A chemoselective and one-pot synthesis of 5-hydroxy and 7-hydroxy coumarin derivatives |
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| Authors: | Robabeh Baharfar Seyed M Vahdat and Fatemeh G Hakimabadi |
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| Institution: | (1) Department of Chemistry, University of Mazandaran, 47415 Babolsar, Iran |
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| Abstract: | Abstract An efficient one-pot reaction of dialkyl acetylenedicarboxylates with 2,4-dihydroxybenzo(or aceto)phenones in the presence
of triphenylphosphine produces 5-hydroxy- and 7-hydroxycoumarin derivatives. The novel procedure features short reaction time,
fairly good yields, and simple workup. |
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