[EN] ALKYNYL DERIVATIVES AS MODULATORS OF METABOTROPIC GLUTAMATE RECEPTORS [FR] NOUVEAUC DERIVES ALKYNYL SERVANT DE MODULATEURS DE RECEPTEURS DE GLUTAMATE METABOTROPIQUES
[EN] ALKYNYL DERIVATIVES AS MODULATORS OF METABOTROPIC GLUTAMATE RECEPTORS [FR] NOUVEAUC DERIVES ALKYNYL SERVANT DE MODULATEURS DE RECEPTEURS DE GLUTAMATE METABOTROPIQUES
Sonogashira Reaction of Aryl and Heteroaryl Halides with Terminal Alkynes Catalyzed by a Highly Efficient and Recyclable Nanosized MCM-41 Anchored Palladium Bipyridyl Complex
A heterogeneous catalyst, nanosized MCM-41-Pd, was used to catalyze the Sonogashira coupling of aryl and heteroaryl halides with terminal alkynes in the presence of CuI and triphenylphosphine. The coupling products were obtained in high yields using low Pd loadings to 0.01 mol%, and the nanosized MCM-41-Pd catalyst was recovered by centrifugation of the reaction solution and re-used in further runs without significant loss of reactivity.
Sonogashira cross-coupling reactions with heteroaryl halides in the presence of a tetraphosphine–palladium catalyst
作者:Marie Feuerstein、Henri Doucet、Maurice Santelli
DOI:10.1016/j.tetlet.2005.01.044
日期:2005.3
Heteroaryl halides undergoes cross-couplings with alkynes in good yields in the presence of [PdCl(C3H5)]2/cis,cis,cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane as catalyst. A variety of heteroaryl halides such as pyridines, quinolines, a pyrimidine, an indole, a thiophene, or a thiazole have been used successfully. The reaction also tolerates several alkynes such as phenylacetylene and
在[PdCl(C 3 H 5)] 2 /顺式,顺式,顺式-1,2,3,4-四(二苯基膦甲基)环戊烷的存在下,杂芳基卤化物与炔烃进行交叉偶联,收率很高。已经成功地使用了各种杂芳基卤化物,例如吡啶,喹啉,嘧啶,吲哚,噻吩或噻唑。该反应还可以耐受几种炔烃,例如苯乙炔和一系列烷-1-炔醇。此外,该催化剂可在低负荷下与某些底物一起使用。
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
Efficient synthesis of substituted thieno[3,2-e]indoles
作者:Wim Van Snick、Wim Dehaen
DOI:10.1016/j.tet.2009.08.031
日期:2009.10
giving 7- and 8-substituted thieno[3,2-e]indoles, are described. The reaction of 4-iodo-5-(methylsulfonamido)benzothiophene with terminal alkynes gave 7-substituted thienoindoles using general Sonogashira reaction conditions. Reaction of 5-amino-4-iodobenzothiophene with internal acetylenes, using Larock's heterocyclization reaction conditions, gave 7,8-disubstituted thieno[3,2-e]indoles.
描述了5-氨基苯并噻吩衍生物与内部和末端乙炔的有效环化反应,得到7-和8-取代的噻吩并[3,2- e ]吲哚。使用常规的Sonogashira反应条件,4-碘-5-(甲基磺酰胺基)苯并噻吩与末端炔烃的反应得到7-取代的噻吩并吲哚。5-氨基-4-碘苯并噻吩与内部乙炔的反应,使用Larock的杂环反应条件,得到7,8-二取代的噻吩并[3,2- e ]吲哚。
Rhodium-Catalyzed Addition of Arylboronic Acids to Alkynyl Aza-Heteroaromatic Compounds in Water
作者:Mark Lautens、Masahiro Yoshida
DOI:10.1021/jo0205255
日期:2003.2.1
Alkynyl heteroaromatic compounds reacted with arylboronic acids to give addition products in the presence of a rhodium catalyst. The best results were obtained when a novel pyridine-substituted water-soluble phosphine ligand was used. The reactions proceed to give trisubstituted alkenes from various arylboronic acids and alkynyl heteroaromatic compounds with high regioselectivity. Only alkynes with