Synthesis and structures of α-lithiated vinyl ethers
作者:Thanh C. Ho、Jonathan Congmon、Zhe Zhou、Marcus A. Tius、Lawrence M. Pratt
DOI:10.1016/j.tet.2018.07.019
日期:2018.8
The structures of α-lithiated vinyl ethers were explored on the basis of a combined computational and NMR study. Calculations (M06/6-31 + G(d)) on free energies of aggregate formation for a series of α-lithiated vinyl ethers indicated that the tetramer is generated preferentially in both the gas phase and THF solution, except for cyclohexylidene derivatives. (1-(Methoxymethoxy)vinyl)lithium, (2,2-