A procedure for synthesizing potentially anancomeric equatorial phenyl phosphites (cis-l and eq-cis-2) is reported. Spectral characteristics and low-temperature NMR studies on the phenyl phosphites suggest that eq-cis-a is a system with a predominant chair conformation in solution. On the contrary, cis-l is conformationally heterogeneous.
Structural implications of nuclear magnetic resonance studies on 1-R-1-phospha-2,6-dioxacyclohexanes
作者:John G. Verkade、Dennis William White、Richard D. Bertrand、Gerald K. McEwen