Tetrahedron Letters p. 4043 - 4046 (1983)
Update date:2022-08-10
Topics:
Kagan, Jacques
Arora, Sudershan K.
Oligomers containing from 2 to 6 thiophene units attached by their 2 and 5 positions were synthesized unambiguously by iodine oxidation of a suitable ate complex obtained by stepwise reactions of 9-BBN with methanol, a 2-lithiothiophene, boron trifluoride etherate, and a second 2-lithiothiophene.This is a one-pot procedure, carried out under nitrogen between -80 deg C and 0 deg C.
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