反应详情

A solution of 1.30 g of dodecene in 6 ml of dry toluene is heated to 80° under an atmosphere of argon. To this solution a suspension of 2.0 g of 3-benzyloxycarbonylaminopropylphosphonous acid in 30 ml of dry toluene containing 0.6 g of t-butylcyclohexylperdicarbonate is added within 15 minutes. The reaction mixture is then stirred at 80° for 2 hours. An additional amount of 0.6 g of the radical initiator is added and stirring at 80° is continued for 2 hours. Then, the reaction mixture is cooled to room temperature and the solvent is removed by means of a rotary evaporator. The residue is triturated with petroleum ether (60°-80°), filtered and dried to give 3-benzyloxycarbonylaminopropyl(dodecyl)phosphinic acid as a white solid, m.p. 115°-116°; 31P-NMR: δ=±58.7 ppm (CDCl3).

1. additionof t-butylcyclohexylperdicarbonate is added within 15 minutes
2. stirringstirring at 80°
3. waitis continued for 2 hours
4. customthe solvent is removed by means of a rotary evaporator
5. customThe residue is triturated with petroleum ether (60°-80°)
6. filtrationfiltered
7. customdried