316372-83-5Relevant academic research and scientific papers
Copper-catalyzed synthesis of 2,4-disubstituted allenoates from α-diazoesters
Hassink, Matthew,Liu, Xiaozhong,Fox, Joseph M.
supporting information; experimental part, p. 2388 - 2391 (2011/06/25)
Chemical equations presented. A Cu-catalyzed method for coupling α-substituted-α-diazoesters with terminal alkynes to give substituted allenoates is described. Key to the development of a selective method was the recognition that an adventitous base catalyzes the isomerization to form the allenoate product. A plausible mechanism is proposed, based in part on evidence against a mechanism that involves a Cu(I)-acetylide as a low-valent intermediate.
