Matches in SemOpenAlex for { <https://semopenalex.org/work/W2056568352> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W2056568352 endingPage "1125" @default.
- W2056568352 startingPage "1115" @default.
- W2056568352 abstract "α-Ketosäuren können anstelle von Aldehyden in die Thiazoliumsalz-katalysierte Addition an Vinylketone eingesetzt werden. So entstehen die γ-Diketone 1–7 aus den α-Ketosäuren der aliphatischen Reihe in Ausbeuten, die der Aldehydaddition entsprechen. Aus den gut zugänglichen 2-Oxodisäuren werden die Diketosäuren 9–19 erhalten. Phenylbrenztraubensäuren sind besser als Phenylacetaldehyde zu synthetisieren und liefern in der Addition an Vinylketone zu den γ-Diketonen 20–29 bessere Ausbeuten. Diese Diketone wurden in Cyclopentenone übergeführt. Aus dem Dihydrofurylglyoxylsäure-ethylester 40 kann das Diketon 43 und daraus das Diketon 44, erhalten werden, ein entsprechender Aldehyd ist nicht bekannt. Addition of Aldehydes to Activated Double Bonds, XXXV. α-Keto Acids as an Equivalent for Aldehydes in the Thiazolium Salt-Catalyzed Addition α-Keto acids can be used instead of aldehydes in the thiazolium salt-catalyzed addition to vinyl ketones. The yields of γ-diketones 1–7 resulting from the aliphatic α-keto acids are equivalent with those obtained from the aldehydes. The diketo acids 9–19 are prepared from the easily accessible 2-oxodiacids. Phenylpyruvic acids are easier to prepare than the phenylacetalehydes and give better yields compared with the corresponding aldehydes in the addition to vinyl ketones leading to the γ-diketones 20–29. These diketones are converted to cyclopentenones. The dihydrofurylglyoxylic ester 40 leads to the diketone 43, which is converted to the diketone 44. There is no aldehyde known equivalent to that keto acid." @default.
- W2056568352 created "2016-06-24" @default.
- W2056568352 creator A5076254444 @default.
- W2056568352 creator A5089192657 @default.
- W2056568352 date "1985-03-01" @default.
- W2056568352 modified "2023-10-09" @default.
- W2056568352 title "Addition von Aldehyden an aktivierte Doppelbindungen, XXXV. α‐Ketosäuren als Äquivalent für Aldehyde in der Thiazoliumsalz‐katalysierten Addition" @default.
- W2056568352 cites W1604445670 @default.
- W2056568352 cites W1975525681 @default.
- W2056568352 cites W1976223590 @default.
- W2056568352 cites W1976490166 @default.
- W2056568352 cites W1978251298 @default.
- W2056568352 cites W1979086016 @default.
- W2056568352 cites W1997588273 @default.
- W2056568352 cites W1999677456 @default.
- W2056568352 cites W2000368738 @default.
- W2056568352 cites W2007649679 @default.
- W2056568352 cites W2020892005 @default.
- W2056568352 cites W2044609493 @default.
- W2056568352 cites W2077250079 @default.
- W2056568352 cites W2078617729 @default.
- W2056568352 cites W2084282870 @default.
- W2056568352 cites W2129274631 @default.
- W2056568352 cites W2129706738 @default.
- W2056568352 cites W2319839583 @default.
- W2056568352 cites W2320163706 @default.
- W2056568352 cites W2329040710 @default.
- W2056568352 cites W2333825439 @default.
- W2056568352 cites W2334413002 @default.
- W2056568352 cites W2334473991 @default.
- W2056568352 cites W2949530652 @default.
- W2056568352 cites W4254735557 @default.
- W2056568352 doi "https://doi.org/10.1002/cber.19851180328" @default.
- W2056568352 hasPublicationYear "1985" @default.
- W2056568352 type Work @default.
- W2056568352 sameAs 2056568352 @default.
- W2056568352 citedByCount "28" @default.
- W2056568352 countsByYear W20565683522012 @default.
- W2056568352 countsByYear W20565683522016 @default.
- W2056568352 countsByYear W20565683522017 @default.
- W2056568352 countsByYear W20565683522018 @default.
- W2056568352 crossrefType "journal-article" @default.
- W2056568352 hasAuthorship W2056568352A5076254444 @default.
- W2056568352 hasAuthorship W2056568352A5089192657 @default.
- W2056568352 hasConcept C155647269 @default.
- W2056568352 hasConcept C161790260 @default.
- W2056568352 hasConcept C178790620 @default.
- W2056568352 hasConcept C185592680 @default.
- W2056568352 hasConcept C2776371256 @default.
- W2056568352 hasConcept C2777934754 @default.
- W2056568352 hasConcept C2779825165 @default.
- W2056568352 hasConceptScore W2056568352C155647269 @default.
- W2056568352 hasConceptScore W2056568352C161790260 @default.
- W2056568352 hasConceptScore W2056568352C178790620 @default.
- W2056568352 hasConceptScore W2056568352C185592680 @default.
- W2056568352 hasConceptScore W2056568352C2776371256 @default.
- W2056568352 hasConceptScore W2056568352C2777934754 @default.
- W2056568352 hasConceptScore W2056568352C2779825165 @default.
- W2056568352 hasIssue "3" @default.
- W2056568352 hasLocation W20565683521 @default.
- W2056568352 hasOpenAccess W2056568352 @default.
- W2056568352 hasPrimaryLocation W20565683521 @default.
- W2056568352 hasRelatedWork W1971184029 @default.
- W2056568352 hasRelatedWork W2026999966 @default.
- W2056568352 hasRelatedWork W2048852237 @default.
- W2056568352 hasRelatedWork W2072973972 @default.
- W2056568352 hasRelatedWork W2109515222 @default.
- W2056568352 hasRelatedWork W2183310312 @default.
- W2056568352 hasRelatedWork W2951620077 @default.
- W2056568352 hasRelatedWork W2970161806 @default.
- W2056568352 hasRelatedWork W4254664664 @default.
- W2056568352 hasRelatedWork W2521962611 @default.
- W2056568352 hasVolume "118" @default.
- W2056568352 isParatext "false" @default.
- W2056568352 isRetracted "false" @default.
- W2056568352 magId "2056568352" @default.
- W2056568352 workType "article" @default.