An organoantimony complex with intramolecular N → Sb coordination as effective and recyclable catalyst for the allylation of aldehydes with tetraallyltin
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DOI: 10.1016/j.tetlet.2017.05.069
Abstract: Abstract An air-stable hypervalent organoantimony (III) triflate complex (PhN(CH 2 C 6 H 4 ) 2 SbOSO 2 CF 3 ) having intramolecular N → Sb coordination was synthesized and characterized by techniques such as 1 H… read more here.
Keywords: aldehydes tetraallyltin; intramolecular coordination; allylation aldehydes; organoantimony complex ... See more keywords
Visible-Light-Promoted Intramolecular α-Allylation of Aldehydes in the Absence of Sacrificial Hydrogen Acceptors.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c02742
Abstract: We report herein an unprecedented protocol for radical cyclization of aldehydes with pendant alkenes via synergistic photoredox, cobaloxime, and amine catalysis. The transformation was achieved in the absence of external oxidants, providing a variety of… read more here.
Keywords: promoted intramolecular; aldehydes absence; intramolecular allylation; visible light ... See more keywords
Activation of Chromium Catalysts by Photoexcited Hantzsch Ester for Decarboxylative Allylation of Aldehydes with Butadiene.
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DOI: 10.1021/acs.orglett.1c03098
Abstract: Metallaphotocatalysis often needs light-absorbing metal-polypyridyl complexes, semiconductors, or organic dyes, which can modify the oxidation state of metal catalysts. Here, we first report that photoexcitation of Hantzsch ester can directly activate chromium reagents through a… read more here.
Keywords: hantzsch ester; allylation aldehydes; decarboxylative allylation; activation chromium ... See more keywords
Catalytic Allylation of Aldehydes Using Unactivated Alkenes.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.0c04735
Abstract: Simple feedstock organic molecules, especially alkenes, are attractive starting materials in organic synthesis because of their wide availability. Direct utilization of such bulk, inert organic molecules for practical and selective chemical reactions, however, remains limited.… read more here.
Keywords: using unactivated; aldehydes using; allylation aldehydes; catalytic allylation ... See more keywords