High Turnover Numbers for the Catalytic Selective Epoxidation of Alkenes with 1 atm of Molecular Oxygen We acknowledge T. Hayashi (The University of Tokyo), M. Wada (Nippon Shokubai Co., Ltd.), and Y. Sumita (Nippon Shokubai Co., Ltd.) for their help with experiments. This work was supported in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan.