Results 51 to 60 of about 12,802 (158)

Structural investigation of nitrogen-linked saccharinate–tetrazole

, 2011
The molecular structure of nitrogen-linked saccharinate–tetrazole, N-(1,1-dioxo-1,2-benzisothiazol-3-yl)-amine-1H-tetrazole (BAT), was investigated in the crystalline state using X-ray crystallography and infrared and Raman spectroscopies, and isolated ...
Cabral, Lília, Gómez-Zavaglia, Andrea, Cristiano, Maria L. S., Paixão, J. A., Kaczor, Agnieszka, Ismael, Amin, Cristiano, Maria Lurdes Santos, A. Gómez-Zavaglia, J.A. Paixão, A. Ismael, M.L.S. Cristiano, Cabral, Lilia I.L., Kaczor, A., R. Fausto, L.I.L. Cabral, Paixão, Jose A., Gómez-Zavaglia, A., Fausto, Rui, A. Kaczor, Fausto, R.   +19 more
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Concise Synthesis of Tetrazole-Ketopiperazines by Two Consecutive Ugi Reactions [PDF]

, 2015
A concise route for the synthesis of the novel compound class tetrazole-diketopiperazines was developed. The approach involves the use of two multicomponent reactions: the Ugi tetrazole four-component reaction (4CR) and the classical intramolecular Ugi ...
Patil, Pravin, Herdtweck, Eberhardt, Dömling, Alex, Zarganes-Tzitzikas, Tryfon, Khoury, Kareem   +4 more
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Conversion of Zeolite-X into Various Ion Exchanged Forms and Investigation of their Catalytic Efficiency for the Synthesis of 5- Substituted 1H-tetrazole Derivatives

, 2022
We have developed lucid protocol for the synthesis of 5- substituted 1H-tetrazole derivatives under various aromatic aldehydes in presence of catalyst Zeolite H- X under solvent free condition.
Bhat, Sami Ullah
core   +1 more source

Combining the Ugi-azide multicomponent reaction and rhodium(III)-catalyzed annulation for the synthesis of tetrazole-isoquinolone/pyridone hybrids

Beilstein Journal of Organic Chemistry, 2019
An efficient sequence based on the Ugi-azide reaction and rhodium(III)-catalyzed intermolecular annulation has been established for the preparation of tetrazole-isoquinolone/pyridone hybrids.
Gerardo M. Ojeda, Prabhat Ranjan, Pavel Fedoseev, Lisandra Amable, Upendra K. Sharma, Daniel G. Rivera, Erik V. Van der Eycken   +6 more
doaj   +1 more source

Synthesis and physical-chemical properties of 6-(5-(1Н-tetrazole-1-ylmethyl)-4-R-1,2,4-triazole-3-ylthio)pyridin-3-amines and 6-((5-(1Н-tetrazole-1-yl)methil-4-R-1,2,4-triazole-3-ylthio)pyridin-3-yl)-(alk,ar,heter)ylmethanimines

Zaporožskij Medicinskij Žurnal, 2017
Over the past decade the number of publications, that contain different aspects of chemistry and use of triazoles and tetrazoles have been doubled and continues to grow. Puplications of recent years show that heterocycles with 1,2,3,4-teterazoles and 1,2,
Yu. S. Hulina, A. G. Kaplaushenko
doaj   +1 more source

Tetrazole functionalization: A new strategy toward stable ion-solvating polymer electrolytes for alkaline water electrolysis [PDF]

A new class of ion-solvating membranes based on a tetrazole functionalized vinyl copolymer is introduced. The membranes are prepared from poly(styrene-co-acrylonitrile), by converting the acrylonitrile groups to tetrazole pendants in a one-step click ...
Mikkel Rykær, Kraglund, Yifan, Xia, Dmytro, Serhiichuk, Jens Oluf, Jensen, Yogeshwaran, Krishnan, David, Aili, Heine Anton, Hansen, Sinu C., Rajappan   +7 more
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Crystal structures of (Z)-5-[2-(benzo[b]thiophen-2-yl)-1-(3,5-dimethoxyphenyl)ethenyl]-1H-tetrazole and (Z)-5-[2-(benzo[b]thiophen-3-yl)-1-(3,4,5-trimethoxyphenyl)ethenyl]-1H-tetrazole

Acta Crystallographica Section E: Crystallographic Communications, 2016
(Z)-5-[2-(Benzo[b]thiophen-2-yl)-1-(3,5-dimethoxyphenyl)ethenyl]-1H-tetrazole methanol monosolvate, C19H16N4O2S·CH3OH, (I), was prepared by the reaction of (Z)-3-(benzo[b]thiophen-2-yl)-2-(3,5-dimethoxyphenyl)acrylonitrile with tributyltin azide via a [3 
Narsimha Reddy Penthala, Jaishankar K. B. Yadlapalli, Sean Parkin, Peter A. Crooks   +3 more
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First Principle Study of Electronic Structure, Chemical Bonding and Optical Properties of 5-azido-1H-tetrazole

International Journal of Electrochemical Science, 2013
First principle calculations were performed to investigate the electronic band structure, density of states, charge density and optical properties of 5-azido-1H-tetrazole.
Saleem Ayaz Khan, A.H. Reshak
doaj   +1 more source

Cleavable β-cyanoethyl isocyanide in the Ugi tetrazole reaction [PDF]

, 2016
β-Cyanoethyl isocyanide is introduced as a cleavable isocyanide in the Ugi tetrazole reaction. Eleven examples are described that exhibit a broad scope and are obtained in good overall yields.
Kroon, Edwin, Dömling, Alexander, Katarzyna Kurpiewska (1508353), Alexander Dömling (1312329), Alexander Dömling, Edwin Kroon, Kalinowska-Tłuścik, Justyna, Edwin Kroon (3110565), Justyna Kalinowska-Tłuścik, Kurpiewska, Katarzyna, Katarzyna Kurpiewska, Justyna Kalinowska-Tłuścik (1508347)   +11 more
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4-[(2H-Tetrazol-2-yl)methyl]benzonitrile

Acta Crystallographica Section E, 2008
The title compound, C9H7N5, was synthesized by reaction of 4-(bromomethyl)benzonitrile and 2H-tetrazole in the presence of KOH. The relative orientation of the planar tetrazole ring and the methylbenzonitrile moiety is (−)-anticlinal.
Zhi-Rong Qu, Zheng Xing
doaj   +1 more source