反应详情

Procedure as described for NP Amidine I using the following amounts: 1.40 g of 4-t-butyl-N1-(2,6-dimethylphenyl)benzamidine (Amidine IV, 5.0 mmol), 2.50 mL of 2.0 M butyllithium (5.0 mmol), 0.93 mL chlorodiphenylphosphine (5.0 mmol). After filtration to remove lithium chloride and removal of solvent, the sticky residue was treated with 20 mL of pentane. After 1 hour stirring at room temperature, the pentane was removed in vacuo yielding 2.16 g (93%) of off-white solid.

1. filtrationAfter filtration
2. customto remove
3. customlithium chloride and removal of solvent
4. additionthe sticky residue was treated with 20 mL of pentane
5. customthe pentane was removed in vacuo