نتایج جستجو برای: mono and bis azodyes

تعداد نتایج: 16845678  

Journal: :The Biochemical journal 1972
W G Bardsley J S Ashford

1. The oxidation of p-dimethylaminomethylbenzylamine was followed spectrophotometrically by measuring the change in E(250) caused by the p-dimethylaminomethylbenzaldehyde produced. 2. This reaction was inhibited by substrate analogues such as isothiouronium, guanidino, dimethylsulphonium and trimethylammonium compounds. 3. The inhibition by both mono- and bis-onium compounds has been studied an...

2013
Maria C. Schwarz Navid Dastbaravardeh Karl Kirchner Michael Schnürch Marko D. Mihovilovic

ABSTRACT A Ru-catalyzed mono-arylation in α-position of saturated cyclic amines is reported employing a C-H activation protocol. Substitution of the pyridine directing group with a bulky group, e.g., trifluoromethyl in the 3-position, proved to be crucial to avoid bis-arylation. This highly selective transformation can be performed with different amines and arylboronate esters. Additionally, th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...

Journal: :Chemcatchem 2021

The efficacy of heterogeneous catalysis relies heavily on diffusion and distribution reactants within catalyst supports. However, the presence confinement, essential for reaction selectivity, drastically slows down molecular transport. Here, macro-mesoporous silica inverse opal (SiO2?IO) films were used as a model system to study rather unexplored infiltration behavior using probe molecule rese...

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