Green Chemistry: New Synthesis of Substituted Chromenes and Benzochromenes via Three-Component Reaction Utilizing Rochelle Salt as Novel Green Catalyst

Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and 3-amino-1-aryl-1H-benzo[f]chromenes-2-carbonitriles (8) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes (1), malononitrile (2),...

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Published inOrganic chemistry International Vol. 2014; pp. 1 - 6
Main Author El-Maghraby, Awatef Mohamed
Format Journal Article
LanguageEnglish
Published Hindawi Publishing Corporation 01.01.2014
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Abstract Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and 3-amino-1-aryl-1H-benzo[f]chromenes-2-carbonitriles (8) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes (1), malononitrile (2), and resorcinol (3) or α-naphthol (4) or β-naphthol (5) in refluxing ethanol or water in the presence of Rochelle salt as novel green heterogeneous and reusable catalyst.
AbstractList Substituted 2-amino-4-aryl-7-hydroxy-4 H -chromene-3-carbonitriles ( 6 ), 2-amino-4-aryl-4 H -benzo[ h ]chromene-3-carbonitriles ( 7 ), and 3-amino-1-aryl-1 H -benzo[ f ]chromenes-2-carbonitriles ( 8 ) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes ( 1 ), malononitrile ( 2 ), and resorcinol ( 3 ) or α -naphthol ( 4 ) or β -naphthol ( 5 ) in refluxing ethanol or water in the presence of Rochelle salt as novel green heterogeneous and reusable catalyst.
Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and 3-amino-1-aryl-1H-benzo[f]chromenes-2-carbonitriles (8) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes (1), malononitrile (2), and resorcinol (3) or α-naphthol (4) or β-naphthol (5) in refluxing ethanol or water in the presence of Rochelle salt as novel green heterogeneous and reusable catalyst.
Author El-Maghraby, Awatef Mohamed
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Snippet Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and...
Substituted 2-amino-4-aryl-7-hydroxy-4 H -chromene-3-carbonitriles ( 6 ), 2-amino-4-aryl-4 H -benzo[ h ]chromene-3-carbonitriles ( 7 ), and 3-amino-1-aryl-1 H...
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Title Green Chemistry: New Synthesis of Substituted Chromenes and Benzochromenes via Three-Component Reaction Utilizing Rochelle Salt as Novel Green Catalyst
URI https://dx.doi.org/10.1155/2014/715091
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