Annulation相关论文
报道了利用导向基策略实现Rh(Ⅲ)催化芳基偶氮苯与碳酸亚乙烯基酯的环化反应.该反应体系可以一步构建吲唑类化合物骨架.值得指出的......
通过铜催化N-(邻羟基苯基)苯乙酰胺的一锅串联亚甲基碳-氢键氧基化以及噁唑环化,实现了有用的2-酰基苯并噁唑类化合物的合成.除了......
A novel and viable palladium-catalyzed sequential cyclization/functionalization of alkynone O-methyloximes with unactiva......
Metallacycle Expansion and Annulation:Access to Tetrazolo-Fused Osmacycles by Reaction of Cyclic Osm
The reaction of a cyclic osmacarbyne complex with sodium azide led to the formation of a ring expansion-annulation produ......
Synthesis of 2-aminothiazoles via rhodium-catalyzed carbenoid insertion/annulation of sulfoxonium yl
Sulfoxonium ylides as carbene precursors couple smoothly with thioureas in the presence of 5 mol％ of rhodium(Ⅱ) acetate ......
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An N-Heterocyclic carbene-catalyzed enantioselective assembly of dihydrocoumarin through in situ act
3,4-Dihydrocoumarin derivatives have demonstrated promising biological activities as natural products and pharmaceutical......
Significant performance enhancement though annulation between inorganic module and organic ligands f
Mining,refining,and recycling of rare earths(REs)have serious environmental consequences and has already caused major en......
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α,β-Unsaturated compounds are of intensive interest as they are highly valuable intermediates for the synthesis of num......
在氧气氛围中,以2-芳基吲哚和N-乙酰基烯胺为原料,实现了一锅法快速构建三环吲哚啉稠环骨架化合物.该方法具有原料易得、操作简便......
Synthesis of π-extended dibenzo[d,k]ullazines by a palladium-catalyzed double annulation using aryne
An efficient Pd-catalyzed double annulation reaction of 1-(2,6-dibromophenyl)-1H-pyrroles with arynes is developed to sy......
Cascade reaction to 1H-pyrazoles from hydrazones via sodium Ni-trite promoted dual C–C/C–N formation
A novel route for tandem C–C/C–N formation, annulation and aromatization of hydrazones with 1,2-dichloroethane to synt......
Four types of unprecedented and chemodivergent reactions betweenα-diketones and alkynylα-diketones have been achieved ......
Oxidant and transition-metal-free photo-induced direct oxidative annulation of1-aryl-2-(furanthiophe
A few photo-induced dehydrogenative reaction have been reported,most of them need for oxidant or transition metal.Ou......
Electrochemical Selective Oxidative Synthesis of Diversified Sulfur Heterocycles from β-Ketothioamid
Main observation and conclusionrnA general and practical protocol for the construction of diversified sulfur heterocycle......
通过使用简单的Et3N催化容易获得的β-取代NH-烯胺酯和对甲苯磺酰叠氮的反应,高效实现了全取代的1,2,3-三氮唑的合成.在该方法中,......
An electron-deficient[CpERhCl2]2 catalyzed annulation of N-pentafluorophenylbenzamides with internal alkynes was success......
Convenient synthesis of hexasubstituted benzene derivatives via DABCO promoted domino reaction of ar
A convenient synthetic protocol for the hexasubstituted benzene derivatives was successfully developed by DABCO promoted......
Metal-Free Catalyzed Cyclization of N-Methoxybenzamides to Construct Quaternary Carbon-Containing Is
Main observation and conclusion Through the intramolecular cyclization of N-methoxybenzamides,a simple and efficient met......
A novel BF3-promoted [3+2] annulation of azonaphthalenes and ynamides is described. This protocol provides a modular and......
D-A环丙烷在Lewis酸的活化作用下,形成l,3-两性离子中间体,可以发生[3+n]形式环加成反应构建多元碳(杂)环、并环结构,已成为有机反......
Synthesis, Crystal Structure and Antibacterial Activities of 4-Methyl-2-(4-methylphenyl)-5-(2-thiazo
本文通过对荣华二采区10...
Stereoselective Synthesis of 1-Aminocyclopropanecarboxylic Acid Derivatives via Ylide Cyclopropanati
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Efficient Copper-Catalyzed Annulation of 2-Formylazoles with 2-Haloanilines for the Synthesis of Pyr
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Efficient Synthesis of Isoquinolines by AgNO3-Catalyzed Sequential Imination-Annulation of 2-Alkynyl
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Visible-Light-Catalyzed Phosphonation-Annulation: An Efficient Strategy to Synthesize β-Phosphonopyr
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Electrochemical Synthesis of (Aza)indolines via Dehydrogenative [3+2] Annulation: Application to Tot
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
以二乙酸碘苯（PIDA，2）为催化剂，分别由3，4-二甲氧基-α-（3，4-二甲氧苯基）一肉桂酸（5a）和（Z-2-（3，4-二甲氧苯基）-3-（3，4-二甲氧苯基）-丙烯腈（5b）为原料，......
研究了铑(III)催化芳甲酰乙腈与硫叶立德的[4+2]环化反应,合成了一系列的多取代萘甲腈,且该反应产率较高和官能团适应性好。该反应......
Making use of the high propensity of 2-cyano-2-cycloalkenones to undergo conjugate addition with various carbanions and ......
