نتایج جستجو برای: nitriles

تعداد نتایج: 1359  

Journal: :Nano Research 2022

Nitriles as efficient electrolyte additives are widely used in high-voltage lithium-ion batteries. However, their working mechanisms still mysterious, especially practical LiCoO2 pouch Herein, we adopt a tridentate ligand-containing 1,3,6-hexanetricarbonitrile (HTCN) an effective additive to shed light on the mechanism of stabilizing cathode (4.5 V) through nitriles. The LiCoO2/graphite cells w...

2015
G. Kenneth Windler Brian L. Scott Neil C. Tomson Philip W. Leonard

In the title compound, C5HN7, the nitrile and azido substituents are close to being coplanar with the central ring. Mol-ecules in the crystal are linked via an N-H⋯N hydrogen bond to a nitrile acceptor, forming a chain extending along the c-axis direction.

Journal: :Organic & biomolecular chemistry 2015
Song-Lin Zhang Lu Huang

A Cu(I)-catalyzed cyanation reaction of aryl iodides with α-cyanoacetates is reported herein, which uses α-cyanoacetates as the nontoxic and easy-handling CN source through copper-mediated C-CN bond cleavage. This reaction enables access to aryl nitriles with an array of functional groups on the aromatic ring in good to excellent yields.

Journal: :Chemical communications 2011
Masahito Murai Ryo Hatano Sachie Kitabata Kouichi Ohe

Treatment of arylacetylenes and cyanogen bromide in ClCH(2)CH(2)Cl with a catalytic amount of GaCl(3) afforded (Z)-β-bromoacrylonitriles with high regio- and stereoselectivity.

Journal: :Chemical communications 2016
Patricia Marcé James Lynch A John Blacker Jonathan M J Williams

A simple, mild and general procedure for the hydration of nitriles to amides using copper as catalyst and promoted by N,N-diethylhydroxylamine is described. The reaction can be conducted in water at low temperature in short reaction times. This new procedure allows amides to be obtained from a wide range of substrates in excellent yields.

Journal: :Journal of the American Chemical Society 2015
Nathaniel T Kadunce Sarah E Reisman

A Ni-catalyzed asymmetric reductive cross-coupling of heteroaryl iodides and α-chloronitriles has been developed. This method furnishes enantioenriched α,α-disubstituted nitriles from simple organohalide building blocks. The reaction tolerates a variety of heterocyclic coupling partners, including pyridines, pyrimidines, quinolines, thiophenes, and piperidines. The reaction proceeds under mild ...

Journal: :Chemical communications 2012
Kazuya Yamaguchi Kazuhisa Yajima Noritaka Mizuno

In the presence of manganese oxides, dehydrosulfurization of various kinds of primary thioamides including aromatic, heterocyclic, and aliphatic ones efficiently proceeded to give the corresponding nitriles in high yields. The observed catalysis was truly heterogeneous, and manganese oxides could be reused.

Journal: :Organic & biomolecular chemistry 2015
Yao-Feng Wang Jiashen Qiu Dejie Kong Yongtao Gao Feipeng Lu Pran Gopal Karmaker Fu-Xue Chen

The direct electrophilic α-cyanation of β-keto esters and amides has been developed using a hypervalent iodine benziodoxole-derived cyano reagent. The procedure is accomplished within 10 min and without the use of any catalyst in DMF, at room temperature. Thus, the highly functionalized quaternary carbon-centered nitriles were produced in high to excellent yields.

Journal: :Journal of combinatorial chemistry 2005
Ian R Baxendale Steven V Ley

A series of substituted aliphatic nitriles have been trimerized to their corresponding pyrimidine structures under solvent-free conditions in the presence of catalytic quantities of potassium tert-butoxide using a focused microwave reactor. Multigram quantities of the corresponding 4-aminopyrimidines have been prepared in high yields and purity following a simple and scaleable protocol.

Journal: :Chemical communications 2012
Andrey Y Khalimon Philip Farha Lyudmila G Kuzmina Georgii I Nikonov

The imido-hydrido complex (ArN)Mo(H)(Cl)(PMe(3))(3) catalyses a variety of hydroboration reactions, including the first example of catalytic addition of HBCat to nitriles to form the bis(borylated) amines RCH(2)N(BCat)(2). The latter species easily undergoes chemoselective coupling with aldehydes R'C(O)H to yield imines RCH(2)N=C(H)R'.

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