A deuterium‐labelingreaction of nitroalkanes in deuterium oxide and the subsequent nitroaldol reaction have been accomplished under basic and organocatalytic conditions to provide the deuterium‐labeled β‐nitroalcohols in high yields and high deuterium contents. β‐Deuterated β‐nitroalcohols could be smoothly obtained from the reaction of nitroalkanes and various electrophiles using the easily‐removal
Organocatalytic Asymmetric Transferhydrogenation of β-Nitroacrylates: Accessing β<sup>2</sup>-Amino Acids
作者:Nolwenn J. A. Martin、Xu Cheng、Benjamin List
DOI:10.1021/ja8069852
日期:2008.10.22
We describe a highly efficient and enantioselective Hantzsch ester mediated conjugate reduction of beta-nitroacrylates that is catalyzed by a Jacobsen thiourea catalyst as a key step in a new route to optically active beta2-amino acids.