نتایج جستجو برای: amidines

تعداد نتایج: 390  

Journal: :J. Chem. Soc., Trans. 1903

Journal: :New Journal of Chemistry 2022

In the presence of zinc( ii ), propionitrile and benzonitrile react with amines to form amidines. Complexes intact can also form.

Journal: :Chemical communications 2010
Debanjan Biswas Jeffrey R Deschamps Larry K Keefer Joseph A Hrabie

In contrast to amidines bearing ionizable alpha-CH bonds, which react with nitric oxide (NO) to add diazeniumdiolate groups at their alpha-carbons, benzamidine forms an N-bound diazeniumdiolate that can be further derivatized at the other amidine nitrogen and/or the terminal oxygen to form caged NO compounds as potential NO prodrugs.

Journal: :Organic & biomolecular chemistry 2008
Caroline Joannesse Carmen Simal Carmen Concellón Jennifer E Thomson Craig D Campbell Alexandra M Z Slawin Andrew D Smith

The structural requirements of amidines necessary to act as efficient O- to C-carboxyl transfer agents are delineated and the scope of this process outlined through its application to a range of oxazolyl, benzofuranyl and indolyl carbonates.

Journal: :Chemical communications 2011
Shan Xu Juyou Lu Hua Fu

A convenient and efficient copper-catalyzed cascade method has been developed for the synthesis of benzimidazoquinazoline derivatives via reactions of readily available substituted 2-(2-halophenyl)benzoimidazoles with amidines or guanidine under mild conditions (even at room temperature).

2009
Bibhesh K. Singh

The present review discuss about the structure, reactivity of various amidines. The complexation behavior of amidine especially aryl benzamidine with different metal ions has been discussed. This review article is useful for inorganic and bioinorganic chemist.

Journal: :Chemical Communications 2010

Journal: :Molecules 2005
Alejandra Salerno Isabel A Perillo

An analysis of the (1)H- and (13)C-NMR spectra of a series of 1,2-diaryl-1H-4,5-dihydroimidazoles and comparisons with 4,5-dihydroimidazoles having different substitution patterns are presented. The influence of different 1-aryl and 2-aryl group substituents on spectroscopic parameters of the heterocyclic ring and on the contributions of possible mesomeric structures in the system was determine...

Journal: :Chemical communications 2014
Jie Chen Yu-Ping Guo Ming-Hui Sun Guo-Tao Fan Ling Zhou

A new bromoform reaction of tertiary amines with N,N-dibromosulfonamides or NBS/sulfonamides has been developed. A series of amidines were prepared with moderate to good yields via a Csp(3)-Csp(3) bond cleavage.

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