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An efficient and convenient conversion of aldoximes and ketoximes to the corresponding carbonyl compounds with tetrameric DABCO–bromine complex is reported. [ABSTRACT FROM AUTHOR]

Hexamethylenetetramine-bromine supported onto silica gel rapidly converts trimethylsilyl ethers to their corresponding carbonyl compounds under microwave irradiation in solventless system. [ABSTRACT FROM AUTHOR]

Primary and secondary tetrahydropyranyl ethers (THP ethers) are converted to their corresponding carbonyl compounds efficiently using hexamethylene-tetramine-bromine supported onto silica gel under microwave irradiation in solvent-free conditions. [ABSTRACT FROM AUTHOR]

An environmentally benign, efficient, and mild methodology for the cleavage of phenylhydrazones using potassium ferrate under microwave irradiation in solvent-free conditions is described. [ABSTRACT FROM AUTHOR]

The efficient and environmentally friendly thiation of heter-ocycles using P2S5 under microwave irradiation in solvent free condition is described. [ABSTRACT FROM AUTHOR]

The efficient and environmentally friendly oxidative deprotection of trimethylsilyl ethers using zeofen under microwave irradiation in solvent free condition is described. [ABSTRACT FROM AUTHOR]

Primary and secondary trimethylsilyl ethers are effeciently converted to the corresponding carbonyl compounds using HZSM-5 zeolite-supported CrO3 under microwave irradiation in solventless system. [ABSTRACT FROM AUTHOR]

Adsorbed on silica gel. Dess-Martin periodinane can rapidly oxidize alcohols to the corresponding carbonyl compounds upon exposure to microwave under solvent-free condition. [ABSTRACT FROM AUTHOR]

In an environmentally benign system, alcohols are rapidly oxidized to carbonyl compounds using CrO 3 supported onto wet silica gel as an oxidant under microwave irradiation. [ABSTRACT FROM AUTHOR]

Abstract: A tetrameric DABCO–bromine complex was synthesized, characterized and utilized as a novel active bromine complex for the oxidation of alcohols to carbonyl compounds. [Copyright &y& Elsevier]

Abstract: Silica-supported bismuth(III) chloride (BiCl3/SiO2) has been successfully employed in the condensation of 1,2-dicarbonyls with a variety of arene-1,2-diamines bearing either electron withdrawing or donating functional groups. The catalyzed reaction proceeded smoothly under ambient temperature in methanol to give the corresponding quinoxaline and pyrido[2,3-b]pyrazine compounds in good to excellent yields. The catalyst exhibited remarkable reusable activity and higher catalytic performance than homogeneous BiCl3. A plausible mechanism for the catalytic action of BiCl3/SiO2 has been introduced. Moreover, the crystal structure of the prepared unsymmetrical benzo[N,N]-heterocycles has been determined by single crystal X-ray diffraction. [Copyright &y& Elsevier]