Intramolecular Direct C–H Bond Arylation from Aryl Chlorides: A Transition-Metal-Free Approach for Facile Access of Phenanthridines
摘要:
A C-H arylation with aryl chloride Is made viable through a transition-metal-free approach. In the presence of a simple diol associating with KOt-Bu, various phenanthridine derivatives can be conveniently accessed. In particular, only 10 mol % of simple and inexpensive ethylene glycol is required for this protocol. These results represent the first general examples of aryl chloride/C-H coupling under transition-metal-free conditions.
[EN] PYRROLOQUINOLINE ALKALOIDS AS ANTIMALARIAL AGENTS AND PROCESS FOR THE PREPARATION THEREOF<br/>[FR] ALCALOÏDES DE TYPE PYRROLOQUINOLINE COMME AGENTS ANTIPALUDIQUES ET PROCÉDÉ DE PRÉPARATION ASSOCIÉ
申请人:COUNCIL SCIENT IND RES
公开号:WO2013117986A1
公开(公告)日:2013-08-15
The patent provides novel compounds with potential anti-malarial activity and process of synthesis thereof. Further, the process for the synthesis of known antimalarial natural products marinoquinazolinone A-F, aplidiopsamine A and their potential antimalarial analogues is disclosed.
Base‐Promoted Aerobic Oxidation/Homolytic Aromatic Substitution Cascade toward the Synthesis of Phenanthridines
作者:Debabrata Maiti、Atreyee Halder、Suman De Sarkar
DOI:10.1002/adsc.201900995
日期:2019.11.5
transition metal‐free synthesis of polysubstituted phenanthridines from abundant starting materials like benzhydrol and 2‐iodoaniline derivatives. The reaction involves sequential oxidation of alcohol and direct condensation reaction with the amine resulting in a C−N bond formation followed by a radical C−C coupling in a cascade sequence. The used base potassium tert‐butoxide plays a dual role in dehydrogenation
Coupling N–H Deprotonation, C–H Activation, and Oxidation: Metal-Free C(sp<sup>3</sup>)–H Aminations with Unprotected Anilines
作者:Christopher J. Evoniuk、Gabriel dos Passos Gomes、Sean P. Hill、Satoshi Fujita、Kenneth Hanson、Igor V. Alabugin
DOI:10.1021/jacs.7b07519
日期:2017.11.15
An intramolecular oxidativeC(sp3)–H amination from unprotected anilines and C(sp3)–H bonds readily occurs under mild conditions using t-BuOK, molecular oxygen and N,N-dimethylformamide (DMF). Success of this process, which requires mildly acidic N–H bonds and an activated C(sp3)–H bond (BDE < 85 kcal/mol), stems from synergy between basic, radical, and oxidizing species working together to promote
Double C–H amination by consecutive SET oxidations
作者:Christopher J. Evoniuk、Sean P. Hill、Kenneth Hanson、Igor V. Alabugin
DOI:10.1039/c6cc03106d
日期:——
A new method for intramolecular C–H oxidative amination is based on a FeCl3-mediated oxidative reaction of anilines with activated sp3 C–H bonds.
一种新的分子内C-H氧化胺化方法基于FeCl3介导的苯胺与活化的sp3 C-H键的氧化反应。
PYRROLOQUINOLINE ALKALOIDS AS ANTIMALARIAL AGENTS AND PROCESS FOR THE PREPARATION THEREOF
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US20150336947A1
公开(公告)日:2015-11-26
The patent provides novel compounds with potential anti-malarial activity and process of synthesis thereof. Further, the process for the synthesis of known antimalarial natural products marinoquinazolinone A-F, aplidiopsamine A and their potential antimalarial analogues is disclosed.