نتایج جستجو برای: 2 diamines

تعداد نتایج: 2526582  

Journal: :Journal of Biological Chemistry 1943

Journal: :Journal of Petroleum Research and Studies 2013

Journal: :Journal of Polymer Science Part A-1: Polymer Chemistry 1971

Journal: : 2022

This review provides detailed information on the synthesis, structure, properties, methods for studying, and areas of application conductive polymers synthesized basis phenylenediamines. Conductive based phenylenediamines are cationic salts highly conjugated by electrochemical or chemical oxidation. Chemical oxidative polymerization has led to formation various functional polymers. Depending re...

2015
Jesús Flores-Ferrándiz Rafael Chinchilla

Enantiomerically pure mono-N-Boc-protected trans-cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of α,α-disubstituted aldehydes to maleimides. Using a single enantiomer of the organocatalyst, both enantiomeric forms of the resulting Michael adducts bearing a new quaternary stereocenter are obtained in high yields, only by changing the reaction so...

Journal: :Molecules 2018
José R Martínez-Guillén Jesús Flores-Ferrándiz Cecilia Gómez Enrique Gómez-Bengoa Rafael Chinchilla

Primary amine-salicylamides derived from chiral trans-cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of α,α-disubstituted aldehydes to arylated and heteroarylated nitroalkenes. The reaction is performed in the presence of 4-dimethylaminopyridine as an additive in dichloromethane as a solvent at room temperature. The corresponding enantioenriched...

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