نتایج جستجو برای: 2 diamines
تعداد نتایج: 2526582 فیلتر نتایج به سال:
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...
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...
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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