89985-53-5Relevant articles and documents
Ruthenium-Catalyzed Direct Asymmetric Reductive Amination of Diaryl and Sterically Hindered Ketones with Ammonium Salts and H2
Hu, Le' an,Zhang, Yao,Zhang, Qing-Wen,Yin, Qin,Zhang, Xumu
supporting information, p. 5321 - 5325 (2020/02/28)
A Ru-catalyzed direct asymmetric reductive amination of ortho-OH-substituted diaryl and sterically hindered ketones with ammonium salts is reported. This method represents a straightforward route toward the synthesis of synthetically useful chiral primary diarylmethylamines and sterically hindered benzylamines (up to 97 % yield, 93–>99 % ee). Elaborations of the chiral amine products into bioactive compounds and a chiral ligand were demonstrated through manipulation of the removable and convertible -OH group.
Ligand-Promoted Pd-Catalyzed Oxime Ether Directed C-H Hydroxylation of Arenes
Liang, Yu-Feng,Wang, Xiaoyang,Yuan, Yizhi,Liang, Yujie,Li, Xinyao,Jiao, Ning
, p. 6148 - 6152 (2015/10/12)
An efficient Pd-catalyzed oxime ether directed ortho C-H hydroxylation of arenes under neutral conditions has been developed. The efficiency of this hydroxylation is significantly improved by a ligand. Oxone, an inexpensive, readily available, and safe reagent, was employed as terminal oxidant and oxygen source. The challenging electron-deficient substrates could also be monohydroxylated in high efficiency. Drug modification with this protocol was also successfully demonstrated.
Direct enantioseparation of 1-(2-hydroxyphenyl) ethylamines via diastereomeric salt formation: Chiral recognition mechanism based on the crystal structure
Kodama, Koichi,Hayashi, Naoki,Fujita, Mikidai,Hirose, Takuji
, p. 25609 - 25615 (2014/07/07)
In this study, the direct enantioseparation of unprotected 1-(2-hydroxyphenyl)ethylamines (1a and 1b) via diastereomeric salt formation is reported. After the one-pot synthesis of racemic 1, the screening of seven acidic chiral resolving agents showed tha