Yong, S. R., Williams, M. C., Pyne, S. G., Ung, A. T., Skelton, B. W., White, A. H., & Turner, P. (2005). Synthesis of 2���Azaspiro[4.4]nonan���1���ones via Phosphine���Catalyzed [3 + 2]���Cycloadditions.. ChemInform, 36(49), no. doi:10.1002/chin.200549113
Yong, S. R., Williams, M. C., Pyne, S. G., Ung, A. T., Skelton, B. W., White, A. H., & Turner, P. (2005). Synthesis of 2���Azaspiro[4.4]nonan���1���ones via Phosphine���Catalyzed [3 + 2]���Cycloadditions.. ChemInform, 36(49), no. doi:10.1002/chin.200549113