About the Reaction of BeCl2 with the Carbodiphosphorane Addition Compound O2C <- C(PPh3)(2) and its Hydrolysis Product Ph3PCHP(O)Ph-2

作者：Petz Wolfgang^*; Dehnicke Kurt; Neumueller Bernhard

来源：Zeitschrift fur Anorganische und Allgemeine Chemie, 2011, 637(12): 1761-1768.

DOI：10.1002/zaac.201100293

• Beryllium
• X-ray diffraction
• Ylides
• Carbodiphosphorane adducts
• (BeO)(5) ring

Reaction of BeCl2 and (PPh4)[Be2Cl6] with Ph3PCHP(O)Ph-2 (2) and of BeCl2 with O2C <- C(PPh3)(2) (3) were studied under various conditions. Whereas the addition compound of 2 with BeCl2 could only traced by P-31 NMR spectroscopy the molecular structure of the O-addition compound [Ph3PCH2P(OBeCl3)Ph-2]center dot 0.75CH(2)Cl(2) (5) from 2 and (PPh4)[Be2Cl6] could be performed. From 3 and BeCl2 in dichloromethane crystals of (H2C{PPh3}(2))[BeCl4] (6) and (H2C{PPh3}(2))Cl-2 center dot CH2Cl2 (7) separated. The cluster [Be-6(OH)(6)Cl-5(O2C2{PPh3}(2))(3)]Cl (8) formed upon unintentionally admitting some humidity to the initial reaction mixture. In 8 each of the bidentate ligands 3 bridges two different beryllium atoms via the oxygen atoms. All compounds are characterized by X-ray diffraction analyses.

• 出版日期2011-10