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.
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North Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, IndiaNorth Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, India
Thongni, Aiborlang
Phanrang, Pynskhemborlang T.
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North Eastern Hill Univ, Ctr Adv Studies Chem, Computat Lab, Shillong, Meghalaya, IndiaNorth Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, India
Phanrang, Pynskhemborlang T.
Dutta, Arup
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North Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, IndiaNorth Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, India
Dutta, Arup
Nongkhlaw, Rishanlang
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North Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, IndiaNorth Eastern Hill Univ, Ctr Adv Studies Chem, Organ Synth Lab, Shillong, Meghalaya, India
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CSIR Natl Chem Lab, Div Organ Chem, Pune 411008, Maharashtra, India
Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, Uttar Pradesh, IndiaTezpur Univ, Dept Chem Sci, Napaam 784028, India