Table 2. Screening of Ligands for AAAr-Desymmetrization of meso-Dibromocycloheptene 8 with PhLi^a.

^aConditions: meso-8 (0.2 mmol) in CH₂Cl₂ (2 mL). PhLi (0.30 mmol, 1.9 M solution in di-n-butyl ether diluted with hexanes to a final concentration of 0.30 M) was added over 2 h.

^bDetermined by GC–MS and ¹H NMR.

^cer determined by chiral GC.

^dIsolated yield of 9f. Inset: Ball-and-stick representation of the X-ray structure of diol 11.