Tetrahedron Letters p. 8285 - 8286 (1998)
Update date:2022-08-10
Topics:
Dalla, Vincent
Cotelle, Philippe
The reaction of tetramethylsalvianolic acid F3 with BBr3 led to the expected salvianolic acid F 2 in 10% yield. 2 underwent Diels-Alder cyclisation to 5 or cyclisation to benzofuran 6 depending on the reaction conditions.
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(1998)
