Iodine mediated synthesis of coumarins from chromenes
2015
Abstract Iodine mediated rapid conversion of 2-amino-3-cyano-4-aryl-4 H chromenes to the corresponding coumarins in the presence of water is described. Several chromenes are obtained in high yields without chromatographic purification. Under anhydrous conditions, 2-iminochromenes are obtained as major products.
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