A Simple Synthesis of Oximes

Damljanović, Ivan; Vukićević, Mirjana; Vukićević, Rastko D.

doi:10.1007/s00706-005-0427-3

Cited by 62 publications

(50 citation statements)

References 16 publications

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“…A number of catalysts have been documented, such as TiO 2 /SO 4 −2 [10], ZnO [11], CuSO 4 and K 2 CO 3 [12], glycine [13], CaO [14], silica gel [15], or without any base, but coupled with microwave irradiation [16], MW [17], K 2 CO 3 /MW [18], wet basic Al 2 O 3 /MW and molecular sieve 4Å [19], NaOH [20], Ionic Liquid/water Biphasic System [21], silicaphos (P 2 O 5 /SiO 2 ) [22], and HPA [23]. Many methods are not very satisfactory due to drawbacks such as low yields, problems of generation of polluting HCl, high reaction temperature, long reaction time, and use of organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Emeraldine Base Form of Polyaniline Nanofibers as New, Economical, Green, and Efficient Catalyst for Synthesis of Z-Aldoximes

Boddula

Srinivasan

2014

Journal of Catalysts

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A facile, clean, economical, efficient, and green process was developed for the preparation of Z-aldoximes at room temperature under solvent-free condition using emeraldine base form of polyaniline as novel catalyst. In this methodology, PANI base absorbed the by-product of HCl (polluting chemical) from hydroxylamine hydrochloride and converted to polyaniline-hydrochloride salt (PANI-HCl salt). This PANI-HCl salt could be easily recovered and used in new attempts without any purification in many areas such as catalyst, electrical and electronics applications meant for conducting polymers. As far as our knowledge is concerned, emeraldine base as catalyst in organic synthesis for the first time.

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Section: Introductionmentioning

confidence: 99%

Emeraldine Base Form of Polyaniline Nanofibers as New, Economical, Green, and Efficient Catalyst for Synthesis of Z-Aldoximes

Boddula

Srinivasan

2014

Journal of Catalysts

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“…They can be synthetized through some reaction routes that include many functional groups. The most used method for the synthesis involves the addition of hydroxylamine (NH 2 OH) to aldehydes and ketones in order to form aldoximes and ketoximes (Damljanović;Vukićević;Vukićević, 2006). This reaction is initiated by the nucleophilic attack of hydroxylamine on carbonyl, followed by dehydration of the compound, and thus obtaining oximes (Araújo;Gonsalves, 2015).…”

Section: Reactivation Processes: Oximesmentioning

confidence: 99%

Enzimas degradantes de organofosforados: Base molecular e perspectivas para biorremediação enzimática de agroquímicos

et al. 2017

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RESUMO Muitos compostos organofosforados (OP) são utilizados até hoje na agricultura como pesticidas e, infelizmente, como agentes de guerra química (ou agentes dos nervos) também. Os pesticidas organofosforados e os agentes dos nervos são moléculas extremamente tóxicas, uma vez que atuam como inibidores da enzima Acetilcolinesterase (AChE). O efeito mais preocupante da exposição a estes compostos é a toxicidade colinérgica aguda, ou seja, a perda de coordenação muscular. Uma vez que o indivíduo se contamina, o processo de intoxicação começa através da ligação do OP no sítio ativo da enzima AChE inativando-a. Os tratamentos atuais para pessoas expostas a baixas doses de OP podem ser realizados com atropina, oximas e benzodiazepínicos. Processos de remediação importantes envolvem o emprego de técnicas de biorremediação utilizando diferentes enzimas degradantes, como a Fosfotriesterase da Agrobacterium radiobacter e SMP-30. Devido ao elevado número de intoxicações anualmente, é crucial buscar métodos de tratamento mais potentes e eficazes, e nesta linha, as técnicas envolvendo biorremediação parecem ser bastante promissoras para este propósito.

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“…For the synthesis of brominated aromatic compounds, Br2 is the traditional reagent. Improved mild brominating agents with convenient usage have been developed in an organic solvent (1)(2)(3)(4)(5)(6)(7)(8), but the fundamental disadvantage for most of these methods is unwanted oxidation of sensitive functional groups. To eliminate such problems, NBS was used for brominating the aromatic compounds.…”

Section: Introductionmentioning

confidence: 99%

Oxidative bromination reaction using NBS and magnetic IBX

Ghanbari

Ghafuri

Zand

2017

Proceedings of the 21st International Electronic Conference on Synthetic Organic Chemistry

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Halogenated and brominated compounds are important groups of chemicals and have varied applications in several fields. Cross-coupling reactions in organic chemistry can be performed via aromatic functionalization process with halide aromatic compounds. Therefore, in coupling reactions like Heck, Suzuki, Sonogashira and hetero coupling reactions, halide compounds are the key fragments. Br2 is the old reagent for the formation of brominated compounds. Using Br2 caused to produce HBr as a corrosive chemical, need accurate control of temperature and control of amount of Br2. So, established better brominating agents have been developed in recent years. To this purpose, NBS was used for brominating reactions and several conditions in organic reactions have been reported to activate the halogenating ability of NBS. 2-iodoxybenzoic acid, IBX, has gained massive interest as an efficient and useful oxidant which can be used for the oxidation of alcohols. In addition of this, magnetic form of catalysts have more advantages compare to normal form of them due to their simply work-up procedures. So, to gain better nanocatalyst with the advantages of magnetic catalysts, we used a simple method to prepare magnetized IBX. To develop efficient catalysts for oxidation reaction, we report the catalytic application of a magnetized IBX as an efficient and recoverable catalyst in the presence of NBS for oxidation reaction.

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A Simple Synthesis of Oximes

Cited by 62 publications

References 16 publications

Emeraldine Base Form of Polyaniline Nanofibers as New, Economical, Green, and Efficient Catalyst for Synthesis of Z-Aldoximes

Emeraldine Base Form of Polyaniline Nanofibers as New, Economical, Green, and Efficient Catalyst for Synthesis of Z-Aldoximes

Enzimas degradantes de organofosforados: Base molecular e perspectivas para biorremediação enzimática de agroquímicos

Oxidative bromination reaction using NBS and magnetic IBX

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