Nickel-Catalyzed Allylic Substitution of Simple Alkenes

This report describes a nickel-catalyzed allylic substitution process of simple alkenes whereby an important structural motif, a 1,4-diene, was prepared. The key to success is the use of an appropriate nickel–phosphine complex and a stoichiometric amount of silyl triflate. Reactions of 1-alkyl-substituted alkenes consistently provided 1,1-disubstituted alkenes with high selectivity. Insight into the reaction mechanism as well as miscellaneous application of the developed catalytic process is also documented.National Institute of General Medical Sciences (U.S.) (GM-63755)Japan Society for the Promotion of Science. Postdoctoral Fellowship for Research Abroa

Copper-catalyzed borylative allyl-allyl coupling reaction.

Borylative allyl-allyl coupling using allenes, bis(pinacolato)diboron, and allyl phosphates has been developed in the presence of a copper catalyst bearing an N-heterocyclic carbene ligand. The reaction affords boryl-substituted 1, 5-diene derivatives in good to high yields with high regioselectivity and Z selectivity

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This piece was assembled and encased by a class of UND Museum Studies students led by Pete Stevens in 2017.https://commons.und.edu/uac-all/4375/thumbnail.jp

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https://commons.und.edu/lam-sl/1030/thumbnail.jp

Memory?

Blue abstract painting with gold circles and green spiralshttps://commons.und.edu/uac-all/4325/thumbnail.jp

Who?

A black crow perched on the red ground.https://commons.und.edu/uac-all/3091/thumbnail.jp