Diboryldiborenes: π-Conjugated B4 Chains Isoelectronic to the Butadiene Dication.
Angew Chem Int Ed Engl
; 57(32): 10091-10095, 2018 Aug 06.
Article
em En
| MEDLINE
| ID: mdl-29897648
ABSTRACT
B(sp2 )-B(sp3 ) diborane species based on bis(catecholato)diboron and N-heterocyclic carbenes (NHCs) underwent catechol/bromide exchange selectively at the sp3 -hybridized boron atom. The reduction of the resulting 1,1-dibromodiborane adducts led to reductive coupling and isolation of doubly NHC-stabilized 1,2-diboryldiborenes. These compounds are the first examples of molecules exhibiting π-electron delocalization over an all-boron chain.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Alemanha