نتایج جستجو برای: α amino nitriles
تعداد نتایج: 366199 فیلتر نتایج به سال:
The hydration of nitriles to amides is one of the basic transformations in organic chemistry However, it is not generally appreciated how diflicult this transformation is to carry out efficient13 since amides themselves undergo further hydrolysis to the acid. While nicotinamide and acrylamide are usually manufactured from the corresponding nitriles using metallic copper heterogeneous catalysts,...
Milieux hyperbasiques: Synthèse de cyclariones α-cyanées par cyclisation anionique d'amides-nitriles
The three title reductant systems have significant advantages in generating aldehydes from nitriles. These include: the utilization of convenient hydrogen sources, namely, sodium hypophosphite monohydrate and formic acid, respectively, and of the relatively inexpensive Raney nickel and Raney (Ni/Al) alloy; the convenience of conducting the reaction(s) in aqueous media at ambient temperatures an...
Spirohydantoins are considered privileged structures, making them attractive for the preparation of compound libraries with the potential for diverse biological activity. However, very few modifications of this scaffold have been reported to date. The spirohydantoin template was elaborated into a library of 168 compounds through a two-step solution-phase parallel synthesis starting from various...
A as textile dyes and the fastness properties of the dyed samples were measured. Most of the dyed fabrics tested displayed very good washing and perspiration fastness and series of 2-hydroxy- and 2-amino-6-substituted-5-arylazonicotinate monoazo compounds 7a-e and 9a-c were prepared via condensation of 3-oxo-3-substituted-2-arylhydrazonals 2a-e with active methylene nitriles 3a-d using microwav...
An NBS mediated nitriles synthesis through C=C double bond cleavage has been developed. TMSN3 was employed as the nitrogen source for this Cu(OAc)2 promoted nitrogenation reaction. This transformation has a relatively high regio-selectivity to form aromatic nitriles.
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