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Unformatted text preview: Ar N N H S N H Ar` NH R` N 17 14 13 11 a,b
COOEt COOEt Fusion -H2O THF S S R Ar N N R` H N R N Ar O O N N N Ar` 15 12 a,b ORG-P16 SYNTHESIS OF PHENOXY BENZIMIDAZOLE: FLUORESCENCE PROPERTIES Noor Doha Hassan, Zanariah Abdullah and Hairul Anuar Tajuddin Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia E-mail: [email protected] A series of phenoxy benzimidazole was synthesized using 2 -chloromethylbenzimidazole. Phenol, p-cresol and m-cresol, were reacted with 2-chloromethylbenzimidazole to give 2-(phenoxymethyl)benzimidazole, 2-(4-methylphenoxy)metnylbenzimidazole, and 2-(3-methylphenoxy)methylbenzimidazole respectively. The structure of these compounds was 1 13 confirmed by H NMR, C NMR, IR and GC-MS. The fluorescence properties of the compounds in various solvents were studied. 205 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia ORG-P17 MCM-41-SO3H: A MILD AND EFFICIENT REUSABLE NANOREACTOR, NANOCATALYST FOR THE SYNTHESIS OF AMIDOALKYL NAPHTHOLS UNDER SOLVENT-FREE CONDITIONS
* Shahnaz Rostamizadeh, Fatemeh Abdollahi and Ali Mohammad Amani Department of Chemistry, Faculty of sciences, K.N.Toosi University of Technology, P.O.Box:15875-44166, Tehran, Iran E-mail: [email protected] Nowadays the direction of science and technology has been shifting more towards eco -friendly, natural product resources and reusable catalysts. One of the best-known examples is MCM-41, which is a structurally well-ordered mesoporous material with a narrow pore size distribution between 1.5 and 10 2 −1 nm, depending on the surfactant cation and a very high surface area up to 1500 m g . Very recently MCM-41-SO3H has been prepared and used as a Brønsted acid, by our research group for some acid catalyzed reactions. Different procedures for the syntheses of amidoalkyl naphthols have been reported in the literature such as using p-TsOH, Iodine, Montmorillonite K10, K5CoW12O40.3H2O and sulfamic acid. These protocols, however, suffer from...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.
- Spring '11