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Tetrakis(triphenylphosphine)platinum in DMF was utilized as a mild catalyst for cross-coupling reactions of organoboronic acids with aryl iodides. The present reactions exhibited excellent group-selectivity where couplings of organoboronic acids 2a – e with 4-bromo-1-iodobenzene ( 4 ) give 4-arylbromobenzenes 5a – b and 4-alkenylbromobenzenes 5c – e in excellent yields.

Tetrakis(triphenylphosphine)platinum in DMF was utilized as a mild catalyst for cross-coupling reactions of organoboronic acids with aryl iodides. The present reactions exhibited excellent group-selectivity where couplings of organoboronic acids 2a – e with 4-bromo-1-iodobenzene ( 4 ) give 4-arylbromobenzenes 5a – b and 4-alkenylbromobenzenes 5c – e in excellent yields.

The N-alkyl-2,3-epoxypropylamines (2) formed from primary alkylamines (1) and epichlorohydrin were chemoselectively rearranged to the four-membered rings, N-alkylazetidin-3-ols (3), upon treatment of triethylamine in refluxing acetonitrile.