Search: onr:"swepub:oai:DiVA.org:umu-156880" >
Catalytic hydrogen ...
Catalytic hydrogen atom transfer from hydrosilanes to vinylarenes for hydrosilylation and polymerization
-
Asgari, Parham (author)
-
Hua, Yuanda (author)
-
Bokka, Apparao (author)
-
show more...
-
Thiamsiri, Chanachon (author)
-
Prasitwatcharakorn, Watcharapon (author)
-
Karedath, Ashif (author)
-
Chen, Xin (author)
-
Sardar, Sinjinee (author)
-
Yum, Kyungsuk (author)
-
Leem, Gyu (author)
-
Pierce, Brad S. (author)
-
- Nam, Kwangho (author)
- Umeå universitet,Kemiska institutionen
-
Gao, Jiali (author)
-
Jeon, Junha (author)
-
show less...
-
(creator_code:org_t)
- 2019-01-28
- 2019
- English.
-
In: Nature Catalysis. - : Nature Publishing Group. - 2520-1158. ; 2:2, s. 164-173
- Related links:
-
https://europepmc.or...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Because of the importance of hydrogen atom transfer (HAT) in biology and chemistry, there is increased interest in new strategies to perform HAT in a sustainable manner. Here, we describe a sustainable, net redox-neutral HAT process involving hydrosilanes and alkali metal Lewis base catalysts-eliminating the use of transition metal catalysts-and report an associated mechanism concerning Lewis base-catalysed, complexation-induced HAT. The catalytic Lewis base-catalysed, complexation-induced HAT is capable of accessing both branch-specific hydrosilylation and polymerization of vinylarenes in a highly selective fashion, depending on the Lewis base catalyst used. In this process, the Earth-abundant, alkali metal Lewis base catalyst plays a dual role. It first serves as a HAT initiator and subsequently functions as a silyl radical stabilizing group, which is critical to highly selective cross-radical coupling. An electron paramagnetic resonance study identified a potassiated paramagnetic species, and multistate density functional theory revealed a high HAT character, yet multiconfigurational nature in the transition state of the reaction.
Subject headings
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Asgari, Parham
-
Hua, Yuanda
-
Bokka, Apparao
-
Thiamsiri, Chana ...
-
Prasitwatcharako ...
-
Karedath, Ashif
-
show more...
-
Chen, Xin
-
Sardar, Sinjinee
-
Yum, Kyungsuk
-
Leem, Gyu
-
Pierce, Brad S.
-
Nam, Kwangho
-
Gao, Jiali
-
Jeon, Junha
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Organic Chemistr ...
- Articles in the publication
-
Nature Catalysis
- By the university
-
Umeå University