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Title: Nitrogen Atom Transfer Catalysis by Metallonitrene C−H Insertion: Photocatalytic Amidation of Aldehydes

Journal Article · · Angewandte Chemie
 [1];  [2];  [2];  [1];  [1];  [3];  [3];  [3];  [3];  [2]; ORCiD logo [1]
  1. Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Germany
  2. Institut für Anorganische und Analytische Chemie Goethe-Universität Max-von-Laue-Straße 7 60438 Frankfurt am Main Germany
  3. Department of Chemistry Texas A&,M University 3255 TAMU College Station TX 77843 USA

Abstract C−H amination and amidation by catalytic nitrene transfer are well‐established and typically proceed via electrophilic attack of nitrenoid intermediates. In contrast, the insertion of (formal) terminal nitride ligands into C−H bonds is much less developed and catalytic nitrogen atom transfer remains unknown. We here report the synthesis of a formal terminal nitride complex of palladium. Photocrystallographic, magnetic, and computational characterization support the assignment as an authentic metallonitrene (Pd−N) with a diradical nitrogen ligand that is singly bonded to Pd II . Despite the subvalent nitrene character, selective C−H insertion with aldehydes follows nucleophilic selectivity. Transamidation of the benzamide product is enabled by reaction with N 3 SiMe 3 . Based on these results, a photocatalytic protocol for aldehyde C−H trimethylsilylamidation was developed that exhibits inverted, nucleophilic selectivity as compared to typical nitrene transfer catalysis. This first example of catalytic C−H nitrogen atom transfer offers facile access to primary amides after deprotection.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0018977; AC02-06CH11357
OSTI ID:
1840633
Journal Information:
Angewandte Chemie, Journal Name: Angewandte Chemie Journal Issue: 9 Vol. 134; ISSN 0044-8249
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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  • Marenich, Aleksandr V.; Cramer, Christopher J.; Truhlar, Donald G.
  • The Journal of Physical Chemistry B, Vol. 113, Issue 18, p. 6378-6396 https://doi.org/10.1021/jp810292n
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