Details

Autor(en) / Beteiligte

• Watanabe, Masataka
• Morais, Goreti Ribeiro
• Mataka, Shuntaro
• Ideta, Keiko
• Thiemann, Thies

Titel

Two Variations of Solvent-Reduced Wittig Olefination Reactions – Comparison of Solventless Wittig Reactions to Wittig Reactions under Ultrasonication with Minimal Work-up [1]

Ist Teil von

• Zeitschrift für Naturforschung. B, A journal of chemical sciences, 2005-08, Vol.60 (8), p.909-915

Ort / Verlag

Verlag der Zeitschrift für Naturforschung

Erscheinungsjahr

2005

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Stabilized and semi-stabilized phosphoranes can be subjected to solventless Wittig reactions with carbaldehydes. Simple heating of a mixture of added components at 100 °C in an electric oven gives the corresponding olefins in good yield. Alternatively, the Wittig reactions can be carried out in a biphasic medium under ultrasonication. In this case, the Wittig products can be isolated by simple evaporation of the organic phase without additional work-up.