Abstract : Fluoronitro polymers for use as binders in pyrotechnics applications were investigated. Isopropyl 3,3-difluroroacrylate and 2,2-difluorovinyl isopropyl ketone were synthesized from 3-chloro-3,3-difluoropropionate and 1-chloro-1,1-difluoro-4-methyl-3-pentanone. Attempted Michael addition reactions of nitronate ions to these olefins failed to give stable adducts. The geminal difluoroazides, 2-azido-2,2-difluoroacetophenone, 1-azido-1,1-difluoro-4-methyl-3-pentanone and isopropyl 3-azido-3,3-difluoropropionate were prepared from the corresponding chlorides with sodium azide. Reaction of lithium 2-nitropropane-1,3-diol acetonide with perfluoroalkyl iodides gave the corresponding 2-perfluoroalkyl-2-nitropropane-1,3-diacetonides. Work was continued on the synthesis of polynitro derivatives of the furofuran ring system. The intermediate furans such as 5-nitro-2-methyl-3-furanmethanol acetate, 3-methyl-2-furanmethanol acetate, and 2,3-furandi-methanol were synthesized, but closure of the second ring has not yet been effected. Work was begun on the synthesis of 1,1,3,3-tetranitrocyclobutane. The model compound 1,1-dinitrocyclobutane was prepared from 1-nitrocyclobutane. Oxidation of 1,3-diaminocyclobutane gave 1,3-dinitrocyclobutane. Keywords: Nitroheterocycles, Ni