Royal Society of Chemistry, Chemical Science, 39(10), p. 9017-9027, 2019
DOI: 10.1039/c9sc03115d
Full text: Download
Depending on the solvent, a brominated arylborane gave the multiple helicene B2-TBPA (pyridine) or the oxadiborepin ODBE (THF) after intramolecular Yamamoto coupling.