12-Nitrododecanol, 1, 12-dinitrododecane, 1, 24-dinitrotetracontane and 2, 15- diaminohexadecan-1, 16-dioioc acid were prepared from the common intermediate 12- bromododecanol. This bromoalcohol, being prepared from cyclododecanone, is free of homologous bifunctional impurities. The functionalised 24 carbon chain was prepared by a Wittig reaction of 12-bromododecanal with the triphenylphosphonium salt of 12- ...