B–H and O–H bonds activation via a single electron transfer of frustrated radical pairs. Issue 25 (10th June 2021)

• Record Type: Journal Article
• Authors: Pan, Yanlin; Cui, Jie; Wei, Yongliang; Xu, Zhaochao; Wang, Tongdao
• Is Part Of: Dalton transactions. Volume 50:Issue 25(2021)
• Page Start: 8947
• Page End: 8954
• Publication Date: 2021-06-10
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt01169c
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : The combination of TEMPO radicals with Lewis acidic boranes enables the cleavage of B–H and O–H bonds via a one-electron process. Abstract : The rare examples of B–H bond activation in a frustrated radical pair regime have been observed by treatment of TEMPO radicals with Piers' borane HB(C6 F5 )2 or bis-borane, respectively. The resulting concomitant formation of zwitterionic products and geminal N/B frustrated Lewis pairs implied a one electron process. In addition, the reaction of a TEMPO/B(C6 F5 )3 pair with H2 O·B(C6 F5 )3 was assumed to involve one-electron reduction of water. Our results provide insights into chemical bond ( e.g. B–H and O–H) activation via a single electron transfer.