36941-04-5Relevant academic research and scientific papers
Pd-Catalyzed Alkene Difunctionalization Reactions of Malonate Nucleophiles: Synthesis of Substituted Cyclopentanes via Alkene Aryl-Alkylation and Akenyl-Alkylation
White, Derick R.,Hinds, Elsa M.,Bornowski, Evan C.,Wolfe, John P.
supporting information, p. 3813 - 3816 (2019/05/17)
The Pd-catalyzed coupling of malonate nucleophiles with alkenes bearing tethered aryl or alkenyl triflates is described. These alkene difunctionalization reactions afford malonate-substituted cyclopentanes that contain fused aryl or cycloalkenyl rings. Th
Pd-Catalyzed Alkene Difunctionalization Reactions of Enolates for the Synthesis of Substituted Bicyclic Cyclopentanes
Bornowski, Evan C.,Hinds, Elsa M.,White, Derick R.,Nakamura, Yusuke,Wolfe, John P.
, p. 1610 - 1630 (2019/09/04)
Palladium-catalyzed alkene difunctionalization reactions between alkenes bearing tethered aryl or alkenyl triflates and enolate nucleophiles are described. The transformations form two C-C bonds, a ring, and up to two stereocenters while producing substit
Enantioselective Halo-oxy- and Halo-azacyclizations Induced by Chiral Amidophosphate Catalysts and Halo-Lewis Acids
Lu, Yanhui,Nakatsuji, Hidefumi,Okumura, Yukimasa,Yao, Lu,Ishihara, Kazuaki
supporting information, p. 6039 - 6043 (2018/05/14)
Catalytic enantioselective halocyclization of 2-alkenylphenols and enamides have been achieved through the use of chiral amidophosphate catalysts and halo-Lewis acids. Density functional theory calculations suggested that the Lewis basicity of the catalyst played an important role in the reactivity and enantioselectivity. The resulting chiral halogenated chromans can be transformed to α-Tocopherol, α-Tocotrienol, Daedalin A and Englitazone in short steps. Furthermore, a halogenated product with an unsaturated side chain may provide polycyclic adducts under radical cyclization conditions.
Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols
Rehan, Mohammad,Nallagonda, Rajender,Das, Braja Gopal,Meena, Tannu,Ghorai, Prasanta
supporting information, p. 3411 - 3424 (2017/04/13)
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
Antioxidant-Based Inhibitors of Leukotriene Biosynthesis. The Discovery of 6--1-propen-3-yl>-2,3-dihydro-5-benzofuranol, a Potent Topical Antiinflammatory Agent
Hammond, Milton L.,Zambias, Robert A.,Chang, Michael N.,Jensen, Norman P.,McDonald, John,et al.
, p. 909 - 918 (2007/10/02)
The leukotrienes, metabolites of arachidonic acid produced through the action of the enzyme 5-lipoxygenase, are important mediators of immediate hypersensitivity and inflammation.Among the variety of diseases in which the leukotrienes may play a symptomat
