Tetrahedron Letters p. 9025 - 9028 (1999)
Update date:2022-08-30
Topics:
Labrosse, Jean-Robert
Lhoste, Paul
Sinou, Denis
Palladium-catalyzed cyclization of benzene-1,2-diol with various propargylic carbonates led to 2-alkylidene-1,4-benzodioxanes in excellent chemical yields. Diphosphines such as dppb, dpppe or dpph, and monophosphines are the best ligands.
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