2-bromo-3-hexyl-4-iodothiophen

Monomer 6. A round-bottomed flask equipped with a three-way stopcock is heated under reduced pressure and then cooled to room temperature under an argon atmosphere. 2-Bromo-3-hexyl-5-iodothiophene (373 mg, 1.00 mmol) is placed in the flask, and the atmosphere is replaced with argon. THF (5.0 mL) is added into the dry flask via a syringe and the mixture is stirred at 0 °C. Iso-propylmagnesium chloride, /-PrMgCl, (2.0 M solution in THF, 0.50 mL, 1.0 mmol) is added via a syringe to the mixture and stirred at 0 °C for 1 h. 

Doubina N, Stoddard M, Bronstein HA, Jen AKY, Luscombe CK (2009) The effects of binding ligand variation on the nickel catalyzed externally initiated polymerization of 2-bromo-3-hexyl-5-iodothiophene. Macromol Chem Phys 210 1966-1972... 

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