Synthesis of Deuterated (<i>E</i>)-Alkene through Xanthate-Mediated Hydrogen–Deuterium Exchange Reactions
作者:Jiaming Li、Jian Li、Xiaoliang Ji、Runfa He、Yang Liu、Zebin Chen、Yubing Huang、Qiang Liu、Yibiao Li
DOI:10.1021/acs.orglett.1c02600
日期:2021.10.1
Herein we have developed a reversible hydrogen–deuteriumexchange reaction of nonactivated olefins. By using EtOCS2K as a mediator, the H/D exchange reaction was realized through repeated addition and elimination reactions, demonstrating reversible H/D exchange between ordinary olefins and deuterated olefins. Using the lowest cost D2O without precious metal catalysts and ligands, a broad spectrum of
在此,我们开发了非活化烯烃的可逆氢-氘交换反应。以EtOCS 2 K为介体,通过反复加成和消去反应实现H/D交换反应,证明了普通烯烃和氘化烯烃之间的H/D交换是可逆的。在没有贵金属催化剂和配体的情况下使用最低成本的 D 2 O,实现了广泛的官能团兼容性。
Mild, Selective Ru‐Catalyzed Deuteration Using D
<sub>2</sub>
O as a Deuterium Source
A method for the selectivedeuteration of polyfunctional organic molecules using catalytic amounts of [RuCl2 (PPh3 )3 ] and D2 O as a deuteriumsource is presented. Through variation of additives like CuI, KOH, and various amounts of zinc powder, orthogonal chemoselectivities in the deuteration process are observed. Mechanistic investigation indicates the presence of different, defined Ru-complexes