Triphosphine macrocycle, synthesis

A Novel Metal-Template Synthesis of Triphosphine Macrocycles... 

The basic pathways for the synthesis of phosphorus-containing macrocyclic substances are high dilution techniques and template reactions. The use of the template route enables the assembly of the triphosphine macrocyclic ligand L8, obtained as its complex with tricarbonylmolybdenum [3]. Cyclooligomerisations of molybdenum-coordinated alkenylphosphines [3] were also investigated [2], The synthesis of (CO)3Mo(L8) and (CO)3Mo(L1199) was carried out in 70-85% yield in a manner similar to that described earlier (Eq. 5.1) [3]. 

Diel BN, Brandt PF, Haltiwanger RC et al (1982) Metal-templated synthesis of a macrocyclic triphosphine-molybdenum complex,/ac-(CO)3Mo(PHC3H6)3. J Am Chem Soc 104 4700-4701... 

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