KNIGHT D. W.; NOTT A. P., J. CHEM. SOC. PERKIN TRANS., PART 1, 1981, NO 4, 1125-1131
作者:KNIGHT D. W.、 NOTT A. P.
DOI:——
日期:——
The generation and chemistry of dianions derived from furancarboxylic acids
作者:David W. Knight、Andrew P. Nott
DOI:10.1039/p19810001125
日期:——
2-lithiofuran-3-carboxylate (21) from furan-2-and furan-3-carboxylic acids respectively are described. The reactions of (5) and (21) with a range of electrophiles have been examined; in general these are very efficient with aldehydes and ketones but not as satisfactory with alkyl halides and epoxides. The dianions do not couple with allylic or benzylichalides, nor with nitriles or orthoesters. The generation of