Synthesis and reactivity of (1S,4S,5S) -5-bromo-1,3,3-trimethyl-N-nitro-2-oxabicyclo[2.2.2]octan-6-imine. X Ray-molecular structure and absolute configuration of E and Z isomers of (1S,4S)-5,5-dibromo-1,3,3-trimethyl-N-nitro-2-oxabicyclo[2.2.2]octan-6-imine, the first case of separated nitrimine isomers.
