摘要
前文曾报导邻位取代苯酚锂化合物的质谱和红外光谱性质,通过同位素~6Li和~7Li化合物的红外光谱差异,提出了在这类化合物中存在内锂键的可能性.对邻位甲氧基苯酚锂的低温红外光谱研究表明,这类锂化合物中可能存在有网状结构性质.为进一步深入了解这一性质,我们通过相转移催化反应合成了7个邻烷氧基苯酚,制得它们的~6Li和~7Li化合物,考察了它们的红外光谱和质谱性质.
In this paper seven o-alkoxy phenols and their corresponding isotope lithium compoundsof ~7Li and ~6Li have been Frepared through the selective monoalkylating reaction of pyroca-techol and alkylhalides by phase transter catalyst. Li-O absorption frequencies in theIR spectra were found in the range of 500±100cm^(-1), which obeyed the tetrahedron rule ofinorganic lithium compounds. The isotope effect by ~6Li and ~7Li was also observed.The strong double peak in the range of 1400-1350cm^(-1) presented in the IR spectra ofo-alkoxy phenol parent compounds disappeared in the spectra of their correspounding lithiumcompounds demonstrating the deformation vibration of OH in the alcohols and phenolsThe lithium compounds gave two kinds of aggregate ion peaks in mass spectra namely[Li_nRn]^+ and [Li_nR_(n-1)]^+.
出处
《应用化学》
CAS
CSCD
北大核心
1989年第3期42-45,共4页
Chinese Journal of Applied Chemistry
关键词
邻烷氧基苯酚
相转移反应
锂化合物
O--Alkoxy phenols
Phase transfer reaction
Lithium compounds
