Convenient synthesis of endo,endo- and endo,exo-bicyclo[3.3.1]nonane diamines
作者:Vadim A. Shiryaev、Irina V. Sokolova、Anastasiya M. Gorbachova、Victor B. Rybakov、Andrey K. Shiryaev、Yuri N. Klimochkin
DOI:10.1016/j.tet.2022.132828
日期:2022.7
3,7-Diaminobicyclo[3.3.1]nonanes were synthesized starting from adamantane-2-on. endo,endo-3,7-Diaminobicyclo[3.3.1]nonane was obtained through Schmidt rearrangement of 3,7-bicyclo[3.3.1]nonane dicarboxylic acid. The endo,exo-isomer was synthesized by Schmidt rearrangement of 3-oximinobicyclo[3.3.1]nonane-7-carboxylic acid in acidic media following reduction of oximino group which was unprecedentedly