pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h, 3.) acetone, room temperature, 5.5 h; Yield given. Multistep reaction;

pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h, 3.) acetone, 65 deg C, 32 h; Yield given. Multistep reaction. Yields of byproduct given;

pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h, 3.) acetone, 65 deg C, 32 h; Yield given. Multistep reaction. Yields of byproduct given;

pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h; -78 deg C -> 0 deg C, 3.) acetone, room temperature, 16 h; Yield given. Multistep reaction;

pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h, 3.) acetone; Yield given. Multistep reaction. Yields of byproduct given;

pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h; -78 deg C -> 0 deg C, 3.) acetone, room temperature, 16 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

pyridine; n-butyllithium; methyl iodide 1.) THF, hexane, -78 deg C, 30 min, 2.) -78 deg C, 2 h; -78 deg C -> 0 deg C, 3.) acetone, room temperature, 16 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;