10 1993-10-21 Process for the preparation of isopropylidene-malonic esters Expired - Fee Related GB2272219B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924237897 DE4237897A1 (en) 1992-11-10 1992-11-10 Process for the preparation of isopropylidene dialkylmalonic ester

Publications (3)

Publication Number Publication Date
GB9321715D0 GB9321715D0 (en) 1993-12-15
GB2272219A GB2272219A (en) 1994-05-11
GB2272219B true GB2272219B (en) 1996-04-03

Family

ID=6472510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9321715A Expired - Fee Related GB2272219B (en) 1992-11-10 1993-10-21 Process for the preparation of isopropylidene-malonic esters

Country Status (2)

Country Link
DE (1) DE4237897A1 (en)
GB (1) GB2272219B (en)

Also Published As

Publication number Publication date
GB2272219A (en) 1994-05-11
DE4237897A1 (en) 1994-05-11
GB9321715D0 (en) 1993-12-15

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031021