Synthesis of Isoquinolones by Sequential Suzuki Coupling of 2-Halobenzonitriles with Vinyl Boronate Followed by Cyclization
作者:Saul Jaime-Figueroa、Michael J. Bond、J. Ignacio Vergara、Jake C. Swartzel、Craig M. Crews
DOI:10.1021/acs.joc.1c00472
日期:2021.6.18
A novel, facile, and expeditious two-step synthesis of 3,4-unsubstituted isoquinolin-1(2H)-ones from a Suzuki cross-coupling between 2-halobenzonitriles and commercially available vinyl boronates followed by platinum-catalyzed nitrile hydrolysis and cyclization is described.
通过2-卤代苯甲腈和市售乙烯基硼酸酯之间的 Suzuki 交叉偶联,然后铂催化的腈水解和环化,一种新颖、简便且快速的两步合成 3,4-未取代的异喹啉-1(2 H )-酮被描述。
[EN] PROCESS FOR FLUORINATING COMPOUNDS<br/>[FR] PROCÉDÉ DE FLUORATION DE COMPOSÉS
申请人:DOW AGROSCIENCES LLC
公开号:WO2017024167A1
公开(公告)日:2017-02-09
Disclosed are mild temperature (e.g., from 0 to 80°C) SNAr fluorinations of a variety of halide and sulfonate substituted aryl and heteroaryl substrates using NMe4F.
A general palladium-catalyzedreductivecarbonylation of aryl triflates in the presence of synthesis gas (CO/H 2 ) has been developed. The reaction with this most simple and environmentally benign formylation source proceeds under mild conditions and various aromatic aldehydes have been prepared in good to high yield.
Preparation and Palladium-Catalyzed Cross-Coupling of Aryl Triethylammonium Bis(catechol) Silicates with Aryl Triflates
作者:W. Michael Seganish、Philip DeShong
DOI:10.1021/jo035309q
日期:2004.2.1
Pentavalent aryl and heteroaryl bis(catechol) silicates undergo palladium-catalyzedcross-coupling with aryl and heteroaryl triflates in the presence of a fluoride source in excellent yields. These solid, air-stable bis(catechol) silicates are prepared from a high-yielding displacement reaction between catechol and an aryl siloxane in the presence of an amine base. The cross-couplingreaction is tolerant
Intermolecular Mizoroki-Heck Reaction of Aliphatic Olefins with High Selectivity for Substitution at the Internal Position
作者:Liena Qin、Xinfeng Ren、Yunpeng Lu、Yongxin Li、Jianrong Steve Zhou
DOI:10.1002/anie.201201806
日期:2012.6.11
New ligand for old reaction: The title reaction of aryltriflates with aliphatic olefins leads to substitution at the internal position with high selectivity. The ratio of the desired isomer (shown in the scheme) to the sum of all other isomers is generally above 10:1. The key to success is the use of a ferrocene bisphosphine ligand (R= 1‐naphthyl). The reaction can be easily scaled up, and minor isomers