Refine
Has Fulltext
- yes (2)
Is part of the Bibliography
- yes (2) (remove)
Document Type
- Journal article (1)
- Preprint (1)
Language
- English (2) (remove)
Keywords
- diborenes (2)
- N-heterocyclic carbenes (1)
- boron chains (1)
- cations (1)
- diboranes (1)
- hydroboration (1)
- photoisomerization (1)
- pi-conjugation (1)
- triboranes (1)
Institute
EU-Project number / Contract (GA) number
- 669054 (2) (remove)
sp\(^2\)–sp\(^3\) diborane species based on bis(catecholato)diboron and N-heterocyclic carbenes (NHCs) are subjected to catechol/bromide exchange selectively at the sp\(^3\) 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 pelectron delocalization over an all-boron chain.
The reaction of aryl‐ and amino(dihydro)boranes with dibora[2]ferrocenophane 1 leads to the formation 1,3‐trans ‐dihydrotriboranes by formal hydrogenation and insertion of a borylene unit into the B=B bond. The aryltriborane derivatives undergo reversible photoisomerization to the cis ‐1,2‐μ‐H‐3‐hydrotriboranes, while hydride abstraction affords cationic triboranes, which represent the first doubly base‐stabilized B3H4\(^+\) analogues.