Tetrahedron Letters p. 6477 - 6480 (1985)
Update date:2022-07-31
Topics:
Nagasawa, Kazuo
Kanbara, Hajime
Matsushita, Kazuya
Ito, Keiichi
Addition of organocerium(III) reagent, Cl2CeCH2COOt-Bu, to the appropriate ortho-methoxymethoxyacetophenones followed by acid treatment gives 5-substituted and 5,6-disubstituted 4-methylcoumarins in excellent yields.
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