Refine
Has Fulltext
- yes (22)
Is part of the Bibliography
- yes (22)
Document Type
- Preprint (16)
- Journal article (6)
Keywords
- boron (10)
- diborenes (7)
- carbenes (6)
- Boron (4)
- diborene (3)
- Aromaticity (2)
- Biradicals (2)
- Cycloaddition (2)
- Diborane (2)
- Multiple bonds (2)
Institute
Sonstige beteiligte Institutionen
EU-Project number / Contract (GA) number
- 669054 (22) (remove)
Under a CO atmosphere the dihydrodiborene [(cAAC)HB=BH(cAAC)] underwent coordination of CO concomitant with reversible hydrogen migration from boron to the carbene carbon atom, as well as reversible CO insertion into the B=B bond. Heating of the CO-adduct resulted in two unusual cAAC ring-expansion products, one presenting a B=C bond to a six-membered 1,2-azaborinane-3-ylidene, the other an unprecedented nine-membered cyclic alkyne resulting from reductive cleavage of CO and spontaneous C≡C triple bond formation.