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Efficient stepwise and one pot three-component synthesis of 2-amino-4-(2-oxo-2H-chromen-3-yl)thiophene-3-carbonitriles

โœ Scribed by Srikrishna, Devulapally; Dubey, Pramod Kumar


Book ID
126755126
Publisher
Elsevier Science
Year
2014
Tongue
French
Weight
561 KB
Volume
55
Category
Article
ISSN
0040-4039

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## Abstract magnified image Anhydrous zinc bromide catalysed reactions of arylidineโ€3โ€acetyl coumarins (**1aโ€c**) and 5,6โ€benzoanalogs of arylidine 3โ€acetyl coumarins (**4a,4b**) with 1,3โ€cyclohexanedione gives โ€(4โ€arylโ€5โ€oxoโ€5,6,7,8โ€tetrahydroโ€4__H__โ€chromenโ€2yl)โ€2__H__โ€chromenโ€2โ€ones (**3a, 3c**