Annulation of β-Enaminonitriles with Alkynes via Rh<sup>III</sup>-Catalyzed C–H Activation: Direct Access to Highly Substituted 1-Naphthylamines and Naphtho[1,8-<i>bc</i>]pyridines
作者:Haili Wang、Hong Xu、Bin Li、Baiquan Wang
DOI:10.1021/acs.orglett.8b02341
日期:2018.9.21
A Cp*RhIII-catalyzed oxidative annulation of β-enaminonitriles with alkynes was reported to achieve selective synthesis of polysubstituted 1-naphthylamines and naphtho[1,8-bc]pyridines via multiple C–Hactivations. Assisted by a naphthylamine NH2 group, 1-naphthylamines were also readily cyclized to produce naphtho[1,8-bc]pyridines. In addition, the obtained naphtho[1,8-bc]pyridine derivatives exhibit
据报道,Cp * Rh III催化的炔烃对β-烯腈的氧化环化反应通过多种C-H活化选择性地合成了多取代的1-萘胺和萘[1,8- bc ]吡啶。在萘胺NH 2基团的辅助下,1-萘胺也很容易被环化以生成萘[1,8- bc ]吡啶。此外,所获得的萘并[1,8- bc ]吡啶衍生物在固态下表现出强烈的荧光。
Trisubstituted thiazoles by a 6π-electrocyclization of iminothiocarbonyl ylides
作者:A. Corsaro、M. Tarantello、G. Purrello
DOI:10.1016/s0040-4039(01)81891-8
日期:1981.1
Iminothiocarbonyl ylides are generated by a sulfur ligand exchange reaction of sulfoniumsalts and undergo a 6π-electrocyclic closure and aromatization to trisubstituted thiazoles. Related carbonyl ylides preferred a 4π-electrocyclization.
Potential antiarthritic agents. 2. Benzoylacetonitriles and .beta.-aminocinnamonitriles
作者:David N. Ridge、J. William Hanifin、Linda A. Harten、Bernard D. Johnson、Judith Menschik、Gabriela Nicolau、Adolph E. Sloboda、Doris E. Watts
DOI:10.1021/jm00197a020
日期:1979.11
Benzoylacetonitrile and beta-aminocinnamonitrile are shown to possess potent antiinflammatory activity in the rat adjuvant arthritis model. In a series of phenyl-substituted analogues, only o-, m-, and p-fluorobenzoylacetonitrile and m- and p-fluoro-beta-aminocinnamonitrile retained activity. Additionally, beta-amino-2- and beta-amino-3-thiopheneacrylonitrile and beta-oxo-2- and beta-oxo-3-thiophenepropionitrile
It takes two to TangPhos: β‐Amino acrylonitriles can be readily prepared from acetonitriles. Both of the E/Z isomers undergo hydrogenation with excellent enantioselectivity by using the Rh–TangPhos (TangPhos=1,1′‐di‐tert‐butyl‐(2,2′)‐diphospholane) catalyst system. The products, chiral β‐amino nitriles, are valuable chiral building blocks for many drugs.
[EN] BI- AND TRICYCLIC INDAZOLE-SUBSTITUTED 1,4-DIHYDROPYRIDINE DERIVATIVES AND USES THEREOF<br/>[FR] DÉRIVÉS DE 1,4-DIHYDROPYRIDINE SUBSTITUÉS PAR INDAZOLE BI- ET TRICYCLIQUES ET LEURS UTILISATIONS
申请人:BAYER SCHERING PHARMA AG
公开号:WO2010094405A1
公开(公告)日:2010-08-26
This invention relates to novel bi- and tricyclic indazole-substituted 1,4-dihydropyridine derivatives having protein tyrosine kinase inhibitory activity, to a process for the manufacture thereof and to the use thereof for the treatment of c-Met-mediated diseases or c-Met-mediated conditions, particularly cancer and other proliferative disorders.