Lithium Dihydropyridine Dehydrogenation Catalysis: A Group 1 Approach to the Cyclization of Diamine Boranes

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Abstract: In reactions restricted previously to a ruthenium catalyst, a 1‐lithium‐2‐alkyl‐1,2‐dihydropyridine complex is shown to be a competitive alternative dehydrogenation catalyst for the transformation of diamine boranes into cyclic 1,3,2‐diazaborolidines, which can in turn be smoothly arylated in good yields. This study established the conditions and solvent dependence of the catalysis through NMR monitoring, with mechanistic insight provided by NMR (including DOSY) experiments and X‐ray crystallographic studies of several model lithio intermediates.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Lithium Dihydropyridine Dehydrogenation Catalysis: A Group 1 Approach to the Cyclization of Diamine Boranes ; volume:56 ; number:4 ; year:2017 ; pages:1036-1041 ; extent:6
Angewandte Chemie / International edition. International edition ; 56, Heft 4 (2017), 1036-1041 (gesamt 6)

Urheber
McLellan, Ross
Kennedy, Alan R.
Orr, Samantha A.
Robertson, Stuart D.
Mulvey, Robert E.

DOI
10.1002/anie.201610905
URN
urn:nbn:de:101:1-2022091506430133922894
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:37 MESZ

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Beteiligte

  • McLellan, Ross
  • Kennedy, Alan R.
  • Orr, Samantha A.
  • Robertson, Stuart D.
  • Mulvey, Robert E.

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