نتایج جستجو برای: isatin imines

تعداد نتایج: 3429  

2009
Gang Chen Bin Liu Ying Tang Jingfang Xu

The title compound, C(13)H(15)NO(3), was synthesized by the Aldol reaction of isatin and 3-methyl-butan-2-one refluxing in methanol catalyzed by dimethyl-amine. The packing of the mol-ecules in the crystal structure features inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.

Journal: :Synlett 2014

Journal: :Turkish journal of medical sciences 2015
Selma Arzu Vardar Orkide Palabiyik Ruhan Deniz Topuz Elif Ezgi Gürel Semra Çalişkan Serap Topçu Özen Necdet Süt Çetin Hakan Karadağ

BACKGROUND/AIM Atrial natriureticpeptide (ANP) is known as a protective agent against ischemia-reperfusion injuryfor cardiomyocytes. We compared the hemodynamic effects of ANP and isatin, which is known as an ANP receptor blocker, in ischemia followed by reperfusion in exercised rat hearts with nonexercised ones. MATERIALS AND METHODS Isolated hearts were perfused in 4 exercised (E) groups af...

Journal: :chemistry of solid materials 2013
p. rahimi a. khorshidi س. شریعتی

oxidation reaction of indole to isatin was performed in the presence of fe3o4 nanoparticles (as catalyst) and commercial grade perhydrol (as oxidant). magnetite nanoparticles were synthesized via chemical precipitation method and characterized by xrd and tem techniques. the efficiency of reaction was obtained from gc analysis of the mixture. the catalyst was easily separated from the reaction m...

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2021

Nanodroplets of sulfur-stabilised copper nanoparticles effectively catalyse the aerobic oxidation amines to imines under ambient conditions.

2010
F. Nawaz Khan S Mohana Roopan Sriramakrishnaswamy Kone Venkatesha R. Hathwar M. Khawar Rauf

In the title compound, C(18)H(11)ClN(2)O(2), the isatin and 2-chloro-3-methyl-quinoline units are both almost planar, with r.m.s. deviations of 0.0075 and 0.0086 Å, respectively, and the dihedral angle between the mean planes of the two units is 83.13 (7)°. In the crystal, a weak inter-molecular C-H⋯ O inter-action links the mol-ecules into chains along the c axis.

2014
V. Karthikeyan V. Ramkumar R. Joel Karunakaran

In the title compound, C30H31N3O2S, the fused pyrrolidine ring bearing three substituents adopts an envelope conformation with the C atom bearing the benzoyl group as the flap. The other fused pyrrolidine ring adopts a twisted conformation about one of its C-C bonds. The dihedral angle between the isatin ring system and the methyl-thia-zole ring is 25.95 (8)°. An intra-molecular C-H⋯O inter-act...

Journal: :Chemical communications 2014
Yan Liu Hong-Hao Zhang Yu-Chen Zhang Yan Jiang Feng Shi Shu-Jiang Tu

An organocatalytic asymmetric allylation of 3-indolylmethanol has been established via hydrogen-bond activating mode, which directly assembles isatin-derived 3-indolylmethanols and o-hydroxystyrenes into chiral allyl-substituted oxindoles with one all-carbon quaternary stereogenic center and one newly formed C=C bond in excellent enantioselectivity and (Z)-selectivity (up to 97% ee, >20 : 1 Z/E...

Journal: :NIPPON KAGAKU KAISHI 1936

Shahryare Ghammamy

The aim of the present study is to synthesize the oxovanadium complex of the V3+ ion with isatin sciff bases. Spectroscopic methods have been used to confirm these models of complexation and to understand the structures of the species formed in methanolic solution. We also have isolated a complex of Vanadium (III) with isatin schiff bases in the solid phase.

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