Copper-Mediated Oxidative Transformation of N-Allyl Enamine Carboxylates toward Synthesis of Azaheterocycles

Kah Kah Toh, Anup Biswas, Yi-Feng Wang, Yun Yun Tan, and Shunsuke Chiba 

 J. Am. Chem. Soc., 2014, 136 (16), pp 6011–6020 

DOI: 10.1021/ja500382c