Bangguo Wei

SYNTHESIS OF 2-(4-METHOXYLPHENYLOXY-ACETYLAMIDO)-5-ARYLOXYMETHYL-1,3,4-OXADIAZOLES UNDER MICROWAVE IRRADIATION

ABSTRACT 2-(4-Methoxylphenyloxyacetylamido)-5-aryloxymethyl-1,3,4-oxadiazoles (4a–h) are synthesized by cyclization of 1-aryloxyacetyl-4-(4-methoxylphenyloxyacetyl)-thiosemicarbazides (3a–h) in the presence of mercuric acetate under microwave irradiation.

PALLADIUM AND PHASE TRANSFER CATALYZED HECK CROSS COUPLING REACTION IN WATER UNDER MICROWAVE IRRADIATION

ABSTRACT Palladium-catalyzed vinylation of aryl halides in water without organic cosolvent via microwave irradiation under phase transfer conditions gives the trans-stilbenes and substituted trans-cinnamic acid in good to high yield.

Microwave-assisted copper catalyzed coupling reaction of aryl halides with terminal alkynes

ABSTRACT Coupling reaction of aryl halides with terminal alkynes using catalyst system of copper (I)-triphenylphosphine proceeds efficiently in the presence of potassium carbonate under microwave irradiation to give the corresponding unsymmetrical acetylenes in good yield.

Pd(II)‐Catalyzed Synthesis of Unsymmetrical Biaryls from Tetraphenylborate and Aryl Halides Under Microwave Activation

Abstract A rapid and efficient method for synthesis of unsymmetrical biaryls under microwave irradiation conditions is described. The process involves the reactions of sodium tetraphenylborate with aryl halides in the presence of catalytic amount [PdCl2(PPh3)2] with KF/Al2O3 under microwave irradiation to afford the unsymmetrical biaryls in good to excellent isolated yields.

A FACILE SYNTHESIS OF CONJUGATED ACETYL KETONES BY Pd(II)-Cu(I) DOPED KF/Al2O3-CATALYZED UNDER MICROWAVE IRRADIATION

A rapid and efficient method for synthesis of α,β-conjugated acetylenic ketones involves reaction ofphenylacetylene with aroyl chlorides in the presence of acatalytic amount Pd(PPh3)2Cl2-CuIdoped KF/Al2O3 under microwave irradiationto give the corresponding α,β-conjugated acetylenicketones 3a–g in 81–94% yield.

MICROWAVE-ASSISTED COUPLING REACTION BY COPPER(I)-CATALYZED OF TERMINAL ALKYNES WITH AROYL CHLORIDES

A rapid and efficient method for synthesis of α, β-conjugated acetylenic ketones involves reaction of phenylacetylene with aroyl chlorides in the presence of catalytic amount CuI under microwave irradiation to give the corresponding α, β-conjugated acetylenic ketones 3 a–i in 76–93% yields.

MICROWAVE PROMOTED PALLADIUM-CATALYZED PHENYLATION OF AROYL CHLORIDES AND SODIUM TETRAPHENYLBORATE

A rapid and efficient method for synthesis of unsymmetrical ketones involves reaction of sodium tetraphenylborate with aroyl chlorides in the presence of catalytic amount Pd(PPh3)2Cl2 under microwave irradiation to give the corresponding phenyl ketones 3a–j in 87–98% yield.

MICROWAVE INDUCED SYNTHESIS OF 2-(2-FUROYLAMIDO)-5- ARYLOXYMETHYL-1,3,4-THIADIAZOLES

2-(2-Furoylamido)-5-aryloxymethyl-1,3,4-thiadiazoles (IIa–j) are synthesized rapidly and efficiently under microwave irradiation conditions, using 1-aryloxyacetyl-4-furoyl-thiosemicarbazides (Ia–j) as starting materials.

A convenient synthesis of conjugated acetylenic ketones by copper(I)-catalysis under microwave irradiation

A rapid and efficient synthesis of conjugated acetylenic ketones is reported involving copper(I)-catalysed aroylation of phenylacetylene with aroyl chloride under microwave irradiation.