A Directed Metalation Approach to 2-Trialkylammoniomethyl-3-trimethylsilylmethyl)-thiophene Iodides: Precursors to 2,3-Bis(methylene)-2,3-dihydrothiophene
A Directed Metalation Approach to 2-Trialkylammoniomethyl-3-trimethylsilylmethyl)-thiophene Iodides: Precursors to 2,3-Bis(methylene)-2,3-dihydrothiophene
PLANT, ANDREW;CHADWICK, DEREK J., SYNTHESIS,(1990) N0, C. 915-917
作者:PLANT, ANDREW、CHADWICK, DEREK J.
DOI:——
日期:——
A Directed Metalation Approach to 2-Trialkylammoniomethyl-3-trimethylsilylmethyl)-thiophene Iodides: Precursors to 2,3-Bis(methylene)-2,3-dihydrothiophene
作者:Andrew Plant、Derek J. Chadwick
DOI:10.1055/s-1990-27052
日期:——
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.