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Asymmetric Palladium-Catalyzed Annulation of Benzene-1,2-diol and Racemic Secondary Propargylic Carbonates Bearing Two Different Substituents.

✍ Scribed by Norbert Dominczak; Celine Damez; Bouchra Rhers; Jean-Robert Labrosse; Paul Lhoste; Boguslaw Kryczka; Denis Sinou

Publisher
John Wiley and Sons
Year
2005
Weight
32 KB
Volume
36
Category
Article
ISSN
0931-7597

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## Abstract Methyl 1‐methylprop‐2‐ynyl carbonate reacts with 3‐ and 4‐substituted benzene‐1,2‐diols to give 2,3‐dihydro‐3‐methyl‐2‐methylidene‐1,4‐benzodioxines, as a mixture of regioisomers in the case of methoxy‐substituted diphenol, and a single regioisomer for the nitro‐ and the formyl‐substitu