Selective Halogen Migration Reactions at Mixed Halothiophenes

Experimental and results

Migration at 3-chloro-2-iodothiophene

Reaction sequence

Electrophile	E	Yield (%)
MeOH	H	76 (97%)
TMSCl	TMS	71
DMF	CHO	74
Cyclohexanone	1-OH-cyclohexyl	63
CH₃I	CH₃	89
CH₃SSCH₃	CH₃S	68
I₂	I	81
PhCHO	PhCHOH	85

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