Basic ionic liquid HEAA catalysed one-pot synthesis of novel 2-amino-3-phenylsulfonyl-4H-pyrans derivatives. (1st December 2013) - Ding, Maohua
An efficient preparation of novel 2-amino-3-phenylsulfonyl-4H-pyrans derivatives is reported by the condensation of aromatic aldehydes, dimedone and phenylsulfonylacetonitrile in the presence of 2-hydroxyethyl ammonium acetate [H3N+CH2CH2OH] [CH3COO–] (HEAA) as suitable and efficient catalyst. This method offers some distinct advantages such as short reaction time, high yields, and simple procedure.