نتایج جستجو برای: aromatic nitro compounds
تعداد نتایج: 269337 فیلتر نتایج به سال:
Reduction of Aromatic Nitro Compounds and Thioketones with Sodium Telluride under Aprotic Conditions
Nitriles were found to be highly effective alkylating reagents for the selective N-alkylation of amines under catalytic hydrogenation conditions. For the aromatic primary amines, the corresponding secondary amines were selectively obtained under Pd/C-catalyzed hydrogenation conditions. Although the use of electron poor aromatic amines or bulky nitriles showed a lower reactivity toward the reduc...
The correlation between the 1%-NMR chemical shift of the aromatic ring carbon bearing the leaving group and the yield of nucleophilic aromatic displacement with no-carrier-added [ 18Flfluoride ion was evaluated. In comparison of structurally analogous compounds (fluoro, nitro and trimethylammonium substituted benzaldehydes, benzophenones and benzonitriles), the 13C-NMR chemical shift of the rea...
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