Diazotization and Sandmeyer reactions of arylamines in poly(ethylene glycol)–methylene dichloride: usefulness of PEG in synthetic reactions

Diazotization and Sandmeyer reactions of representative arylamines (la–h) proceed smoothly in PEG–CH2Cl2 and were found to be effective for the preparations of halogenoarenes (X = Cl, Br, and I) and cyanoarenes (X = CN).