Palladium-Catalyzed Cyclization Reaction of <i>o</i>-Iodoanilines, CO<sub>2</sub>, and CO: Access to Isatoic Anhydrides
作者:Wen-Zhen Zhang、Ning Zhang、Yu-Qian Sun、Yu-Wei Ding、Xiao-Bing Lu
DOI:10.1021/acscatal.7b03000
日期:2017.12.1
oxidants. Herein we report a highly selective palladium-catalyzed cyclizationreaction for the efficient synthesis of isatoic anhydrides from readily available o-iodoanilines, CO2, and CO. The reaction proceeds under mild conditions and is redox-neutral. Both CO2 and CO are indispensable C1 building blocks for this catalytic reaction.
Palladium‐Catalyzed Carbonylative Synthesis of 2‐(Trifluoromethyl)quinazolin‐4(3
<i>H</i>
)‐ones from Trifluoroacetimidoyl Chlorides and Nitro Compounds
procedure on palladium‐catalyzed carbonylative reaction of trifluoroacetimidoyl chlorides and nitro compounds for the construction of pharmaceutically valuable 2‐(trifluoromethyl)quinazolin‐4(3H)‐ones has been achieved. In this transformation, Mo(CO)6 has been used both as a convenient CO source and a reducing reagent. This newly developed protocol is compatible with various nitro compounds and can be
[EN] NEW COMPOUNDS FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES<br/>[FR] NOUVEAUX COMPOSÉS POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
申请人:UNIV LEUVEN KATH
公开号:WO2012080221A1
公开(公告)日:2012-06-21
This invention provides novel compounds and the novel compounds for use as a medicine, more in particular for the prevention or treatment of neurodegenerative disorders, more specifically certain neurological disorders, such as disorders collectively known as tauopathies, and disorders characterised by cytotoxic α-synuclein amyloidogenesis. The present invention also relates to the use of said novel compounds for the manufacture of medicaments useful for treating such neurodegenerative disorders. The present invention further relates to pharmaceutical compositions including said novel compounds and to methods for the preparation of said novel compounds. The compounds have the formula (A1) wherein R1, R2, R4, R6, E, n, Y1, Y2, Y3, Y4, Y5, L, B, R8, and m are as defined in the claims.
NEW COMPOUNDS FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES
申请人:Griffioen Gerard
公开号:US20130274260A1
公开(公告)日:2013-10-17
This invention provides novel compounds and the novel compounds for use as a medicine, more in particular for the prevention or treatment of neurodegenerative disorders, more specifically certain neurological disorders, such as disorders collectively known as tauopathies, and disorders characterised by cytotoxic α-synuclein amyloidogenesis. The present invention also relates to the use of said novel compounds for the manufacture of medicaments useful for treating such neurodegenerative disorders. The present invention further relates to pharmaceutical compositions including said novel compounds and to methods for the preparation of said novel compounds. The compounds have the formula (A1) wherein R
1
, R
2
, R
4
, R
6
, E, n, Y
1
, Y
2
, Y
3
, Y
4
, Y
5
, L, B, R
8
, and m are as defined in the claims.
2,3-Difunctionalized Indoles via Radical Acylation or Trifluoromethylation of <i>ortho</i>-Alkynylphenyl Isonitriles
作者:Dirk Leifert、Frauke Weidlich、Florin Adler、Constantin G. Daniliuc、Fatmah A. Alasmary、Armido Studer
DOI:10.1021/acs.orglett.1c03916
日期:2022.1.14
A radical cascade to 2,3-disubstituted indoles proceeding via acylation or trifluoromethylation of ortho-alkynylphenyl isonitriles is presented. In these cascades, two C–C bonds and one C–O bond are formed using an inexpensive oxidant and a catalytic copper or iron salt. The starting isonitriles are easily accessible, and commercially available aldehydes and fluoromethylation reagents serve as reaction