Visible-light promoted α-alkylation of glycine derivatives with alkyl boronic acids
作者:Jiayuan Wang、Yingpeng Su、Zhengjun Quan、Jun Li、Jie Yang、Yong Yuan、Congde Huo
DOI:10.1039/d0cc07688k
日期:——
A visible-light-mediated aerobic α-alkylation reaction of glycine derivatives with alkyl boronicacids has been established in the presence of a Ru/Cu catalyst system, giving the desired radical coupling products efficiently. The transformation features mild reaction conditions and broad substrate scope, delivering a wide range of complex unnatural α-amino-acid derivatives.
C(sp<sup>3</sup>)–H/C(sp<sup>3</sup>)–H Dehydrogenative Radical Coupling of Glycine Derivatives
作者:Jiayuan Wang、Youwan Ye、Tongzhi Sang、Chenxing Zhou、Xiazhen Bao、Yong Yuan、Congde Huo
DOI:10.1021/acs.orglett.2c02951
日期:2022.10.21
Here we report a general C(sp3)–H/C(sp3)–H dehydrogenative coupling strategy for the preparation of various natural or unnatural amino acids from readily available glycinederivatives and hydrocarbons through a combination of SET and HAT process.
在这里,我们报告了一种通用的 C(sp 3 )–H/C(sp 3 )–H 脱氢偶联策略,用于通过 SET 和 HAT 过程的组合从现成的甘氨酸衍生物和碳氢化合物制备各种天然或非天然氨基酸。
Engineering of Dual-Function <i>Vitreoscilla</i> Hemoglobin: A One-Pot Strategy for the Synthesis of Unnatural α-Amino Acids
作者:Fengxi Li、Yaning Xu、Yuelin Xu、Hanqing Xie、Junhao Wu、Chunyu Wang、Zhengqiang Li、Zhi Wang、Lei Wang
DOI:10.1021/acs.orglett.3c02537
日期:2023.10.6
to catalyze non-natural reactions remains underexplored. This paper reports a new biocatalytic strategy for the one-pot synthesis of unnatural α-aminoacids. Engineered variants of dual-function Vitreoscilla hemoglobin were found to efficiently catalyze N–H insertion and C–H sp3 alkylation, providing moderate to excellent yields (57%–95%) of unnatural α-aminoacidderivatives and turnover numbers (1425–2375)