[EN] FUSED BICYCLIC HETEROARYL COMPOUNDS USEFUL AS NLRP3 INHIBITORS [FR] COMPOSÉS HÉTÉROARYLE BICYCLIQUES FUSIONNÉS UTILES EN TANT QU'INHIBITEURS DE NLRP3
摘要:
The invention relates to novel compounds having the general formula (Ic) wherein R1, R2, R3, R8, R9, RX, A1, A2, W and n are as described herein, composition including the compounds and methods of using the compounds.
Facile access to sterically hindered aryl ketones via carbonylative cross-coupling: application to the total synthesis of luteolin
作者:B. Michael O’Keefe、Nicholas Simmons、Stephen F. Martin
DOI:10.1016/j.tet.2011.03.074
日期:2011.6
achieving the carbonylative cross-coupling of sterically hindered, ortho-disubstituted aryl ketones is reported. The commercially available PEPPSI-IPr catalyst is shown to efficiently promote the carbonylative cross-coupling of hindered ortho-disubstituted aryl iodides to give diaryl ketones; traditional phosphine catalysts are less effective. Carbonylative Suzuki-Miyaura cross-couplings provide a diverse array
A new eco-friendly procedure for the oxyiodination of aromatic compounds with NH4I as an iodine source and H2O2 as an oxidant without any catalyst is presented.
提出了一种新的环保方法,无需任何催化剂,即可使用NH 4 I作为碘源和H 2 O 2作为氧化剂对芳族化合物进行氧碘化。
Carbonylative Cross-Coupling of <i>ortho</i>-Disubstituted Aryl Iodides. Convenient Synthesis of Sterically Hindered Aryl Ketones
作者:B. Michael O’Keefe、Nicholas Simmons、Stephen F. Martin
DOI:10.1021/ol802202j
日期:2008.11.20
A mild and general protocol for the carbonylative cross-coupling of stericallyhindered ortho-disubstituted aryl iodides is reported. Carbonylative Suzuki-Miyaura couplings of a variety of aryl boronic acids provide an array of substituted biaryl ketones in modest to excellent yield. A carbonylative Negishi coupling that utilizes alkynyl nucleophiles is also described.
Highly Selective and Modular Synthesis of 3-Aryl-4-(arylethynyl)-2<i>H</i>-chromen-2-ones from 2-Iodoaryl 2-Arylacetates through a Carbonylative Sonogashira Coupling-Intramolecular Aldol Cascade Reaction
H-chromen-2-ones from 2-iodoaryl 2-arylacetates and arylacetylenes has been developed. The carbonylative Sonogashira coupling–intramolecular aldol casade reaction was carried out in the presence of Pd(PPh3)2(Cl)2 as the catalyst. The one-pot approach that involves the in situ formation of the 2-iodoaryl 2-arylacetates from the corresponding 2-iodophenols and 2-arylacetyl chlorides followed by the palladium-catalyzed
Iodination of Aromatic Compounds Using Potassium Iodide and Hydrogen Peroxide
作者:K. Suresh Kumar Reddy、N. Narender、C. N. Rohitha、S. J. Kulkarni
DOI:10.1080/00397910802238767
日期:2008.10.28
Abstract A simple, efficient, regioselective, and ecofriendly method for oxyiodination of aromaticcompounds is presented. In this method, the electrophilic substitutions of iodine generated in situ from KI as an iodine source and hydrogen peroxide as an oxygen source have been employed without any catalyst/mineral acid for the first time.
摘要 提出了一种简单、高效、区域选择性和环境友好的芳香族化合物氧碘化方法。在该方法中,首次在没有任何催化剂/无机酸的情况下使用了由 KI 作为碘源和过氧化氢作为氧源原位产生的碘的亲电取代。