Abstract A synthetically useful Z ‐selective cascade formal thiyl radical addition, 1,3‐double bond isomerization, oxygen trapping reaction, can be promoted by Eosin B under visible light, leading to the construction of 2‐aryl‐ and alkylthio enone derivatives in good yields. An accurate study on reactivity different thiols screening reaction conditions, allowed us extend this a large number sub...

Abstract: By utilizing the characteristic features of vinylsulfides, 2-(alkylthio)allyl silyl ethers were designed as efficient ene substrates, and their use led to exploration of general carbonyl and imine ene reactions. By using 3-(alkylthio)-2-siloxyallyl acetates, a useful [3 + 2]cyclopentane annulation methodology was developed. Further, a tandem CC bond formation/cleavage methodology was ...

in the present study, an attempt has been made to synthesize 3-methyl-4-arylmethylene isoxazole-5(4h)-one derivatives through sonication of hydroxylamine hydrochloride, ethyl acetoacetate and benzaldehyde derivatives in the presence of imidazole as a novel and effective catalyst in aqueous media. this green reaction under ultrasound irradiation has advantageous compared to conventional procedur...

The tridentate dibasic Schiff base anthranilic acid salicylideneimine (H 2SB) reacts with VO Cl2 in the presence of NaO Ac and imidazole (or its derivatives) to form dimeric oxovanadium (IV) com plexes of the type [V O (SB )(D )]2. These green or yellow-green compounds have a magnetic m oment of 1.4 B.M. at room temperature, and are non-electrolytes in M eOH. The compounds are characterised on ...

UNLABELLED The carcinogenic glutamic acid pyrolysis products 2-amino-6-methyldipyrido [1, 2-a: 3', 2'-d]imidazole (Glu-P-1) and 2-amino-dipyrido [1, 2-a: 3', 2'-d] imidazole (Glu-P-2), and their N-acetyl derivatives were measured in 24-h urine of individual subjects by high-performance liquid chromatography. These compounds were detected in all urine samples analyzed, although the contents vari...

Condensation of 1-(9-alkyl-9H-carbazol-3-yl)-4-carboxy-2-pyrrolidinones with 2,3-diaminonaphthalene or o-aminophenol was carried out by melting a reaction mixture at 170–230 °C and provided new 2-substituted naphtho[2,3-d]imidazole and benzoxazole derivatives. Derivatives of 2-substituted naphtho[2,3d]imidazole were alkylated with an excess of ethyl iodide in the presence of potassium hydroxide...