نتایج جستجو برای: imine
تعداد نتایج: 2790 فیلتر نتایج به سال:
The Cover Feature shows the formation of two face-directed truncated tetrahedral enantiopure organic cages by employing dynamic imine condensation reactions a hexa-aldehyde precursor with trans-oriented diamines separately. In view its intrinsic porosity combined presence multiple vicinal di-imine corners and stable aromatic backbones, one was used as template for nucleation ultrafine Pd-nanopa...
Acetaminophen, a common analgesic/antipyretic, is a frequent cause of acute liver failure in Western countries. The development of an effective cure against acetaminophen hepatotoxicity is crucial. Ethyl pyruvate, an ethyl ester derivative of pyruvic acid, has been identified as a possible candidate against acetaminophen hepatotoxicity in animal experiments. However, the mode of the hepatoprote...
Cooperative reductive double deprotonation of the complex [Rh(I)(bpa)(cod)](+) ([4](+), bpa = PyCH(2)NHCH(2)Py) with one molar equivalent of base produces the bimetallic species [(cod)Rh(bpa-2H)Rh(cod)] (7), which displays a large Rh(-I),Rh(I) contribution to its electronic structure. The doubly deprotonated ligand in 7 hosts the two "Rh(cod)" fragments in two distinct compartments: a "square p...
Vitamin B6 is an essential metabolite in all organisms. De novo synthesis of the vitamin can occur through either of two mutually exclusive pathways referred to as deoxyxylulose 5-phosphate-dependent and deoxyxylulose 5-phosphate-independent. The latter pathway has only recently been discovered and is distinguished by the presence of two genes, Pdx1 and Pdx2, encoding the synthase and glutamina...
Bu çal??ma, Türkiye’nin Do?u Anadolu Bölgesi’nde bulunan Tunceli ilinin ayn? ad? ta??yan ?ehir yerle?mesinin kurulu?u, mekânsal ve zamansal geli?iminde jeomorfolojik özelliklerin etkilerinin belirlenebilmesi amac?yla haz?rlanm??t?r. amaç do?rultusunda yerle?im alan?n?n geli?imine etki eden faktörler (jeolojik birimler, e?im, yükselti, bak?) de?erlendirilmi? haritaland?r?lm??t?r. Daha sonra 1984...
Broad scope one-pot diazirine synthesis strategies have been developed using two different oxidants depending on the nature of starting material. In all cases, an inexpensive commercial solution ammonia (NH3) in methanol (MeOH) was employed, avoiding difficult use liquid ammonia. With aliphatic ketones, t-butyl hypochlorite (t-BuOCl) found to be best oxidant whereas it is preferable phenyliodin...
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