نتایج جستجو برای: trisubstituted imidazole

تعداد نتایج: 7707  

Journal: :Organic and Biomolecular Chemistry 2021

One-pot Fischer indolisation indole N-alkylation enables straightforward, rapid synthesis of structurally-diverse 1,2,3-trisubstituted indoles from simple, widely-available precursors.

Journal: :Chemical Science 2023

C–H olefination of alkynes has been realized as an efficient approach to access axially chiral trisubstituted olefins, where two classes arenes have identified.

Journal: :Chemical communications 2012
Ronald Grigg Elghareeb E Elboray Moustafa F Aly Hussien H Abbas-Temirek

3- And 9-component Pd(0) catalysed assembly of allenes, aryl iodides and N-nucleophiles with concomitant installation of trisubstituted Z-alkenes is readily achieved.

Journal: :Chemical communications 2003
Hongda Zhao Brian L Pagenkopf

The stereospecific and regioselective C(3) alkynylation of trisubstituted epoxides has been achieved with lithium alkynyl trimethylaluminium ate complexes in the presence of BF3 x OEt2.

Journal: :Chemical communications 2005
Yasushi Obora Masahiro Kimura Makoto Tokunaga Yasushi Tsuji

A variety of 1,1,2-trisubstituted-1H-indenes are synthesized by the reaction of aliphatic ketones, aryl-substituted alkynes and NbCl3(DME) in 1,2-dichloroethane under reflux conditions.

Journal: :Chemical communications 2009
Santiago Carballares Donald Craig Christopher J T Hyland Pengfei Lu Tanya Mathie Andrew J P White

The highly regioselective, stereospecific ring-opening of trisubstituted N-tosylaziridines possessing vinyl and hydroxymethyl groups by sulfone- and sulfide-stablised carbanions is reported.

Journal: :Journal of physics 2022

Abstract In this study, the molecular dynamics simulation of imidazole-modified polyacrylamide (VPAM) and (PAM) system showed that VPAM containing had better cohesion-bonding effect than PAM without imidazole. Based on imidazole-containing system, cohesion properties functional monomers mechanism in process were analyzed at high temperature salt, structure-activity relationships between chemica...

Journal: :Inorganics (Basel) 2021

Mono- and binuclear arene–ruthenium(II) complexes with imidazole-containing ligands were prepared by the reaction of (L1 = bis(imidazole-1-yl)methane; ImH 1H-Imidazole; BImH 1H-Benzimidazole) [(p-cym)Ru(µ-Cl)2]2 dimers. When bis(imidazole-1-yl)methane reacted in methanol, a complex type [Ru2(L1)2(p-cym)2Cl2]Cl2 (2) cyclic structure was synthesized, whereas using acetonitrile as solvent under sa...

Journal: :iranian journal of pharmaceutical sciences 0
farzin hadizadeh biotechnology and pharmaceutical research center, faculty of pharmacy, mashhad university of medical sciences, mashhad, iran mohammad ramezani biotechnology and pharmaceutical research center, faculty of pharmacy, mashhad university of medical sciences, mashhad, iran zahra tayarani biotechnology and pharmaceutical research cente maryam eghbal faculty of pharmacy, mashhad university of medical sciences, mashhad, iran

in view of potential biological activities of small molecule polyamides, we synthesized some novel n-(2-aminoethyl)-1-benzyl-2- (alkylthio)-1h-imidazole-5-carboxamide (7a,b), and n-(2-(1-benzyl-2-(alkylthio) -1h-imidazole- 5-carboxamido) ethyl)-1-benzyl-2- (alkylthio)-1h-imidazole-5-carboxamides (8a,b) as antitumor agents. the antitumor activity of compounds 7a,b and 8a,b was studied at concent...

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