diethyl (5,11,17,23-tetratert-butyl-26-diethoxyphosphoryloxy-27,28-dihydroxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9(27),10,12,15(26),16,18,21,23-dodecaenyl) phosphate 在
氨 、
氢化钾 作用下,
以
乙醚 为溶剂,
以0.29 g的产率得到5,11,17,23-tetra-tert-butyl-25,26-dihydroxycalix[4]arenetitanium(IV) dichloride