Alkene Formation With Tert-Butoxide, Hoffmann Elimination Mechanism | Organic Chemistry @OrganicMechanismsChannel

Uploaded February 2021 | Updated September 2026, 1 week ago

The mechanism for the formation of alkenes with potassium tert-butoxide. While this reaction is not the exact reaction of a Hoffmann Elimination reaction, this reaction forms a Hoffmann product in that the less substituted alkene is favored as the major product in this reaction.

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Alkene Formation With Tert-Butoxide, Hoffmann Elimination Mechanism | Organic Chemistry

$Claisen Isoxazole Synthesis Mechanism | Organic Chemistry The mechanism for a Claisen Isoxazole Synthesis which involves the condensation of β-keto esters with hydroxylamine and can occur in two directions to give either isoxazolin-3-ones which exist predominately as 3-hydroxyisoxazoles or isoxazolin-5-ones. Early work by Claisen and others showed that the products from 2-unsubstituted β-keto esters were isoxazolin-5-ones. In the early 1960s, Katritzky found that 2-substituted analogues give 3-hydroxyisozaoles. Jacquier later showed that both types of products could be produced from both types of keto esters depending on the precise pH variation during the reaction work-up. Music: These Days – Infraction$

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