Pd-EnCat<sup>TM</sup>TPP30 as a Catalyst for the Generation of Highly Functionalized Aryl- and Alkenyl-Substituted Acetylenes via Microwave-Assisted Sonogashira Type Reactions
作者:Jörg Sedelmeier、Steven V. Ley、Heiko Lange、Ian R. Baxendale
Visible-light induced copper(<scp>i</scp>)-catalysed denitrogenative oxidative coupling of hydrazinylpyridines with terminal alkynes
作者:Vaibhav Pramod Charpe、Aniket A. Hande、Arunachalam Sagadevan、Kuo Chu Hwang
DOI:10.1039/c8gc01180j
日期:——
Visible light mediated copper catalysed denitrogenative oxidative coupling of 2-hydrazinopyridines with terminal alkynes to form 2-(alkyl/arylethynyl) pyridines in the presence of O2 at room temperature is reported with 42 examples. This is the first report on visible light stimulated N2 elimination by an in situ generated copper(II) superoxo/peroxo complex. N2 and water are the only by-products. The
AMINO-5-(6-MEMBERED)HETEROARYLIMIDAZOLONE COMPOUNDS AND THE USE THEREOF FOR ß-SECRETASE MODULATION
申请人:Wyeth
公开号:EP1896448A1
公开(公告)日:2008-03-12
[EN] AMINO-5-(6-MEMBERED)HETEROARYLIMIDAZOLONE COMPOUNDS AND THE USE THEREOF FOR ß-SECRETASE MODULATION<br/>[FR] DÉRIVÉS D'IMIDAZOLONE PORTANT UN GROUPEMENT HÉTÉROARYLE À 6 CHAÎNONS EN POSITION 5 ET UN GROUPEMENT AMINO, ET LEUR EMPLOI DANS LA RÉGULATION DE LA ß-SECRÉTASE
申请人:WYETH CORP
公开号:WO2007005404A1
公开(公告)日:2007-01-11
[EN] The present invention provides a 2-amino-5-heteroaryl-5-phenylimidazolone compound of formula I. The present invention also provides methods for the use thereof to inhibit ß-secretase (BACE) and treat ß-amyloid deposits and neurofibrillary tangles [FR] La présente invention décrit un dérivé de 2-amino-5-hétéroaryle-5-phénylimidazolone de formule I. La présente invention décrit également des méthodes d'emploi de ce dérivé dans l'inhibition de la ß-secrétase (BACE) et le traitement de dépôts de type ß-amyloïdes et d'enchevêtrements neurofibrillaires.
Stereo- and regioselective gold(<scp>i</scp>)-catalyzed hydroamination of 2-(arylethynyl)pyridines with anilines
2-(arylethynyl)pyridines with anilines affords stereoselectively Z-enamine products with excellent regioselectivity. The reaction proceeds with moderate to excellent yields and accommodates a diverse range of functional groups on alkynes (ether, bromo, trifluoromethyl, acetyl, and carbomethoxy) and anilines (ether, bromo, chloro, and carbethoxy). The stereochemistry of the obtained enamines is complementary to that