Derivate und Koordinationsverbindungen des Triphenylphosphoniumcyclopropylids (C6H5)3P =C(CH2)2 / Derivatives and Coordination Compounds of Triphenylphosphonium Cyclopropylide (C6H5)3P =C(CH2)2

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Abstract
Triphenylphosphonium cyclopropylide is converted into the corresponding 1-H- or 1-D-cyclopropylphosphonium bromide in the reaction with HBr or DBr, respectively. With methyl iodide, the 1-methyl-cyclopropylphosphonium iodide is generated. Addition of BH3 (as THF - BH3) yields trihydrido-(1-triplienylphosphoniocyclopropyl)borate - (CH3)3Al and (C2H5)3Ga also give 1:1 adducts, the metal center being attached again to C-1 of the cyclopropyl ring. - Complexes of AuCl, however, are easily transformed into ionic 1:2 complexes, irrespective of the ratio of the reactants employed. Au(I) is twocoordinate in those complexes with two intact cyclopropylides as the sole ligands. - NMR data of all the new materials are presented

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