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

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.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: 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)

Contributors, Places and Time

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

Further information

• DOI: 10.1002/anie.201610905
• URN: urn:nbn:de:101:1-2022091506430133922894
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:37 AM CEST