A Rapid and Convenient Synthesis of Oximes in Dry Media under Microwave Irradiation

Hajipour, Abdol R.; Mallakpour, Shadpour; Imanzadeh, Gholamhasan

doi:10.1039/a806359a

Cited by 77 publications

(30 citation statements)

References 10 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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“…All of the products except for 3g were known compounds and their structures were confirmed by comparison of their melting points, 1 H-and 13 C-NMR and IR spectra with reported data [5,[14][15][16][17][18]. The use of other amines replacing ethylenediamine was studied under the same conditions.…”

Section: Methodsmentioning

confidence: 97%

“…Oximes were usually prepared by the reaction of carbonyl compounds and hydroxylamine hydrochloride with adjustment of pH using a basic aqueous medium. Recently, some new techniques such as microwave irradiation [5] and solventfree heating [6] were applied to this reaction. Oxidation of amines or hydroxylamines was another usual method for the synthesis of oximes [7].…”

Section: Introductionmentioning

confidence: 99%

Efficient Preparation of Aldoximes from Arylaldehydes, Ethylenediamine and Oxone® in Water

Xia

Wang

2007

Molecules

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“…Inorganic oxides such as silica and various types of alumina have been used for the synthesis of different types of imides. [124][125][126] Montmorillonite clays were also used as support and catalyst for a variety of organic reactions, offering several advantages over other supports. For example, the strong acidity, noncorrosive properties, cheapness, the requirement of mild reaction conditions, high yields and selectivity, and the easy working up.…”

Section: Scheme 22mentioning

confidence: 99%

Microwave-promoted synthesis of cyclic imides

Perillo¹,

Shmidt²,

Prieto³

et al. 2018

Arkivoc

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Cyclic imides have been extensively investigated because of the wide range of biological activities they exert, as well as due to their importance as synthetic intermediates. Nowadays, focus has been placed on this important class of compounds for their potential new applications, especially in the area of pharmaceutical chemistry. Consequently, the strategies applied for the synthesis of these compounds have attracted considerable attention. Several innovative methodologies have been developed to obtain and functionalize this class of compounds. The use of microwave heating, which is an environmentally harmless strategy, has been making successful inroads in many chemistry areas, such as organic synthesis. Herein we present an update of the microwave-promoted methods for the synthesis of cyclic imides.

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A Rapid and Convenient Synthesis of Oximes in Dry Media under Microwave Irradiation

Cited by 77 publications

References 10 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

Efficient Preparation of Aldoximes from Arylaldehydes, Ethylenediamine and Oxone® in Water

Microwave-promoted synthesis of cyclic imides

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