Guo-Liang Feng

A Solvent‐Free Procedure for Synthesis of N‐Sulfonylimines Using Microwave Irradiation Catalyzed by ZrO2/S2O8 2− Solid Superacid

Abstract A solvent‐free synthesis of N‐sulfonylimines from aldehydes with sulfonamides is described using ZrO2/S2O8 2− as catalyst under microwave irradiation. This method is fast and high yielding for a range of substrates.

An Efficient and Practical Procedure for Synthesis of 1,1‐Diacetates from Aldehydes Catalyzed by Zirconium Sulfate Tetrahydrate–Silica Gel

Abstract A facile and efficient procedure for synthesis of 1,1‐diacetates from aldehydes with acetic anhydride was described using zirconium sulfate tetrahydrate–silica gel as catalyst in excellent yields under mild reaction conditions.

Synthesis of Diaryl Ketones Catalyzed by Al2O3‐ZrO2/S2O8 2− Solid Superacid

Abstract The acylation of a variety of aromatic compounds with benzoyl chloride or its derivatives and catalytic amounts of Al2O3–ZrO2/S2O8 2− solid superacid affords the corresponding diaryl ketones in good to excellent yields 75–93% at appropriate temperature.

One-pot, three-component route to spiropyrrolidine derivatives via a 1,3-dipolar cycloaddition reaction

A series of novel spiropyrrolidine derivatives were synthesised via three-component 1,3-dipolar cycloaddition reactions of 1-(1-methylpyrrole-2-yl)-3-aryl-2-cyano-1-propenones, isatin and sarcosine in refluxing methanol. The method affords a fast one-pot synthesis of spiroheterocycles in high yields. Their structures were established by 1H NMR, IR and elementary analysis.

An efficient and convenient method for the synthesis of aromatic sulfones catalysed by ZrO2/S2O82-solid superacid

A manipulatively simple and rapid procedure for the synthesis of diaryl sulfones from arylsulfonyl chlorides with aromatic compounds is described; the reaction is conducted under Friedel–Crafts conditions in the absence of solvent using ZrO2/S2O82- as catalyst in 78–93% yields.

An efficient and convenient procedure for preparation of N-sulfonylimines catalysed by TiO2/SO42- solid superacid

A facile synthesis of N-sulfonylimines in good to excellent yields was described from aldehydes with sulfonamides catalysed by TiO2/SO42- solid superacid.

Synthesis and optical properties of novel compounds containing carbazole and 1, 8-naphthalimide groups

A series of novel carbazole-naphthalimide compounds with moieties capable of carrier-balance and electroluminescence were synthesised and characterised, and theirs luminescent properties had been studied.

Synthesis of diacetals from aldehydes and ketones with pentaerythritol catalysed by the ZrO2/S2O82- solid superacid

A manipulatively simple and rapid procedure for the synthesis of diacetals from 2,2-bis(hydroxymethyl)-1, 3-propanediol with aldehydes and ketones in refluxing benzene or toluene using the ZrO2 /S2O82- solid superacid as catalyst in 80–98% yields has been described.

A facile synthesis of dispiro[indole-3,2'-pyrrolidine-3,5''-[1,3]thiazolane] derivatives from 2,3,5-trisubstituted-4-thiazolidinones via 1,3-dipolar cycloaddition reaction

A series of 2″,3″,4′-triaryl-1′-methyldispiro[indole-3,2′-pyrrolidine-3′,5″-[1,3]thiazolane]-2(1H),4″-dione derivatives were successfully synthesised via a three-component 1,3-dipolar cycloaddition reaction of 2,3,5-trisubstituted-4-thiazolidinones, isatin and sarcosine in refluxing toluene. Such a strategy would provide access to a fast one-pot synthesis of spiroheterocycle in high yields.

Synthesis of 3-cyano-2-(1 H -indol-3-yl)-6-(9-butylcarbazol-3-yl)pyridine derivatives by a multicomponent reaction under microwave irradiation

Preparation of a series of 3-cyano-2-(1H-indol-3-yl)-6-(9-butylcarbazol-3-yl)pyridine derivatives through the one-pot four-component coupling of aromatic aldehydes, 1-(9-butylcarbazol-3-yl)ethanone, 3-(cyanoacetyl)indole and ammonium acetate is reported. All these compounds were obtained in good yield and their structures were confirmed by 1H NMR and IR spectroscopy and by elemental analysis.