Deaminative Olefination of Methyl <i>N</i>-Heteroarenes by an Amine Oxidase Inspired Catalyst
作者:Pradip Ramdas Thorve、Biplab Maji
DOI:10.1021/acs.orglett.0c04060
日期:2021.1.15
We explored the bioinspired o-quinone cofactor catalyzed aerobic primary amine dehydrogenation for a cascade olefination reaction with nine different methyl N-heteroarenes, including pyrimidines, pyrazines, pyridines, quinolines, quinoxolines, benzimidazoles, benzoxazoles, benzthiazoles, and triazines. An o-quinone catalyst phd (1,10-phenanthroline-5,6-dione) combined with a Brønsted acid catalyzed
我们探索了仿生邻醌辅因子催化的有氧伯胺脱氢与九种不同的甲基N-杂芳烃的级联烯化反应,包括嘧啶、吡嗪、吡啶、喹啉、喹啉、苯并咪唑、苯并恶唑、苯并噻唑。一个ø与布朗斯台德酸组合的-quinone催化剂博士(1,10-菲咯啉-5,6-二酮)催化的反应。N-杂芳基芪类化合物在温和条件下以高产率和 ( E )-选择性合成,使用氧气 (1 atm) 作为唯一氧化剂,无需过渡金属盐、配体、化学计量碱或氧化剂。
[EN] BIARYL LIGANDS<br/>[FR] LIGANDS BIARYLE
申请人:UNIV FLORIDA
公开号:WO2015038872A1
公开(公告)日:2015-03-19
Embodiments of the present disclosure provide for biaryl ligands (also referred to herein as "biaryl compound"), biaryl complexes, methods of making biaryl compounds, methods of making single enantiomers of these biaryl compounds, methods of use (e.g., catalysis) and the like.
Boric acid catalyzed chemoselective reduction of quinolines
作者:Dipanjan Bhattacharyya、Sekhar Nandi、Priyanka Adhikari、Bikash Kumar Sarmah、Monuranjan Konwar、Animesh Das
DOI:10.1039/c9ob02673h
日期:——
Boricacid promoted transfer hydrogenation of substituted quinolines to synthetically versatile 1,2,3,4-tetrahydroquinolines (1,2,3,4-THQs) was described under mild reaction conditions using a Hantzsch ester as a mild organic hydrogen source. This methodology is practical and efficient, where isolated yields are excellent and reducible functional groups are well tolerated in the N-heteroarene moiety
Synthesis of Alkaloids of<i>Galipea officinalis</i>by Alkylation of an α-Amino Nitrile
作者:Saurabh Shahane、Fadila Louafi、Julie Moreau、Jean-Pierre Hurvois、Jean-Luc Renaud、Pierre van de Weghe、Thierry Roisnel
DOI:10.1002/ejoc.200800512
日期:2008.9
A new synthetic approach directed towards the synthesis of naturallyoccurring 2-alkyl-tetrahydroquinolines is described. The C–C bonds in the α position relative to the nitrogen atom were formed by the reversal of the polarity of the C=N bond of α-amino nitrile 6, which was prepared electrochemically from 1-(phenylethyl)-tetrahydroquinoline. A NaBH4-mediated reductive decyanation process furnished
Zinc(<scp>ii</scp>)-catalyzed intramolecular hydroarylation-redox cross-dehydrogenative coupling of<i>N</i>-propargylanilines with diverse carbon pronucleophiles: facile access to functionalized tetrahydroquinolines
Redox cross-dehydrogenative coupling ofN-propargylanilines with diverse carbon pronucleophiles offers a general and efficient synthetic method to construct functionalized tetrahydroquinolines.