CONFORMATIONAL ANALYSIS .V. 2-CHLORO- AND 2-BROMOTETRAHYDROPYRAN
CONFORMATIONAL ANALYSIS .V. 2-CHLORO- AND 2-BROMOTETRAHYDROPYRAN
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DOI：
10.1021/jo01340a046
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发表时间：
1966-01-01
影响因子：
3.6
通讯作者：
OUELLETT.RJ
中科院分区：
文献类型：
--
作者：
BOOTH, GE;OUELLETT.RJ
已发现2-氯-和2-溴四氢吡喃的唯一可检测构象是在轴向位置含有卤素的构象。溶剂极性对于降低轴向构象异构体的分数没有可测量的影响。对“异头效应”的大小进行了估计，并与“-晕酮效应”的大小进行了比较。
The sole detectable conformation of both 2-chloro-and 2-bromotetrahydropyran has been found to be that containing the halogen in the axial position. Solvent polarity has no measurable effect on decreasing the frac-tion of the axial conformer. An estimate of the magnitude of the “anomeric effect” is made andcompared with that of the «-halo ketone effect.