Kcv. Ramanaiah et al., Synthesis and stereochemical assignment of exo- and endo-7-methyl-7-azabicyclo[2.2.1]heptan-2-ol, ORG LETT, 1(9), 1999, pp. 1439-1441
[GRAPHICS]
The syntheses of both the exo and endo stereoisomers of 7-methyl-7-azabicyc
lo[2.2.1]heptan-2-ol were achieved in straightforward fashion, Alternativel
y, the intramolecular cyclization of syn-4-N-methylaminocyclohexane 1,2-epo
xide was found to give exo-7-methyl-7-azabicyclo-[2,2,1]heptan-2-ol as the
sole product. The stereochemistry of the exo isomer was unequivocally confi
rmed by X-ray crystallography.