Equiv相关论文
Zinc is second only to iron content in the body of a kind of important trace elements,in the present study,the zinc ion(......
A novel colorimetric cation sensor bearing phenol,thiol and HC=N groups was designed and synthesized.In a DMSO/H_2O(9:1,......
<正> Let f(t) be a periodic function, with period 2π and integrable in the sense of Lebesgue over (-π,π). Suppose tha......
在二甲基乙酰胺(DMAc)中,醇与SOCl_2在室温下反应,高产率地得到相应的氯代烃.为氯代烃的合成提供了一种新的方法.
In dimethylace......
A series of V-type chromophores with electron-rich heterocyclevinylene bridges have been synthesized via Wittig-Horner-E......
Synthesis, structure and catalytic behavior of ytterbium complexes bearing a phenoxy(quinolinyl)amid
Two ytterbium complexes stabilized by phenoxy(quinolinyl)amide ligand 3,5-Bu t 2 -2-OC 6 H 2 CH 2 N-8-C 9 H 6 N (L) were......
A Cu(Ⅰ)-catalyzed one-pot tandem reaction of 2-bromobenzyl bromides with 1,3-dicarbonyl compounds leading to 4H-chromen......
Indole cyanation via C-H bond activation under catalysis of Ru(Ⅲ)-exchanged NaY zeolite(RuY) as a re
Selective 3-cyanation of indoles was achieved under heterogeneous catalysis of Ru(Ⅲ)-exchanged NaY zeolite(RuY) as a re......
An efficient one-pot procedure for the synthesis of multisubstituted xanthone derivatives using Fe-catalyzed reactions o......
An effective and environmentally benign benzylic oxidation for transition of alkylarenes into the corresponding carbonyl......
(3S,4R)-Bengamide E(2) was synthesized starting from D-glucono-δ-lactone(3) and the key deoxygenation step from 13 to 1......
Free radical fluoroalkylation of terminal alkenes and alkynes with iododifluoromethanesulfonamides has been successfully......
Two tribranched chromophores,1,3,5-triazine as electron deficient core,9,9-dimethylfluorene asπ-conjugated bridge, diph......
Efficient preparation of trans-α,β-unsaturated aldehydes from saturated aldehydes by oxidative enami
A mild and highly efficient amine-catalyzed,IBX-mediated oxidation of aldehydes to(E) selective α,β-unsaturated aldehy......
Synthesis and antiviral bioactivities of novel chiral bis-thiourea-type derivatives containing α-ami
Starting from 1-((1R,2R)-2-aminocyclohexyl)-3-substituted thioureas (3a–c) and substituted isothiocyanates (9a–d),chir......
A series of novel imidazolium based ionic liquids containing the urea moiety were designed and synthesized for anion rec......
SmI_2-promoted imino-Reformatsky reaction for facile synthesis of enantioenriched β-amino acid ester
A facile and efficient method for the stereoselective synthesis of β-amino acid esters via SmI2-promoted imino-Reformat......
Imidazolium ionic liquid-supported sulfonic acids:Efficient and recyclable catalysts for esterificat
Several imidazolium ionic liquid(IL)-supported sulfonic acids with different anions,[C_3SO_3Hmim]HSO_4,[C_3SO_3Hmim]BF_4......
Novel clicked tetrathiafulvalene-calix[4]arene assemblies:Synthesis and intermolecular electron tran
Two tetrathiafulvalene-calix[4]arene assemblies(TTF-calix-1 and TTF-calix-2) have been synthesized by the click reaction......
Efficient synthesis of unsymmetrical diaryl thioethers via TBAF-mediated denitrative substitution of
Tetrabutylammonium fluoride(TBAF) effectively facilitated a denitrative substitution reaction of electron-deficient nitr......
Synthesis and Crystal Structure of Novel Mixed-metal Alkoxide Clusters of Ytterbium and Sodium: Yb_4
The mixed-metal cluster Yb4O4(OiPr)16Na12 has been synthesized and structurally determined by IR, elemental analysis, an......
Two new compounds(1 and 2)based on indole were successfully synthesized and characterized.They display highly selective ......
ETHYLENE POLYMERIZATION AND ETHYLENE/HEXENE COPOLYMERIZAION WITH VANDIUM CATALYSTS BEARING THIOPHENO
Vanadium(Ⅲ) complexes bearing thiophenol-phosphine ligands (2a-2b) (2-R-6-PPh2-C6H2S) VCl2(THF)2 (2a: R=H; 2b: R=Me3Si)......
