Heteroaryl β-tetralin ureas as novel antagonists of human TRPV1
摘要:
We report on a series of alpha-substituted-beta-tetralin-derived and related phenethyl-based isoquinolinyl and hydroxynaphthyl ureas as potent antagonists of the human TRPV1 receptor. The synthesis and Structure-activity relationships (SAR) of the series are described. (C) 2007 Elsevier Ltd. All rights reserved.
Heteroaryl β-tetralin ureas as novel antagonists of human TRPV1
摘要:
We report on a series of alpha-substituted-beta-tetralin-derived and related phenethyl-based isoquinolinyl and hydroxynaphthyl ureas as potent antagonists of the human TRPV1 receptor. The synthesis and Structure-activity relationships (SAR) of the series are described. (C) 2007 Elsevier Ltd. All rights reserved.
Enantioselective Rhodium-Catalyzed Allylic Substitution with a Nitrile Anion: Construction of Acyclic Quaternary Carbon Stereogenic Centers
作者:Ben W. H. Turnbull、P. Andrew Evans
DOI:10.1021/jacs.5b02810
日期:2015.5.20
A direct and highly enantioselective rhodium-catalyzed allylicalkylation of allyl benzoate with α-substituted benzyl nitrile pronucleophiles is described. This simple protocol provides a new approach toward the synthesis of acyclic quaternary carbon stereogenic centers and provides the firstexample of the direct asymmetricalkylation of a nitrile anion. The synthetic utility of the nitrile products
For the first time, a novel copper-catalyzed direct C(sp3)–H/C(sp3)–H cross-coupling of arylacetonitriles with unactivated benzylic compounds was described, allowing various a-benzylated arylacetonitriles to be readily accessible under base-free conditions. Mechanistic investigations suggested that the reaction proceeds through radical process and the C(sp3)–H cleavage of arylacetonitriles probably
Bioinspired Metal‐Free Formal Decarbonylation of α‐Branched Aliphatic Aldehydes at Ambient Temperature
作者:Sven C. Richter、Martin Oestreich
DOI:10.1002/chem.201902082
日期:2019.6.26
secondary aliphatic aldehydes. The new methodology mimics the biosynthetic decarbonylation pathway through oxidative C−C bondcleavage rather than the C(O)−Hbond activation known from conventional Tsuji–Wilkinson‐type reactions. The substrate scope is complementary to existing transition‐metal‐catalyzed protocols.
environmentally friendly approaches for the direct coupling of alcohols with nitriles to assemble various important branched nitriles. The development of simple and efficient ligands is a crucial issue in this field. In this study, we designed a series of readily available N,N-bidentate ligands that demonstrated good efficiency in the Mn-catalyzed BH reaction of alcohols and nitrile derivatives, yielding the targeted
Efficient Solvent-Free Selective Monoalkylation of Arylacetonitriles with Mono-, Bis-, and Tris-primary Alcohols Catalyzed by a Cp*Ir Complex
作者:Christian Löfberg、Ronald Grigg、Mark A. Whittaker、Ann Keep、Andrew Derrick
DOI:10.1021/jo061113p
日期:2006.10.1
Our objectives were to develop catalytic atom-economic processes accessing and/or incorporating versatile functionality using aryl/heteroaryl acetonitriles as substrates. We report essentially solvent-free [Cp*IrCl2](2) catalyzed redox neutral processes whereby substituted acetonitriles react with primary alcohols to deliver monosubstituted aryl/heteroaryl acetonitriles in excellent yield. We further demonstrate that such processes can be achieved by conventional or microwave heating and that bis- and tris-primary alcohols are also processed efficiently.