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Highly selective palladium-benzothiazole carbene-catalyzed allylation of active methylene compounds under neutral conditions. | LitMetric

Highly selective palladium-benzothiazole carbene-catalyzed allylation of active methylene compounds under neutral conditions.

Beilstein J Org Chem

Department of Chemistry, University of Bari Via Orabona 4, 70126 Bari, Italy ; CNR-ICCOM, Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy.

Published: July 2015

The Pd-benzothiazol-2-ylidene complex I was found to be a chemoselective catalyst for the Tsuji-Trost allylation of active methylene compounds carried out under neutral conditions and using carbonates as allylating agents. The proposed protocol consists in a simplified procedure adopting an in situ prepared catalyst from Pd2dba3 and 3-methylbenzothiazolium salt V as precursors. A comparison of the performance of benzothiazole carbene with phosphanes and an analogous imidazolium carbene ligand is also proposed.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4505175PMC
http://dx.doi.org/10.3762/bjoc.11.111DOI Listing

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