Additions and Corrections - A Homolytic Mechanism for the Thermal Isomerization and Decomposition of n-Benzhydryl-α,α-diaryl Nitrones

Molecular structure of (1,7-cyclododecadiyne)hexacarbonyldiiron. Implications on the alkyne disproportionation reaction

“…Configurationally Isomeric Iminoxy Radicals. Intermediates in the Rearrangements of Nitrones to -Alkyl Oximes1 Sir: Previous investigations2 3 of the thermal rearrangement of A-benzhydryla, -diphenylnitrone (1) to benzophenone O-benzhydryloxime (2) provide evidence for a homolytic cleavage to iminoxy and benzhydryl radicals with subsequent recombination at oxygen. 4 We now report evidence which indicates that geometrically isomeric diaryliminoxy radicals (Z)-4 and (E)-4 undergo syn-anti isomerization five or six orders of magnitude faster than the corresponding oxime anions.…”