ISONITRILE SYNTHESES AT THE METAL .4. THERMOLYSIS OF ARENEDIAZONIUM PENTACARBONYLCYANO-6A-METALATES IN VARIOUS MEDIA - ROUTE TO NOVEL ALPHA-FUNCTIONALIZED ISOCYANIDES

A new route to complexed isocyanides—including those with strongly electronegative substituents which were previously inaccessible, e.g. CNCCl3—is seen in the accompanying reaction scheme. The aryl radical ArN  N• or Ar• reacts with the solvent H  R via H abstraction; the resulting R• combines with the radical cyano complex. (Figure Presented.) Copyright © 1979 by Verlag Chemie, GmbH, Germany