Results 41 to 50 of about 25,716 (303)

Gas Transport in a Polymer of Intrinsic Microporosity (PIM-1) Substituted with Pseudo-Ionic Liquid Tetrazole-Type Structures

Macromolecules, 2020
We report a side group modification strategy to tailor the structure of a polymer of intrinsic microporosity (PIM-1). PIM-1 with an average of ∼50% of the repeat units converted to tetrazole is prepared, and a subsequent reaction then introduces three ...
M. Guiver, M. Yahia, M. Dal-Cin, G. Robertson, Sadaf Saeedi Garakani, Naiying Du, N. Tavajohi   +6 more
semanticscholar   +1 more source

Safe and Efficient Tetrazole Synthesis in a Continuous Flow Microreactor [PDF]

, 2011
Safer flow: The synthesis of 5-substituted tetrazoles in flow (see scheme) is safe, efficient, scalable, requires no metal promoter, and uses a near-equimolar amount of NaN[subscript 3], yet nonetheless displays a broad substrate scope.
Jamison, Timothy F., Palde, Prakash B.
core   +1 more source

X-Ray, IR, NMR, UV-visible spectra and DFT analysis of 5-aryloxy-(1H)-tetrazoles, structure, conformation and tautomerism [PDF]

, 2014
The predominant tautomeric forms of N1–H, N2–H of 5-(2,6-dimethyl- and 5-(2,6-diisopropylphenoxy)-(1H)-tetrazoles were analyzed at B3LYP method using 6-311G(d,p) basis set in the gas phase.
Alireza Dadrass, Ertan Şahin, Jannet Soleimannejad, Mohamed I. Mohamed Tahir, Mohammad Samim Enayati, Nader Noroozi Pesyan, Narges Ostadhosseini, Sadeghali Bavafa, Sajedin Hoseinpour   +8 more
core   +1 more source

Theoretical Studies on Mild Steel Corrosion Inhibition by 5-Substituted 1H-Tetrazoles in Acidic Media

International Journal of Electrochemical Science, 2019
In this theoretical study, calculations for the three types of the tetrazole which are 2-(1H-Tetrazole-5-yl)-3-phenylacrylonitrile, 2-(1H-Tetrazole-5-yl)-3-(4-nitrophenylacrylonitrile), and 2-(1H-Tetrazole-5-yl)-3-(4- hydroxyphenyl acrylonitrile) showing
Mahmud Ibrahim Elusta, Murat Alper Başaran, Fatma Kandemirli   +2 more
doaj   +1 more source

Crystal structure of methyl 2-[5-(2-hydroxyphenyl)-2H-tetrazol-2-yl]acetate

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title compound, C10H10N4O3, was synthesized by the esterification of hydroxyphenyl tetrazole. There is an intramolecular O—H...N hydrogen bond present involving the hydroxy group and the tetrazole ring.
Seul Gi Lee, Ji Yeon Ryu, Junseong Lee
doaj   +1 more source

New endoperoxides highly active in vivo and in vitro against artemisinin-resistant Plasmodium falciparum [PDF]

, 2018
Background: The emergence and spread of Plasmodium falciparum resistance to artemisinin-based combination therapy in Southeast Asia prompted the need to develop new endoperoxide-type drugs.
A Gómez-Zavaglia, A Ismael, A Ismael, A Paulo, A Siriwardana, AM Dondorp, AM Dondorp, António Sebastião Rodrigues, B Weniger, B Witkowski, B Witkowski, Bruno Guerreiro, C Amaratunga, C Amaratunga, D Ménard, EA Ashley, ES Schaffert, F Ariey, F Nogueira, F Teuscher, Fatima Nogueira, FG Baptista, H Noedl, H Noedl, H Singh, HM Ismail, I Fernández, J Adamec, J Jourdan, J Straimer, J Straimer, J Straimer, J Straimer, JL Vennerstrom, K Chauhan, K Chauhan, K Chotivanich, KM Tun, L Lobo, LH Carvalho, Lis Lobo, Lília I. L. Cabral, M Drąg-Zalesińska, M Machado, M Mota, M Tukulula, MA Fügi, Maria Inês Sena, Maria L. S. Cristiano, MD Spring, N Thuy-Nhien, NCP Araújo, PB Mohite, PM O’Neill, PN Soh, RJ Herr, RS Upadhayaya, S Arulmurugan, S Chaorattanakawee, S Nwaka, S Takala-Harrison, S Takala-Harrison, SA Santos, SD Fontaine, T Yang, TNC Wells, Valter Ferreira de Andrade-Neto, VS de Sena Pereira, W Peters, WA Kite, World Health Organization, X Fan, Y Lubell, Y Tang, Z Li, Z Wang   +75 more
core   +2 more sources

Síntese e modificações de derivados heterocíclicos de D-arabinose: potenciais inibidores de glicose-6-fosfato isomerase e de glicosamina-6-fosfato sintase Synthesis and modifications of heterocyclic derivatives of D-arabinose: potential inhibitors of glucose-6-phosphate isomerase and glucosamine-6-phosphate synthase

Química Nova, 2008
The synthesis of -5-(D-arabino-1,2,3,4-tetrahydroxybutyl)tetrazole and -2-(D-arabino-1,2,3,4-tetra-acetoxybutyl)-5-methyl-1,3,4-oxadiazole from D-arabinose is described.
Renato Márcio Ribeiro Viana, Maria Auxiliadora Fontes Prado, Ricardo José Alves   +2 more
doaj   +1 more source

Sigmatropic rearrangements in 5-allyloxytetrazoles [PDF]

, 2011
Mechanisms of thermal isomerization of allyl tetrazolyl ethers derived from the carbocyclic allylic alcohols cyclohex-2-enol and 3-methylcyclohex-2-enol and from the natural terpene alcohol nerol were investigated.
Abell, Abramovitch, Amin Ismael, Araújo, Araújo, Barkley, Basch, Becke, Bugalho, Bugalho, Cristiano, Cristiano, Cristiano, Cristiano, Daniela V. Coelho, Desarro, Dąbkowska, Frija, Frija, Frija, Frija, Frija, Frija, Frisch, Gu, Gómez-Zavaglia, Hashimoto, Head-Gordon, Igor Reva, Johnstone, Koldobskii, Lee, Luís M. T. Frija, M. Lurdes S. Cristiano, Mavromoustakos, McCarthy, Mishra, Pacios, Peng, Peng, Rui Fausto, Sandmann, Tamura, Toney   +43 more
core   +1 more source

Catalytic Tetrazole Synthesis via [3+2] Cycloaddition of NaN3 to Organonitriles Promoted by Co(II)-complex: Isolation and Characterization of a Co(II)-diazido Intermediate

ACS Omega
The [3+2] cycloaddition of sodium azide to nitriles to give 5-substituted 1H-tetrazoles is efficiently catalyzed by a Cobalt(II) complex (1) with a tetradentate ligand N,N-bis(pyridin-2-ylmethyl)quinolin-8-amine.
Archana Babu, Arup Sinha
semanticscholar   +1 more source

2-Methyl-3-{4-[2-(1H-tetrazol-5-yl)ethylamino]phenyl}-3H-quinazolin-4-one

Molbank, 2010
This present work aims at synthesizing a novel tetrazole from quinazolinone. 3-(4-Aminophenyl)-2-methyl-3H-quinazolin-4-one is converted into a nitrile by reacting it with acrylonitrile and triton B.
Helen P. Kavitha, Subramaniyan Arulmurugan   +1 more
doaj   +1 more source