نتایج جستجو برای: hydrolysis of nitriles
تعداد نتایج: 21165513 فیلتر نتایج به سال:
Ferric hydrogensulfate catalyzed the synthesis of 5-substituted 1H-tetrazoles via [2 + 3] cycloaddition of nitriles and sodium azide. This method has the advantages of high yields, simple methodology, and easy workup. The catalyst can be recovered by simple filtration and reused delivering good yields. Also, ferric hydrogensulfate catalyzed the hydrolysis of nitriles to primary amides under aqu...
An efficient palladium-catalyzed synthesis of 3-acylindoles using free (N-H) indoles and nitriles has been developed. The acylation reaction proceeded well under the Pd(OAc)(2)/2,2'-bipyridine system and with D-(+)-camphorsulfonic acid as the additive. A possible mechanism involving carbopalladation of nitriles and subsequent hydrolysis of ketimines is proposed.
Biocatalysts display a remarkable capability to function under normal temperature and pressure with high specificity and are poten tially very economical. Bioconversion of nitri le compounds to a number of economically important compounds is described. A wide variety of microorganisms having the ability to metabolize different nitriles and discovered during the last two decades are described. ...
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,...
The hydrolysis of nitriles in presence of NaY zeolite under microwave irradiations gives corresponding amide in high yield in few minutes.
چکیده ندارد.
Nitriles are a diverse group of organic compounds with –C≡N as functional group. Most nitriles are slightly cytotoxic but some cause severe toxic effects. More than 120 naturally occurring nitriles without considering cyanogenic glycosides are present in terrestrial and marine habitats, especially in plant components such as almonds or other fruit pits. The most common group of naturally occurr...
reaction between 5-methyl-3-aminoisoxazole and ?-acetamidophenylsulpho-nylchloride yielded compound 1. hydrolysis of compound 1 gave a starting compound 4-methoxybenzal-?-5-methyl isoxazol-3-yl-sulphonamido aniline 2. the compound 2 on condensation with different aldehydes and potassium cyanide yielded the nitriles 3a-l. cyclocondensation between oxazolinone and compound 2 yielded imidazolines ...
Environmental conditions, e.g. pH and the presence of Fe are well known factors that influence the product profile of the myrosinase catalysed hydrolysis of glucosinolates. Depending on the plant genera, the species and tissue of origin myrosinase isoenzymes (thioglucohydrolase EC 3.2.1.147) have different characteristics in terms of MW, subunit composition and pI. However, the influence of the...
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