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Updated: Jul 6, 2026

[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
09:12

[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst

Published on: May 21, 2019

Pd(PtBu3) 2を介してPd(PtBu3) 2にPhBrのオートカタリシス酸化添加をPd(PtBu3) 2を介してPd(PtBu3) 2を介してPd(PtBu3) 2を介してPd(PtBu3) 2を介してPd(PtBu3)

Fabiola Barrios-Landeros1, Brad P Carrow, John F Hartwig

  • 1Department of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.

Journal of the American Chemical Society
|April 12, 2008
PubMed
まとめ

ブロムベンゼンとパラジウムをPtBu) 3リガンドで酸化的に添加する過程は,自己触媒的経路をたどる. パラジウム (II) 水酸化物種 (PtBu3) 2Pd (H) (Br) は触媒として作用し,パラジウム (II) 前駆体よりもブロモアレンと反応する速度が速い.

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The electrophilic addition of hydrogen halides such as HBr to alkenes and nonconjugated dienes gives a single product as per Markovnikov’s rule.
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Radical Anti-Markovnikov Addition to Alkenes: Mechanism

The reaction of hydrogen bromide with alkenes in the presence of hydroperoxides or peroxides proceeds via anti-Markovnikov addition. The radical chain reaction comprises initiation, propagation, and termination steps.
The mechanism starts with chain initiation, which involves two steps. In the first chain initiation step, a weak peroxide bond is homolytically cleaved upon mild heating to form two alkoxy radicals. In the second initiation step, a hydrogen atom is abstracted by the alkoxy radical...
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The addition of a hydrogen halide to 1,3-butadiene gives a mixture of 1,2- and 1,4-adducts. Since more substituted alkenes are more stable, the 1,4-adduct is expected to be the major product. However, the product distribution is strongly influenced by temperature; low temperature favors the 1,2-adduct, whereas the 1,4-adduct is predominant at high temperature.
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Radical Anti-Markovnikov Addition to Alkenes: Overview

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