Iv. Shakhkel'Dyan et al., 3-azabicyclo[3.3.1]nonane derivatives: IV. Synthesis of amino acids with 3-azabicyclo[3.3.1]nonane fragment, RUSS J ORG, 37(4), 2001, pp. 583-591
A series of 1.5-dinitro-3-azabicyclo[3.3.1]non-6-enes was prepared by reduc
tion of 1-R-2,4- and 1-R-3,5-dinitrobenzenes with potassium borohydride fol
lowed by Mannich reaction with formaldehyde and amino acids. The molecular
structure of (6-bromo-1,5-dinitro-3-azabicyclo[3.3.1]non-6-en-3-yl)acetic a
cid was studied by X-ray diffraction analysis. The mechanism of decompositi
on under electron impact was determined for (7-methoxy-1,5-dinitro-3-azabic
yclo[3.3.1]non-6-en-3-yl)acetic acid.