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Reaktionen OCII / ETHZ 4. Semester

Discover Reaktionen OCII / ETHZ 4. Semester: 202 flashcards with questions and answers.

Subject
Sciences / Chemistry
Language of creation
German
202 flashcards No ratings yet 0 views
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Cards in this set

Card 181

Question

Answer

Bildung von Epoxiden aus Olefinen (mCPBA = meta-chloroperbenzoic acid)

Card 182

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Answer

Nucleophile Öffnung von Epoxiden

Stereochemie beachten! ==> ACOC II 

Card 183

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Answer

Entschützung der Fmoc-PG geht nur unter basischen Bedingungen (Hier mit Piperidin)

Card 184

Question

Answer

Hofmann Rearrangement (Vom Amid zum Amin) 

Mechanismus: Isocyanat-Intermediat, dann workup mit Wasser und base. Dies decarboxyliert die Verbindung und das Amin bleibt übrig.

Card 185

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Answer

Hydroformylation Reaction

Card 186

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Answer

Hydrogenation of Olefins 

Card 187

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Reduktion von Nitroverbindungen zuu Aminen

Card 188

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Prinzipielles Schema der Olefin Metathese

Card 189

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Olfein Metathese, katalsiert durch Grubbs-II. Als Nebenprodukt entsteht Ethen-Gas 

Card 190

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Reductive Amination

Card 191

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Reppe-Carbonylation

Card 192

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Entschützung eines Sylil-Ethers durch Säure. Dies funktioniert nur bei kleinen, nicht-steirischen Silyl-Substituenten. Sind sie gross muss man TBAF nehmen. (TBAF = Tert-Butylammoniumfluorid) 

Card 193

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Entschützung eines Silylethers mit TBAF

Card 194

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Tsuji-Wacker Oxidation

 

Card 195

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Hydorboration of an Olefin with subsequent treatment with Base and Hydrogen Peroxide yields an Anti-Markovnikow alcohol, which can be oxizied.

Card 196

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Organoselenium compounds can be converted to olefins

Application: Michael-Acceptors

Card 197

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Wacker Oxidation

Card 198

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Bildung von Weinreb Amiden aus Estern

Card 199

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Wittig Olefination of a carbonyl group yields an olefin.

Card 200

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Baeyer-Villiger Oxidation. Oxidert Ketone zu Estern. Es muss nicht spezifisch mCPBA verwendet werden, andere Persäuren gehen auch.

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