Aerobic oxidative trifunctionalization of olefins for the synthesis of functionalizedβ-ketothiosulfones has been described. The transformation proceeds through molecular oxygen activation under copper catalysis and forms the two new C–S bonds in a single operation using mild conditions. A novel Cu-catalyzed sulfonyl radical addition/oxidation/funtionalization relay mechanism was proposed for the
The selective addition of organomagnesium reagents to 2,4,6‐trichlorophenyl isocyanide leading to magnesiated aldimines is reported. These aldimines react with Weinreb amides, ketones, or carbonates to provide the corresponding carbonyl derivatives after acidic cleavage. This allows for an efficient synthesis of 1,2‐dicarbonyl compounds and α‐hydroxy ketones.
This invention is directed to novel and known stufur containing compounds and pharmaceutically acceptable salts thereof that have utility as antifungals and as antiproliferative agents against mammalian cells, in particular cancer cells and most particularly leukemia-derived cells. The invention provides a method for synthesizing certain of the sulfur containing compounds that is more efficient than previously known methods.
Copper-Catalyzed Intermolecular Difunctionalization of Styrenes with Thiosulfonates and Arylboronic Acids via a Radical Relay Pathway
作者:Qingjin Liang、Patrick J. Walsh、Tiezheng Jia
DOI:10.1021/acscatal.9b04887
日期:2020.2.21
intermolecular difunctionalization strategy of styrenes with methyl thiosulfonates and arylboronic acids has been developed. This method provides an efficient and straightforward avenue to a broad range of 2,2-diarylethyl sulfone derivatives from readily available methyl thiosulfonates and commercially available styrene and arylboronic acid derivatives. The diverse substrate scope attests to the high
Preparation of Fully Substituted Anilines for the Synthesis of Functionalized Indoles
作者:Armin H. Stoll、Paul Knochel
DOI:10.1021/ol7025872
日期:2008.1.1
A wide range of highly functionalized indoles were prepared by the successive magnesiation of readily available o-alkynyl protected anilines using TMPMgCl.LiCl or LDA, followed by a KH-mediated cyclization reaction.