Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen Heterocyclen, LXXIX. Synthese eines Diphosphamanganacyclopentens durch Alkin–Insertion in die Mn–P–Bindung eines Diphosphamanganacyclopropans

Metal–Containing Heterocycles: Preparation, Properties and Reactions, LXXIX [1a] . – Synthesis of a Diphosphamangana–cyclopentene by Alkyne Insertion into the Mn–P Bond of a Diphosphamanganacyclopropane Insertion of the alkyne ZCCZ with ZCO 2 Me into the Mn–P bond of the diphosphamanganacyclopropane results in the formation of the thermally and kinetically stable diphosphamanganacyclopentene ( 2 ). According to an X–ray structural analysis 2 crystallizes in the orthorhombic space group P2 1 2 1 2 1 with Z 4.