Details

Autor(en) / Beteiligte

• Heinz Karsch, Hans
• Hanika, Gerhard
• Huber, Brigitte
• Riede, Jürgen
• Müller, Gerhard

Titel

Monomere Phosphinoborane: Synthese eines Tetraalkylphosphinoborans und seine Umwandlung unter Retro- und Re-hydroborierung zu einem dimeren Phosphinoboran sowie Synthese eines Triphosphinoborans

Ist Teil von

• Journal of organometallic chemistry, 1989-02, Vol.361 (2), p.C25-C29

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

1989

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• The first monomeric tetralakylphosphinoborane tBu 2BP tBu 2 was synthesized from tBu 2BBr and LiP tBu 2. It decomposes above −20°C via double retro-hydroboration and elimination of isobutene, undergoes subsequent re-hydroboration and dimerisation to give stable bis(phosphinoborane)[ iBu(H)BP tBu 2] 2, whose molecular structure was determined by X-ray diffraction. It contains a planar, almost square (BP) 2 four-membered ring. The BP distances are 2.004(4)/2.022(4) Å. The first monomeric triphosphinoborane, Me 2PB(PMes 2) 2, was synthesized similarly. All compounds have been characterized by NMR spectroscopy.