tri-iso-propyl phosphine in cyclohexane Kinetics; byproducts: 1,1-dimethylcyclopropane, neopentane; heated at 126.5°C in vac.;

sodium amalgam in tetrahydrofuran byproducts: NaCl; under N2 atm. (i-Pr3P)2PtCl2 was dissolved in THF and sodium amalgam wasadded and stirred for 3 days; soln. was filtered and evapd. in vacuo, pentane was added, soln. was filtered and concd. to dryness;

sodium naphthalenide in tetrahydrofuran byproducts: NaCl; (Ar, Schlenk) a soln. of sodium naphthalenide in THF was added dropwise to the suspn. of Pt-complex and phosphine in THF, stirred for 2 h; the solvent was removed under vac., an excess of naphthalene was sublimed, the residue was extd. with hexane, filtered;

melting in vac. under N2;