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ChemInform Abstract: CuX2 (X: Cl, Br) as Catalysts for Pechmann Reaction: Synthesis of 4-Substituted Coumarins.

✍ Scribed by Yi Wang; Feng Xu; You-Ping Tian; Hui-Li Li; Jian-Jun Wang


Publisher
John Wiley and Sons
Year
2009
Weight
30 KB
Volume
40
Category
Article
ISSN
0931-7597

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## Abstract Polyaniline‐supported TosOH or FeCl~3~ appear to be useful, reusable catalysts for the Prins cyclization of homoallylic alcohols with aromatic aldehydes as well as the synthesis of dioxanes (VIII) via condensation of terminal olefins with paraformaldehyde.