THIENOSPIRANS V: THIENOSPIRANS VIA DIRECTED LITHIATHIONS
Using halogen-metal exchange and orthodirected metalation methodologies spirofurans> 2 and 3 were synthesized starting from 3-bromothiophene, in one case proceeding via cyclization of the 2,3-difunctionalized thiophenes 6 and in the other case p
Sauter, Fritz,Stanetty, Peter,Froehlich, Hannes,Ramer, Wolfgang
p. 2639 - 2656
(2007/10/02)
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