Details

Autor(en) / Beteiligte

• Zhou, Wen
• MacLeod, K. Cory
• Patrick, Brian O
• Smith, Kevin M

Titel

Controlling Secondary Alkyl Radicals: Ligand Effects in Chromium-Catalyzed C–P Bond Formation

Ist Teil von

• Organometallics, 2012-11, Vol.31 (21), p.7324-7327

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Chromium cyclopentadienyl β-diketiminate catalysts have been used to form Ph2PCy from Ph2PY (Y = Cl, PPh2, H) and CyX (X = Br, Cl) substrates. Manganese powder activated by PbX2 or Me3SiCl was used as the stoichiometric reductant. The Cr(III) cyclohexyl intermediate has been synthesized and structurally characterized. The observed variations in catalytic activity have been correlated with the previously observed reactivity differences imparted by modifying the N-aryl substituents on the β-diketiminate ancillary ligand.