Reductive Alkylation of Quinolines to <i>N</i>-Alkyl Tetrahydroquinolines Catalyzed by Arylboronic Acid
作者:Priyanka Adhikari、Dipanjan Bhattacharyya、Sekhar Nandi、Pavan K. Kancharla、Animesh Das
DOI:10.1021/acs.orglett.1c00302
日期:2021.4.2
A boronic acid catalyzed one-pot tandem reduction of quinolines to tetrahydroquinolines followed by reductivealkylation by the aldehyde has been demonstrated. This step-economcial synthesis of N-alkyl tetrahydroquinolines has been achieved directly from readily available quinolines, aldehydes, and Hantzsch ester under mild reaction conditions. The mechanistic study demonstrates the unique behavior
Visible-Light-Induced α-Amino C–H Bond Arylation Enabled by Electron Donor–Acceptor Complexes
作者:Chang Xu、Fang-Qi Shen、Gaofeng Feng、Jian Jin
DOI:10.1021/acs.orglett.1c00984
日期:2021.5.21
Enabled by electron donor–acceptor complexes, a novel visible-light-induced α-amino C–H bond arylation protocol, without a photoredox catalyst, has been disclosed. The protocol does not require any transition metal, oxidant, or exclusion of oxygen or moisture. A direct irradiation of the mixture of tertiary amines and benzonitriles with visible light in N,N-diethylethanamide in the presence of Cs2CO3
通过电子供体-受体配合物,已公开了一种新型的可见光诱导的α-氨基CH键芳构化方案,无需光氧化还原催化剂。该协议不需要任何过渡金属,氧化剂,也不需要氧气或湿气。在Cs 2 CO 3存在下,在N,N-二乙基乙酰胺中用可见光直接照射叔胺和苄腈的混合物,得到良好产率的α-芳基化胺。
ONCOGENIC RAS-SPECIFIC CYTOTOXIC COMPOUND AND METHODS OF USE THEREOF
申请人:Fang Bingliang
公开号:US20090286847A1
公开(公告)日:2009-11-19
Embodiments of the present invention provide for methods and compositions comprising an Oncorasin, such as 1-[(4-chlorophenyl)methyl]-1H-indole-3-carboxaldehyde (oncrasin-1) and/or its analogs or derivatives.
However, translating this information to a non-biological catalyst is a challenging task. Here, we report a simple and scalable electrostatically tuned phenol (ETP) as an organocatalyst for transferhydrogenation of N-arenes using the Hantzsch ester as a hydride source. The biomimetic catalyst (1–5 mol%) displays potential catalytic activity to prepare diverse tetrahydroquinoline derivatives with good