visible-light-induced aerobic oxidative [2 + 3] cycloaddition reaction between glycine derivatives and styreneoxides has been disclosed that provides an efficient approach for the rapid synthesis of 1,3-oxazolidines under mild conditions. This photoinduced process is enabled by the formation of an electron donor-acceptor complex between glycine derivatives and benzyl iodides.
Enantioselective synthesis of arylglycine derivatives by direct C–H oxidative cross-coupling
作者:Xiao-Hong Wei、Gang-Wei Wang、Shang-Dong Yang
DOI:10.1039/c4cc07361d
日期:——
A new method for the synthesis of chiral alpha-amino acid derivatives by enantioselective C-H arylation of N-aryl glycineesters with aryl boric acids in the presence of a chiral Pd(II)-catalyst has been developed. This work successfully integrates the direct C-H oxidation with asymmetric arylation and exhibits excellent enantioselectivity.
Visible Light-Induced Aerobic Oxidative Csp3
−H Arylation of Glycine Derivatives
作者:Shilin Li、Xiaorong Yang、Yunwei Wang、Huang Zhou、Boyang Zhang、Ganxing Huang、Yuan Zhang、Ying Li
DOI:10.1002/adsc.201801018
日期:2018.11.16
A direct aerobic oxidative dehydrogenative coupling reaction of glycine derivatives with electron‐rich arenes has been accomplished via the synergistic combination of organic‐dye mediated photoredox catalysis and Lewis acid catalysis. This process exhibits good tolerance of functional groups and provides rapid synthesis of arylglycine derivatives at room temperature under an air atmosphere. Moreover
Double-Oxidative Dehydrogenative (DOD) [4 + 2]-Cyclization/Oxidative Aromatization Tandem Reaction of Glycine Derivatives with Ethylbenzenes
作者:Wei Jiang、Yajun Wang、Pengfei Niu、Zhengjun Quan、Yingpeng Su、Congde Huo
DOI:10.1021/acs.orglett.8b01941
日期:2018.8.3
structure formation. A Cu(II)/DDQ/O2 system-catalyzed DOD [4 + 2]-annulation/oxidative aromatization tandem reaction of readily available glycine derivatives and alkylbenzenes was established. This approach facilitates rapid access to a broad scope of substituted quinoline-2-carboxylate derivatives, an important motif in drug discovery. The reaction could feasibly be applied to a 10 gram-scale synthesis
双氧化脱氢(DOD)环化代表了最简单,最经济的环状结构形成方法之一。建立了Cu(II)/ DDQ / O 2系统催化的易得甘氨酸衍生物和烷基苯的DOD [4 + 2]环化/氧化芳构化串联反应。这种方法有助于快速获得广泛范围的取代的喹啉-2-羧酸衍生物,这是药物发现中的重要主题。该反应可以可行地应用于10克规模的合成。
Double-Oxidative Dehydrogenative [4+2]-Cyclization/Dehydrogenation/Oxygenation Tandem Reaction of <i>N</i>-Arylglycine Derivatives with Cumenes
作者:Wei Jiang、Shuocheng Wan、Yingpeng Su、Congde Huo
DOI:10.1021/acs.joc.9b00506
日期:2019.6.21
most straightforward strategies for the synthesis of cyclic compounds. A novel approach to substituted 3,4-dihydroquinoline-3-one derivatives via a Cu(II)/DDQ/O2 system-catalyzed DOD [4+2]-cyclization/dehydrogenation/oxygenation cascade reaction of N-arylglycine derivatives, cumenes, and O2 has been developed.
双氧化脱氢(DOD)环化是合成环状化合物最直接的策略之一。通过Cu(II)/ DDQ / O 2系统催化的N-芳基甘氨酸衍生物枯烯的DOD [4 + 2]-环化/脱氢/加氧级联反应取代3,4-二氢喹啉-3-酮衍生物的新方法,并且已经开发了O 2。