نتایج جستجو برای: n heterocyclic plumbylenes

تعداد نتایج: 981945  

Journal: :Chemical Communications 2008

Journal: :Angewandte Chemie International Edition 2020

Journal: :Chemistry: A European Journal 2023

Oxidative N-heterocyclic carbene (NHC) catalysis offers the chance to perform oxidative and oxygenative transformations which give rise various NHC-bound intermediates, paving way non-umpolung processes through activation of carbon atoms heteroatoms. The aim this review is discuss developments literature in field NHC-catalysis since 2014, with particular focus pivotal intermediates their mechan...

Journal: :Zeitschrift für anorganische und allgemeine Chemie 2021

Metathesis of N-heterocyclic chloroarsines with sulfur-based nucleophiles furnished thio-substituted 1,3,2-diazarsolidines and 1,3,2-diazarsolenes. Crystallographic NMR spectroscopic studies revealed that a thiocyanato-diazarsolene exhibits salt-like structure composed weakly interacting thiocyanate arsenium ions, while the remaining products formed neutral molecules. The structural data indica...

Journal: :nanochemistry research 2016
marzieh ghotbinejad ahmad r. khosropour iraj mohammadpoor-baltork majid moghadam shahram tangestaninejad

a powerful and convenient reaction procedure for the c-n coupling reaction (the buchwald-hartwig reaction), yielding products of n-arylanilines and n-arylamines in both conventional heating and microwave irradiation has been reported. the protocol utilizes a stable and new supper ferromagnetic nanoparticle chelating n-heterocyclic dicarbene palladium(ii) complex (pd-nhc) as catalyst which helps...

Journal: :The Journal of organic chemistry 2016
Arife Yazici Uta Wille Stephen G Pyne

Novel tricyclic bridged heterocyclic systems can be readily prepared from sequential 1,4- and 1,2-addition reactions of allyl and 3-substituted allylsilanes to indolizidine and quinolizidine α,β-unsaturated N-acyliminium ions. These reactions involve a novel N-assisted, transannular 1,5-hydride shift. Such a mechanism was supported by examining the reaction of a dideuterated indolizidine, α,β-u...

A. Foroumadi A. Mokhtari L. Firoozpour M. Safavi S. Moghimi

Cancer is a leading cause of death worldwide. Many heterocyclic cores are present in the structures of clinically approved anticancer drugs. Meanwhile, benzothiazoles have been reported as one of the most important heterocyclic scaffolds in previously reported anticancer agents in the literature. Therefore, in this report, a novel series of 2-phenyl benzothiazole derivatives was synthesized, bi...

Journal: :Chemical communications 2015
Andreas A Danopoulos Pierre Braunstein Elixabete Rezabal Gilles Frison

Unexpected and unprecedented directed remote lateral lithiation at one CH(CH3)2 of the 3-(2,6-di-isopropylphenyl) wingtip took place upon the reaction of functionalised N-heterocyclic carbene-type molecules with excess of LiCH2SiMe3, leading to dilithiated dianionic 4-amido-N-heterocyclic carbenes. DFT calculations show that the nature of the isolated species are under thermodynamic control.

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