Table 2.

Substrate scope for the double methylation at the primary C‐atom of secondary alcohols.^[a]

[a] Reaction conditions: 0.1 mol % [Mn‐IIIa] (1 μmol), 1.5 equiv KO^tBu (168 mg), A (1 mmol), MeOH (3 mmol, 122 μL), diglyme (2 mL), 140 °C (oil bath), 3 h. Isolated yields. [b] Yields determined by GC with n‐decane as internal standard. [c] 0.3 mol % [Mn‐IIIa], 1.5 equiv NaO^tBu (144 mg). [d] 2 mol % [Mn‐IIIa], 12 h.