A family of novel bifunctional organocatalysts:Highly enantioselective alcoholysis of meso cyclic an
A family of novel squaramides/sulfamides based on 1,2-alkamine was developed as chiral bifunctional catalysts to promote......
A highly selective colorimetric sensor for Hg~(2+) based on a copper (Ⅱ) complex of thiosemicarbazon
By applying an indirect strategy, a new copper (Ⅱ) complex of a thiosemicarbazone L has been successfully developed as ......
Sulfonic acid functionalized pyridinium chloride [pyridine-SO3 H]Cl has been synthesized as a novel Brnsted acidic ion......
报道一种以间苯二酚为起始原料,通过傅-克酰基化、成吡喃环、羟醛缩合、氧化-重排-关环等五步反应,简洁、高效地合成天然吡喃异黄......
由3-甲酰基-9-乙基咔唑和吡啶2-甲酰肼缩合制备了一种基于咔唑的结构简单的探针分子1。探针1在CH3CN-H2O(9/1,v/v,HEPES 0.02 mol......
α, α’-Benzylidene bis(4-hydroxycoumarin) derivatives were readily prepared in a few minutes with good yields through......
Facile synthesis of bromoallenes via N-bromosuccinimide/CH_3SCH_3 for the bromination of propargyl a
A novel and convenient way has been developed for the preparation of bromoallenes from propargyl alcohols by the reagent......
A novel reaction of trimethylsilylated arylacetylenes with sulfonyl chlorides was performed in the presence of silver ni......
An effective method for the synthesis of vinyl thioethers through the conjugate addition of ethanethiol to electron-defi......
Direct N-gem-difluorocyclopropylation of nitro-heterocycles by utilizing gem-difluorocyclopropyl tos
We have developed an efficient method to achieve N-gem-difluorocyclopropylation of N-heterocycles with the use of gem-di......
Enantioselective synthesis of functionalized fluorinated dihydropyrano[2,3-c]pyrazoles has been achieved via a diaminocy......
We describe here a rapid process for the preparation of new 9-chloromethyl-12-aryl-10,12-dihydrobenzo[5,6]chromeno[2,3-d......
A facile,one-pot synthesis of N-aryl propargylamine from aromatic boronic acid,aqueous ammonia,and propargyl bromide has......
A simple and efficient approach to one-pot synthesis of mono- and bis-N-aryl-3-aminodihydropyrrol-2-
An efficient and straightforward procedure has been developed for the synthesis of highly substituted mono- and bis-N-ar......
Highly efficient regioselective ring openings of N-tosylaziridines to haloamines using ferric(Ⅲ) hal
FeX3(X = Cl, Br) were found to be very effective reagents and powerful catalysts for regioselective ring openings of a v......
An efficient preparation of imidazolines from nitriles and aziridines in the presence of TfOH via Ritter reaction is des......
Organoactinide complexes containing terminal metal-ligand multiple bonds have received widespread attention over the pas......
High efficient probes with Schiff base functional receptors for hypochlorite sensing under physiolog
A series of novel and convenient fluorescent probes with Schiff base functionality were presented for direct detection o......
In the transition metal-catalyzed cross-coupling reactions,phenol and enol derivatives activated by phosphorus groups ar......
Nucleophilic imidoesterification of dicarbonyl compounds with cyanatobenzenes through C-C bond forma
Under neat conditions,an efficient method for synthesis of imidoesters has been developed using cyanatobenzenes and dica......
Highly efficient and magnetically separable nano-CuFe_2O_4 catalyzed S-arylation of thiourea by aryl
The non-toxic and magnetically separable nano-CuFe_2O_4 catalyzed synthesis of symmetrical aryl sulfides by the reaction......
The(COCl)2 /Hantzsch ester is found to be an effective system for the metal-free reduction of tertiary phosphine oxides.......
The asymmetric desymmetrization of cyclic anhydrides via the addition of carbon-based nucleophiles has been the focus of......
A convenient and efficient protocol for the synthesis of unnatural N-glycosyl a-amino acids was developed.Condensation o......
A catalytic addition of amine N H bonds to carbodiimides using aluminum chloride as a Lewis acid catalyst is developed.T......
