Table 4.

Byproducts Produced from Attempted Radiobromination of Tributyltin Precursor 4 Using [⁷⁶Br]bromide Produced in Ammonium Hydroxide and Water

76Br/Bromide	Oxidizing agent	Unknownsa
		#1	#2
Produced in 0.6N NH4OH or dried	PAA	major	none
	CAT	major	major
	2:1 H2O2/AcOH	major	none
Produced in H2O dried	PAA	minor	major
	CAT	minor	major
	2:1 H2O2/AcOH	none	none

^adetermined by radioTLCs (silica gel).