2020
DOI: 10.1021/acs.orglett.0c01121
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Acylation of Aryl Halides and α-Bromo Acetates with Aldehydes Enabled by Nickel/TBADT Cocatalysis

Abstract: In this protocol aryl halides and α-bromo acetates are efficiently cross-coupled with an array of (hetero)­aromatic and aliphatic aldehydes under the cooperative catalysis of nickel and tetrabutylammonium decatungstate as a hydrogen-atom-transfer photocatalyst. This method provides a concise approach to a variety of ketones with high compatibility of various functional groups.

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Cited by 45 publications
(18 citation statements)
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“…Based on the synergy of decatungstate HATcatalysis and nickel catalysis,W ang and co-workers demonstrated the acylation of aryl halides and a-bromo acetates with aromatic and aliphatic aldehydes,w hereby the resulting aromatic ketones and 1,3-dicarbonyls could be obtained in moderate to good yield. [111] In as imilar fashion, the group of Zheng disclosed very recently the direct C À Harylation of aldehydes by merging decatungstate HATphotocatalysis and palladium cross-coupling catalysis. [112] Application of this method allowed the efficient linkage of various (hetero)aryl bromides, iodides,a nd triflates with aromatic and aliphatic aldehydes.…”
Section: Polyoxometalates As Photocatalystsmentioning
confidence: 99%
“…Based on the synergy of decatungstate HATcatalysis and nickel catalysis,W ang and co-workers demonstrated the acylation of aryl halides and a-bromo acetates with aromatic and aliphatic aldehydes,w hereby the resulting aromatic ketones and 1,3-dicarbonyls could be obtained in moderate to good yield. [111] In as imilar fashion, the group of Zheng disclosed very recently the direct C À Harylation of aldehydes by merging decatungstate HATphotocatalysis and palladium cross-coupling catalysis. [112] Application of this method allowed the efficient linkage of various (hetero)aryl bromides, iodides,a nd triflates with aromatic and aliphatic aldehydes.…”
Section: Polyoxometalates As Photocatalystsmentioning
confidence: 99%
“…Darüber hinaus demonstrierten Wang und Mitarbeiter die Acylierung von Arylhalogeniden und α‐bromierten Carbonsäureestern mit aromatischen und aliphatischen Aldehyden. Basierend auf dem Zusammenspiel von Decawolframat‐HAT‐Photokatalyse und Nickel‐Katalyse konnten die entsprechenden aromatischen Ketone und 1,3‐Dicarbonyle in moderater bis guter Ausbeute erhalten werden [111] . Auf ähnliche Weise gelang der Gruppe von Zheng vor kurzem die direkte C‐H‐Arylierung von Aldehyden durch das Zusammenspiel von Wolframat‐HAT‐Photokatalyse und Palladium‐katalysierter Kreuzkupplung [112] .…”
Section: Anionen Als Photokatalysatorenunclassified
“…Basierend auf dem Zusammenspiel von Decawolframat-HAT-Photokatalyse und Nickel-Katalyse konnten die entsprechenden aromatischen Ketone und 1,3-Dicarbonyle in moderater bis guter Ausbeute erhalten werden. [111] Auf ähnliche Weise gelang der Gruppe von Zheng vor kurzem die direkte C-H-Arylierung von Aldehyden durch das Zusammenspiel von Wolframat-HAT-Photokatalyse und Palladiumkatalysierter Kreuzkupplung. [112] Die Anwendung der entwickelten Methode erlaubte die effiziente Verknüpfung verschiedener (Hetero-)Arylbromide,-iodide und -triflate mit aromatischen und aliphatischen Aldehyden.…”
Section: Polyoxometallate Als Photokatalysatorenunclassified
“…The impressive relevant successes are either initiated by a single radical intermediate or mostly involve transition metal-catalyzed processes (with metal-carbon bond formed in the key intermediates). Examples include reactions of carboxylic acids and their derivatives with alkenes via radical processes 13 18 or nickel-catalyzed coupling reactions 19 22 to prepare ketones. N -heterocyclic carbenes (NHCs) as organic catalysts 23 29 are proved effective in generating radical intermediates 30 34 for various reactions, as earlier disclosed by Scheidt 35 , 36 , Studer 37 , 38 , Rovis 39 , 40 , our laboratories 41 , 42 , Sun 43 , and Ye 44 48 .…”
Section: Introductionmentioning
confidence: 99%