Selective Halogen Migration Reactions at Mixed Halothiophenes

Experimental and results

Migration at 3-bromo-2-iodothiophene

Reaction sequence

Electrophile	E	Yield (%)
MeOH	H	81 (97%)
TMSCl	TMS	76
DMF	CHO	71
Cyclohexanone	1-OH-cyclohexyl	69
CH₃I	CH₃	60
CH₃SSCH₃	CH₃S	72 (97%)
I₂	I	58
PhCHO	PhCHOH	78

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