Reaction of aliphatic and aromatic amides in acetic acid with aqueous sodium bromite (NaBrO2) under mild conditions gave N-bromoamides in fairly good yields.
The present invention relates to silica-filled rubber compositions containing dialkyleneamide polysulfides of the formula
where R1 is independently selected from alkylene groups having 1 to 18 carbon atoms and x is an integer of from 2 to 7.