邻烷氧基苯酚的相转移催化合成及其锂化合物的性质

摘要/Abstract

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.

关键词: 邻烷氧基苯酚, 相转移反应, 锂化合物

Abstract: In this paper seven o-alkoxy phenols and their corresponding isotope lithium compounds of 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 of o-alkoxy phenol parent compounds disappeared in the spectra of their correspounding lithiumcompounds demonstrating the deformation vibration of OH in the alcohols and phenols The lithium compounds gave two kinds of aggregate ion peaks in mass spectra namely [Li_nR_n]⁺ and [Li_nR_n-1]⁺.

Key words: O-Alkoxy phenols, Phase transfer reaction, Lithium compounds

袁群, 沈学强, 徐瑛. 邻烷氧基苯酚的相转移催化合成及其锂化合物的性质[J]. 应用化学, 1989, 0(3): 42-45.

Yuan Qun, Shen Xieqiang, Xu Ying Shanghai. SYNTHESIS OF O-ALKOXY-PHENOLS BY PHASE-TRANSFER-CATALYSIS AND THE PROPERTIES OF THEIR LiTHIUM COMPOUNDS[J]. Chinese Journal of Applied Chemistry, 1989, 0(3): 42-45.

邻烷氧基苯酚的相转移催化合成及其锂化合物的性质

SYNTHESIS OF O-ALKOXY-PHENOLS BY PHASE-TRANSFER-CATALYSIS AND THE PROPERTIES OF THEIR LiTHIUM COMPOUNDS

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