Generation of Masked TiII Intermediates from TiIV Amides via ß-H Abstraction or Alkyne Deprotonation: An Example of Ti-Catalyzed Nitrene-Coupled Transfer Hydrogenation.
Organometallics
; 39(21): 3771-3774, 2020 Nov 09.
Article
em En
| MEDLINE
| ID: mdl-34321708
ABSTRACT
Simple Ti amide complexes are shown to act as sources for masked TiII intermediates via several pathways, as demonstrated through the investigation of a unique Ti-catalyzed nitrene-coupled transfer hydrogenation of 3-hexyne. This reaction proceeds through reduction of azobenzene by a masked TiII catalyst, wherein both amines and 3-hexyne can serve as the hydrogen source/reductant for Ti by forming putative titanaziridines via ß-H abstraction or putative titanacyclopentynes via protonolysis, respectively.
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MEDLINE
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En
Ano de publicação:
2020
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Article