Metallation of aniline by reaction with dodecacarbonyltriosmium

Abstract

Dodecacarbonyltriosmium in refluxing aniline gives H₂Os₃(HNC₆H₄)(CO)₈(H₂NPh) which reacts successively with CO to give H₂Os₃(HNC₆H₄)(CO)₉ and HOs₃(HNPh)(CO)₁₀. The decacarbonyl in refluxing nonane gives initially H₂Os₃(HNC₆H₄)(CO)₉ which then isomerises to H₂Os₃(NPh)(CO)₉ which is the main product on heating a hydrocarbon solution of the decacarbonyl in a sealed tube. Corresponding reactions with p-fluoro- and p-methyl-aniline are compared with those of aniline.