Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007851605> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W2007851605 endingPage "967" @default.
- W2007851605 startingPage "959" @default.
- W2007851605 abstract "Die Additionsprodukte 9–12 von Trialkylsilylcyanid an konjugiert ungesättigte Aldehyde reagieren als Anionen 9A-12A ausschließlich in α-Stellung mit Ketonen und Aldehyden, jeweils unter 1,4-O,O-Silylwanderung (13,15,18,19). Die Bildung von 2:1-Addukten (20 aus 9A und Pivalinaldehyd) kann durch die langsamer wandernde Triethylsilylgruppe unterdrückt werden (12A→23). 9A addiert sich an Mesityloxid in THF in 1,2-Stellung zu 24, in Ether jedoch in 1,4-Stellung zu 25. Michael-Additionen an α,β-ungesättigte Ester gelingen ebenfalls, wobei der Halogenester 38 zum Cyclopropan 40 weiterreagiert. Vergleichbare literaturbekannte Methoden werden diskutiert. Trimethylsilyl Cyanide - A Reagent for Umpolung, VII. Nucleophilic Acylation of Carbonyl Compounds with α,β-Unsaturated Aldehydes The addition products 9–12 of trialkylsilyl cyanide with conjugated aldehydes react as their aminons 9A-12A exclusively in the α-position with ketones and aldehydes, accompanied by a 1,4-O, O-silyl rearrangement (13,15,18,19). The formation of 2:1 adducts (20 from 9A and pivalic aldehyde) can be supressed by the slower rearranging triethylsilyl group (12A→23). With 9A and mesityloxide 1,2-addition occurs in THF (24, however, 1,4-addition in ether (25). Michaeladdition to α, β-unsaturated esters is possible also. Here, the halo ester 38 yields the cyclopropane 40. Similar methods from the literature are discussed." @default.
- W2007851605 created "2016-06-24" @default.
- W2007851605 creator A5001566501 @default.
- W2007851605 creator A5031466113 @default.
- W2007851605 date "1981-03-01" @default.
- W2007851605 modified "2023-10-15" @default.
- W2007851605 title "Trimethylsilycyanid als Umpolungsreagens, VII. Nucleophile Acylierung von Carbonylverbindungen mit α,β‐ungesättigten Aldehyden" @default.
- W2007851605 cites W1971958243 @default.
- W2007851605 cites W1989765667 @default.
- W2007851605 cites W1998561792 @default.
- W2007851605 cites W1999809839 @default.
- W2007851605 cites W2003222067 @default.
- W2007851605 cites W2004457587 @default.
- W2007851605 cites W2025820450 @default.
- W2007851605 cites W2030755643 @default.
- W2007851605 cites W2036835878 @default.
- W2007851605 cites W2037103400 @default.
- W2007851605 cites W2054000159 @default.
- W2007851605 cites W2077065089 @default.
- W2007851605 cites W2077250079 @default.
- W2007851605 cites W2084282870 @default.
- W2007851605 cites W2125109440 @default.
- W2007851605 cites W2327742660 @default.
- W2007851605 cites W2950734273 @default.
- W2007851605 cites W2952426017 @default.
- W2007851605 cites W2981096707 @default.
- W2007851605 cites W4251244647 @default.
- W2007851605 doi "https://doi.org/10.1002/cber.19811140313" @default.
- W2007851605 hasPublicationYear "1981" @default.
- W2007851605 type Work @default.
- W2007851605 sameAs 2007851605 @default.
- W2007851605 citedByCount "29" @default.
- W2007851605 countsByYear W20078516052014 @default.
- W2007851605 crossrefType "journal-article" @default.
- W2007851605 hasAuthorship W2007851605A5001566501 @default.
- W2007851605 hasAuthorship W2007851605A5031466113 @default.
- W2007851605 hasConcept C155647269 @default.
- W2007851605 hasConcept C161790260 @default.
- W2007851605 hasConcept C178790620 @default.
- W2007851605 hasConcept C178907741 @default.
- W2007851605 hasConcept C185592680 @default.
- W2007851605 hasConcept C2777738585 @default.
- W2007851605 hasConcept C2777775765 @default.
- W2007851605 hasConcept C2779692420 @default.
- W2007851605 hasConcept C2779825165 @default.
- W2007851605 hasConcept C40875361 @default.
- W2007851605 hasConcept C71240020 @default.
- W2007851605 hasConceptScore W2007851605C155647269 @default.
- W2007851605 hasConceptScore W2007851605C161790260 @default.
- W2007851605 hasConceptScore W2007851605C178790620 @default.
- W2007851605 hasConceptScore W2007851605C178907741 @default.
- W2007851605 hasConceptScore W2007851605C185592680 @default.
- W2007851605 hasConceptScore W2007851605C2777738585 @default.
- W2007851605 hasConceptScore W2007851605C2777775765 @default.
- W2007851605 hasConceptScore W2007851605C2779692420 @default.
- W2007851605 hasConceptScore W2007851605C2779825165 @default.
- W2007851605 hasConceptScore W2007851605C40875361 @default.
- W2007851605 hasConceptScore W2007851605C71240020 @default.
- W2007851605 hasIssue "3" @default.
- W2007851605 hasLocation W20078516051 @default.
- W2007851605 hasOpenAccess W2007851605 @default.
- W2007851605 hasPrimaryLocation W20078516051 @default.
- W2007851605 hasRelatedWork W2017768023 @default.
- W2007851605 hasRelatedWork W2085733584 @default.
- W2007851605 hasRelatedWork W2138992409 @default.
- W2007851605 hasRelatedWork W2357367504 @default.
- W2007851605 hasRelatedWork W2385345291 @default.
- W2007851605 hasRelatedWork W2389710854 @default.
- W2007851605 hasRelatedWork W2394255112 @default.
- W2007851605 hasRelatedWork W2397444425 @default.
- W2007851605 hasRelatedWork W2949147386 @default.
- W2007851605 hasRelatedWork W757487998 @default.
- W2007851605 hasVolume "114" @default.
- W2007851605 isParatext "false" @default.
- W2007851605 isRetracted "false" @default.
- W2007851605 magId "2007851605" @default.
- W2007851605 workType "article" @default.