GB592283A - A process for the manufacture of (ª‰:ª‰:ª‰-trihalogeno-ethylidene)-ether esters of ª‰-substituted pyruvic acids - Google Patents
A process for the manufacture of (ª‰:ª‰:ª‰-trihalogeno-ethylidene)-ether esters of ª‰-substituted pyruvic acidsInfo
- Publication number
- GB592283A GB592283A GB999845A GB999845A GB592283A GB 592283 A GB592283 A GB 592283A GB 999845 A GB999845 A GB 999845A GB 999845 A GB999845 A GB 999845A GB 592283 A GB592283 A GB 592283A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substituted
- pyruvic acid
- trihalogeno
- ethylidene
- manufacture
- 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
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Natural products CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 title abstract 5
- 150000004717 pyruvic acids Chemical class 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229940107700 Pyruvic Acid Drugs 0.000 abstract 3
- HFFLGKNGCAIQMO-UHFFFAOYSA-N Chloral Chemical compound ClC(Cl)(Cl)C=O HFFLGKNGCAIQMO-UHFFFAOYSA-N 0.000 abstract 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- -1 ether ester Chemical class 0.000 abstract 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 2
- 150000001299 aldehydes Chemical class 0.000 abstract 1
- 125000002723 alicyclic group Chemical group 0.000 abstract 1
- 125000005907 alkyl ester group Chemical class 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 125000001624 naphthyl group Chemical group 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/32—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings 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
- C07D317/34—Oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
b 1:b 1:b 1-Trihalogenethylidene-ether esters of a b -substituted pyruvic acid of the formula <FORM:0592283/IV/1> are prepared by heating the b -substituted pyruvic acid or alkyl ester thereof with an aldehyde of the formula CHO-CX3, wherein X is chlorine or bromine and R is a tertiary alkyl radical, an alicyclic radicle or a phenyl or naphthyl group which may be substituted. In the examples: (1) ethyl b -tertiary valerylpyruvate and chloral are reacted together to give the b 1:b 1:b 1-trichlorethylidene ether ester of b -tertiary pyruvic acid; (2) ethyl b -(p-chlorobenzoyl)-pyruvate and chloral are reacted to give the same ether ester of b -(p-chlorobenzoyl)-pyruvic acid. Specification 588,108 is referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB592283A true GB592283A (en) | 1947-09-12 |
Family
ID=1630092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB999845A Expired GB592283A (en) | 1945-04-20 | A process for the manufacture of (ª‰:ª‰:ª‰-trihalogeno-ethylidene)-ether esters of ª‰-substituted pyruvic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB592283A (en) |
-
1945
- 1945-04-20 GB GB999845A patent/GB592283A/en not_active Expired
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