silver tetrafluoroborate; C36H26I2N4Pt; oxygen in benzene T=80°C; 72 h;

1: With selenenyl bromide resin; tin(IV) chloride in dichloromethane T=-20°C; 0.5 h; 2: With 2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in toluene T=90°C; 2 h;