A Directed Metalation Approach to 2-Trialkylammoniomethyl-3-trimethylsilylmethyl)-thiophene Iodides: Precursors to 2,3-Bis(methylene)-2,3-dihydrothiophene
- 1 January 1990
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1990 (10) , 915-917
- https://doi.org/10.1055/s-1990-27052
Abstract
Syntheses of precursors to 2,3-bis(methylene)-2,3-dihydrothiophene (2) are described. As key step, a lithiation reaction using secondary carboxamido functionality as directing group is used.Keywords
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