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Reactions of 5-[(E)-2-(aryl)-1-diazenyl]-2-hydroxybenzoic acids (LHH 0, where the aryl group is an R-substituted phenyl ring such that for LHH 0: R = H; LHH 0: R = 2 -CH3; L HH 0: R = 3 -CH3; L HH 0:(More)