Journal
ORGANOMETALLICS
Volume 37, Issue 19, Pages 3360-3367Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.organomet.8b00598
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Funding
- Natural Science and Engineering Research Council of Canada [RGPIN1193993-2013]
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A new family of unsymmetrical, N,C-chelate organoboron compounds B(ppz)(Mes)Ar have been synthe-sized and found to undergo a rare, regioselective two-stage photoisomerization, involving the Ar group only. The initial transformation is a Zimmerman rearrangement to afford yellow azaboratabisnorcaradiene isomers that are subsequently converted to unprecedented 14aH-diazaborepins via a photochemical walk rearrangement. Spectroscopic and computational studies provide insight into the formation and properties of these unique systems.
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