Matches in SemOpenAlex for { <https://semopenalex.org/work/W2005348178> ?p ?o ?g. }
Showing items 1 to 54 of
54
with 100 items per page.
- W2005348178 abstract "Aliphatische Dithiocarbonsauren wie Dithioethansaure (1a), Dithiopropansaure (10a) oder 2-Methyl-dithiopropansaure (10e) bilden mit 2 mol n-BuLi die entspr. Dilithium-dithioenolate 2a, 11a oder 11e. Diese addieren an Aldehyde oder Ketone zu den Aldolprodukten 3a-f und 12a-e. Daraus entstehen durch Methylierung mit Methyliodid die stabileren β-Hydroxydithioester 4 und 13. Die Ester 4 lassen sich zu den α,β-ungesattigten Dithioestern 5 dehydrieren. Die Addition des Dilithium-dithioenolates 2a an Methylvinylketon, Cyclohexenon oder Cyclopentenon mit nachfolgender Methylierung liefert die δ,e-ungesattigten Dithioester 6–8.Dithio and Thiono Esters, LX: Addition of Dithioic Acid Dianions to Aldehydes and KetonesAliphatic dithiocarboxylic acids such as dithioethanoic acid (1a), dithiopropanoic acid (10a) or 2-methyl-dithiopropanoic acid (10e) react with 2 moles of n-BuLi to form the corresponding dilithium dithioenolates 2a, 11a or 11e. These add to aldehydes and ketones to give the aldol adducts 3a-f and 12a-e. Methylation with methyl iodide leads to the more stable β-hydroxy dithioesters 4 and 13. The esters 4 have been dehydrated to yield the α,β-unsaturated dithioesters 5. Addition of the dilithium dithioenolate 2a to methylvinyl ketone, cyclohexenone or cyclopentenone followed by methylation gives rise to the δ,e-unsaturated dithioesters 6–8." @default.
- W2005348178 created "2016-06-24" @default.
- W2005348178 creator A5059145458 @default.
- W2005348178 creator A5079834570 @default.
- W2005348178 creator A5083975227 @default.
- W2005348178 date "1993-01-01" @default.
- W2005348178 modified "2023-09-24" @default.
- W2005348178 title "Dithio- und Thionester, 60. Mitt.: Addition von Dithiocarbonsäure-dianionen an Aldehyde und Ketone" @default.
- W2005348178 cites W1994312656 @default.
- W2005348178 cites W2021010208 @default.
- W2005348178 cites W2098892021 @default.
- W2005348178 cites W2141348501 @default.
- W2005348178 cites W2950228690 @default.
- W2005348178 cites W4249119517 @default.
- W2005348178 doi "https://doi.org/10.1002/ardp.19933261212" @default.
- W2005348178 hasPublicationYear "1993" @default.
- W2005348178 type Work @default.
- W2005348178 sameAs 2005348178 @default.
- W2005348178 citedByCount "2" @default.
- W2005348178 crossrefType "journal-article" @default.
- W2005348178 hasAuthorship W2005348178A5059145458 @default.
- W2005348178 hasAuthorship W2005348178A5079834570 @default.
- W2005348178 hasAuthorship W2005348178A5083975227 @default.
- W2005348178 hasConcept C108204754 @default.
- W2005348178 hasConcept C118629725 @default.
- W2005348178 hasConcept C145148216 @default.
- W2005348178 hasConcept C155647269 @default.
- W2005348178 hasConcept C161790260 @default.
- W2005348178 hasConcept C178790620 @default.
- W2005348178 hasConcept C185592680 @default.
- W2005348178 hasConcept C2775951159 @default.
- W2005348178 hasConcept C2777738585 @default.
- W2005348178 hasConcept C2779825165 @default.
- W2005348178 hasConcept C2780073701 @default.
- W2005348178 hasConcept C2908682898 @default.
- W2005348178 hasConceptScore W2005348178C108204754 @default.
- W2005348178 hasConceptScore W2005348178C118629725 @default.
- W2005348178 hasConceptScore W2005348178C145148216 @default.
- W2005348178 hasConceptScore W2005348178C155647269 @default.
- W2005348178 hasConceptScore W2005348178C161790260 @default.
- W2005348178 hasConceptScore W2005348178C178790620 @default.
- W2005348178 hasConceptScore W2005348178C185592680 @default.
- W2005348178 hasConceptScore W2005348178C2775951159 @default.
- W2005348178 hasConceptScore W2005348178C2777738585 @default.
- W2005348178 hasConceptScore W2005348178C2779825165 @default.
- W2005348178 hasConceptScore W2005348178C2780073701 @default.
- W2005348178 hasConceptScore W2005348178C2908682898 @default.
- W2005348178 hasLocation W20053481781 @default.
- W2005348178 hasOpenAccess W2005348178 @default.
- W2005348178 hasPrimaryLocation W20053481781 @default.
- W2005348178 isParatext "false" @default.
- W2005348178 isRetracted "false" @default.
- W2005348178 magId "2005348178" @default.
- W2005348178 workType "article" @default.