White, James D.; Blakemore, Paul R.; Green, Neal J.; Hauser, E. Bryan; Holoboski, Mark A.; Keown, Linda E.; Nylund Kolz, Christine S.; Phillips, Barton W. Journal of Organic Chemistry, 2002, vol. 67, # 22 p. 7750 - 7760 doi: 10.1021/jo020537q