1. Our Voyage from Catalytic Cross-Hydroalkenylation to Transfer-Dehydroaromatization of Cyclic π-Systems: Reactivity and Selectivity Changes Enabled by NHC-Ni and NHC-Pd Hydride Equivalents.
- Author
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Chen, Yang, Chen, Weihao, Gu, Xiao, and Ho, Chun-Yu
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ALKENYL group , *VINYL halides , *ANILINE derivatives , *HYDRIDES , *METALLOCENE catalysts , *ALLYLIC alkylation - Abstract
Our Voyage from Catalytic Cross-Hydroalkenylation to Transfer-Dehydroaromatization of Cyclic -Systems: Reactivity and Selectivity Changes Enabled by NHC-Ni and NHC-Pd Hydride Equivalents Subsequently, we found that the (NHC)Pd-H catalyst could be generated analogously according to a reported procedure using silane and CataXium A ligated palladium chloride, [98] which was used as an olefin isomerization catalyst (Scheme 13). Only a few examples with limited isomerization problems are reported under harsh conditions (under 50 equiv. cyclic olefin) by P-based systems..[71] Presumably, the problem is related to the high olefin isomerization ability of the P-M-H (e.g., M = Ni or Pd). Keywords: hydroalkenylation; transfer-hydrogenation; dehydroaromatization; N-heterocyclic carbenes; nickel; palladium EN hydroalkenylation transfer-hydrogenation dehydroaromatization N-heterocyclic carbenes nickel palladium 1639 1654 16 08/18/23 20230901 NES 230901 Graph 1 Introduction Transition-metal hydrides (M-H) are important catalysts or intermediates in organic transformations such as catalytic olefin polymerization/oligomerization, [1] allylic CH activation, [2] isomerization, [5] and cross-hydroalkenylation (HA) of olefins (Scheme 1). [Extracted from the article]
- Published
- 2023
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