Water Freezing as a Regiocontrol Element in the Multicomponent Assembly of Cyclic Enones
作者:Raquel De la Campa、Josefa Flórez
DOI:10.1002/chem.201404670
日期:2015.1.26
Regioselective synthesis of dialkoxy 2‐cyclopentenones and 2‐cyclohexenones with novel substitution patterns has been accomplished by the one‐pot combination of three simple starting materials (chromium carbene complex, Weinreb acetamide lithium enolate and 1‐alkoxyallenyllithium) under either anhydrous conditions or water‐promoted solidification of the reaction mixture. These results revealed an unprecedented