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Dimers heterocyclic cores

All the P-As and P=As bonded compounds are sensitive to hydrolysis and to oxidation by air. The reaction of Cp As=PMes with diazomethane adds a CH2 group across the double bond and yields the three-membered heterocyclic phosphaarsirane Cp AsCH2PMes. Sulfur and selenium add across the double bond to form three-membered heterocycles.Dimerization of Cp As=PCp produces two isomeric diphosphadiarsetanes, one containing the P-P-As-As and the other the P-As-P-As core. Photolysis of Cp As=PMes, Cp P=AsMes, and (2,4,6-r-Bu3C6H2)P=AsCp yields the diarsadiphosphacyclo-butanes. Metal complexes of several of the P=As compounds have been prepared and characterized. ... [Pg.261]

See other pages where Dimers heterocyclic cores is mentioned: [Pg.146]    [Pg.5]    [Pg.207]    [Pg.3520]    [Pg.3519]    [Pg.2021]    [Pg.784]    [Pg.98]    [Pg.361]    [Pg.74]    [Pg.100]    [Pg.101]    [Pg.105]    [Pg.108]    [Pg.108]    [Pg.578]    [Pg.1362]    [Pg.143]    [Pg.262]    [Pg.914]    [Pg.316]    [Pg.784]    [Pg.268]    [Pg.268]    [Pg.3201]    [Pg.98]    [Pg.151]    [Pg.93]    [Pg.44]    [Pg.112]    [Pg.74]    [Pg.315]    [Pg.54]    [Pg.432]   
See also in sourсe #XX -- [ Pg.2 ]

See also in sourсe #XX -- [ Pg.2 , Pg.725 ]



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Dimerization heterocycles

Heterocyclic Cores

Heterocyclic dimers

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