1,4,5,6-tetraphenyl-2,3-benzo-7,7-diethyl-7-germanorbornadiene

二苯甲酮

2-Iod-N-nitroso-N-acetyl-anilin

1-N,2-N-didiazobenzene-1,2-disulfonamide

sodium 2-(tosyloxy)benzoate