Synthesis and Conformational Studies of Tertiary Alcohols Derived from Tetrahydro-4<i>H</i>-pyran-4-one and Tetrahydrothiopyran-4-one
作者:Kevin Tran、K. Darrell Berlin、Elizabeth M. Holt、Randal Hallford、Margaret A. Eastman、Valentina K. Yu、K. D. Praliev
DOI:10.1080/104265090507641
日期:2005.1.1
Abstract A series of derivatives of tetrahydro-4 H-pyran-4-one and tetrahydrothiopyran-4-one have been prepared by condensation with aryl Grignard reagents. IR spectra, 1 H and 13 C NMR spectral analyses, and elemental analyses support the structures. A single-crystal X-ray diffraction analysis of 4-(3,5-dimethylphenyl)tetrahydrothiopyran-4-ol [a = 9.729(10), b = 12.846(2), c = 9.970(10) Åi; space
摘要 通过与芳基格氏试剂缩合制备了四氢-4 H-吡喃-4-酮和四氢噻喃-4-酮的一系列衍生物。IR 光谱、 1 H 和 13 C NMR 光谱分析和元素分析支持结构。4-(3,5-二甲基苯基)四氢噻喃-4-醇的单晶 X 射线衍射分析 [a = 9.729(10), b = 12.846(2), c = 9.970(10) Åi; 空间群 Pna2(1)] 证实芳基位于伪赤道位置,杂环在分子硫端附近略微变平。