目的合成邻苯甲酰四氯苯甲酸（C6H5COCl4C6H5CO2H1）及其三有机锡羧酸酯化合物C6H5COCl4C6H5CO2SnR（R=Ph,2a;R=Bz,2b;R=Cy,2c;R=C6H5C（CH......