Iron-Catalyzed Photoinduced LMCT: a 1° C-H Abstraction Enables Skeletal Rearrangements and C(sp(3))-H Alkylation.
Iron-Catalyzed Photoinduced LMCT: a 1° C-H Abstraction Enables Skeletal Rearrangements and C(sp(3))-H Alkylation.
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DOI:
10.1021/acscatal.1c02285
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发表时间:
2021-06-18
期刊:
影响因子:
12.9
通讯作者:
Rovis, Tomislav
中科院分区:
文献类型:
--
作者:
Kang, Yi Cheng;Treacy, Sean M.;Rovis, Tomislav
关键词:
Herein we disclose an iron-catalyzed method to access skeletal rearrangement reactions akin to the Dowd-Beckwith ring expansion from unactivated C(sp3)-H bonds. Photoinduced ligand-to-metal charge transfer at the iron center generates a chlorine radical, which abstracts electron-rich C(sp3)–H bonds. The resulting unstable alkyl radicals can undergo rearrangement in the presence of suitable functionality. Addition to an electron deficient olefin, recombination with a photoreduced iron complex, and subsequent protodemetallation allows for redox-neutral alkylation of the resulting radical. Simple adjustments to the reaction conditions enable the selective synthesis of the directly alkylated or the rearranged-alkylated products. As a radical clock, these rearrangements also enable the measurement of rate constants of addition into various electron deficient olefins in the Giese reaction.
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影响因子:
3.6
作者:
Ardura, D;Sordo, TL
通讯作者:
Sordo, TL
影响因子:
15
作者:
Beckwith, ALJ;Poole, JS
通讯作者:
Poole, JS
DOI:
10.1139/v80-056
发表时间:
1980-01-01
期刊:
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
影响因子:
--
作者:
INGOLD, KU;WARKENTIN, J
通讯作者:
WARKENTIN, J
DOI:
10.1002/anie.201703743
发表时间:
2018-01-02
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Chu JCK;Rovis T
通讯作者:
Rovis T
影响因子:
62.1
作者:
Karkas, Markus D.;Porco, John A., Jr.;Stephenson, Corey R. J.
通讯作者:
Stephenson, Corey R. J.