Multiple C–H borylation of phenylhydrazones to boron–nitrogen analogues of benzopentalene

• DOI: 10.1039/c5cc00471c
• Publication Date: 2015-02-19T11:01:11Z
• Authors: Cong Ma; Jianying Zhang; Jianfeng Li; Chunming Cui
• Keywords: Borylation; Cleavage (geology)

One-pot multiple borylation of phenylhydrazones to a series novel boron-nitrogen analogues benzopentalene by the cleavage C-H bonds with PhBBr2 mediated NEt3 has been established. The resulting BN benzopentalenes feature unique electronic structures and are luminescent both in solution solid state.