Studies In Synthesis Of Long Chain Aliphatic Compounds

ABSTRACT

This thesis is in two parts.

Part I involves a study of the straight chain alkanes containing many carbon atom. These are important analogues of polyethylene, a versatile industrial raw material. Although they can be derived from natural fats or waxes or Prom ethylene oligomers, they are never obtained pure. The physical properties of linear polyethylenes can be better understood if pure paraffing of comperable chain length could be synthesised and analysed. Here long chain aliphatic compounds with butyl side chain which could be used as models for low density polyethylene have been synthesised. The method employed was first proposed by N.L. Whiting et al. The original schemes are reviewed. By this approach a number of long chain aliphatic compounds with a butyl branch had been synthesised. 12-Bromododecanol was converted to 12-uronododecanul (2) via oxalyl-chloride oxidation in DMSU.