An efficient domino one-pot synthesis of novel spirofuran-indenoquinoxalines by vinyltriphenylphosphonium salts

An Efficient Synthesis of 4H-chromene Derivatives by a One-pot, Three-component Reaction

A facile and efficient one-pot, multicomponent synthesis of 4H-chromenes is reported, through the reaction of arylglyoxalmonohydrates with 1,3-diketones and malononitrile in eTEMPthanol in the presence of L-proline as a catalyst.

Straightforward one-pot synthesis of trifluoromethyl sulfonium salts.

Polyvinylpolypyrrolidone supported chlorosulfonic acid: An efficient catalyst for the one-pot synthesis of hexahydroquinolines

ABSTRACT Polyvinylpolypyrrolidone supported chlorosulfonic acid ([PVPP-SO3H]+Cl-) was synthesized and evaluated as a recoverable catalyst for the one-pot synthesis of hexahydroquinolines by reaction of arylaldehydes, dimedone (5,5-dimethylcyclohexane-1,3-dione) or 1,3-cyclohexanedione, ethylacetoacetate and ammonium acetate in high to excellent yield in ethanol at 70 °C. The [PVPP-SO3H]+Cl- cat...

An efficient one-pot synthesis of 2-aminothiazole derivatives

A highly efficient, rapid and catalyst free protocol has been developed for the synthesis of 2-aminothiazoles in tetrahydrofuran (THF). Reaction was carried out at room temperature and the products were obtained in high yields without further purification.

SbCl3 as an Efficient Catalyst for the One-pot Synthesis of Highly Substituted Piperidines

Highly substituted piperidines were synthesized via the condensation of aromatic aldehydes and aromatic amines with β-ketoesters in the presence of antimony(III) chloride at ambient condition. This reaction has any advantages such as easy work-up, clean procedure, and good yields.