Synthesis p. 879 - 881 (1991)
Update date:2022-08-03
Topics:
Kirkiacharian
Danan
Koutsourakis
Hydroboration followed by pyridinium chlorochromate oxidation of 4-alkyl- and 4-aryl-2H-chromenes [4-alkyl- and 4-aryl-(2H)1-benzopyrans] lead to the corresponding 4-substituted chroman-3-ones [4-substituted (2H)-1-benzopyran-3(4H)-ones] in good yields.
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(1956)