Pd-catalyzed Fukuyama cross-coupling of secondary organozinc reagents for the direct synthesis of unsymmetrical ketones
作者:Alan H. Cherney、Sarah E. Reisman
DOI:10.1016/j.tet.2013.11.104
日期:2014.5
organometallic reagents represents a convergent route toward complex and versatile ketone products. Despite the mild conditions and high functional group tolerance, the cross-coupling of carboxylic acid derivatives, such as thioesters, and secondary organometallic reagents is an underdeveloped transformation. Herein, we disclose a convenient and efficient protocol for the Pd-catalyzed Fukuyama cross-coupling
Asymmetric Aminations and Kinetic Resolution of Acyclic
<scp>α‐Branched</scp>
Ynones
作者:Faqian He、Guosong Shen、Xiaoyu Yang
DOI:10.1002/cjoc.202100514
日期:2022.1
An efficient method for asymmetric synthesis of acyclic α-tertiary amine derivatives has been achieved through enantioselective aminations of α-branched ynones with azodicarboxylates enabled by chiral phosphoric acid catalysis. Moreover, kinetic resolution of racemic starting material was realized under these conditions, which gave access to valuable enantioenriched α-substituted ketones. A wide array