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A Ba/Pd Catalytic System Enables Dehydrative Cross-Coupling and Excellent -Selective Wittig Reactions. | LitMetric

A Ba/Pd Catalytic System Enables Dehydrative Cross-Coupling and Excellent -Selective Wittig Reactions.

Org Lett

School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Nanjing Tech University, Nanjing 211816, P. R. China.

Published: September 2019

A Ba/Pd cooperative catalysis system was developed to enable the dehydrative cross-coupling of allylic alcohols with P-ylides to occur directly and promote a subsequent Wittig reaction in one pot. A variety of multisubstituted 1,4-dienes were isolated in good to excellent yields with broad P-ylides (stabilized by both ester and ketone carbonyl groups) and aldehyde (aliphatic and aromatic) substrates with excellent selectivity.

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http://dx.doi.org/10.1021/acs.orglett.9b02623DOI Listing

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