Replacement of heteroorganic fragment in heteroorganic derivatives of aliphatic nitro compounds

Abstract

1. The corresponding boric esters of nitronic acids are formed when boron halides are reacted with the trialkylsilyl esters of nitronic acids under mild conditions. 2. The trialkylsuyl esters of nitronic acids are formed by the reaction of the diethylboric esters of nitronic acids with trialkylsilylamines under mild conditions. 3. The boron derivatives of dimethyl nitromalonate (R=H, F or Et in R2B) have the structure of the esters of bis-carbomethoxymethanenitronic acid, in which the boron atom is coordinated with the oxygen group of MeO2C. 4. The diethylboric ester of 2-methyl-2-carbomethoxy-1-propanenitronic acid is a dimer, in which the boron atom is coordinated at the oxygen of N→O.