Rhodium Acetate-Mediated Epoxidation from the Reaction of Diazobenzylphosphonates with Aldehydes and a Ketone: A Convenient and Highly Stereoselective Synthetic Method of cis-1,2-Epoxypropylphosphonates - Li, Zhi-Cheng; Zhang, Ji; Hu, Wen-Hao; Chen, Zhi-Yong; Yu, Xiao-Qi (Synlett, 2005)