Amines Related to 2,5-Dimethoxyphenethylamine. IV. 2,5-Diethoxy, 2-Hydroxy-5-methoxy and 2-Hydroxy-5-ethoxyphenylalkanolamines<sup>1</sup>
作者:Walter S. Ide、Richard Baltzly
DOI:10.1021/ja01183a063
日期:1948.3
Stereoselective Single Step Cyclization to Give Belt-Functionalized Pillar[6]arenes
作者:Zeke Coady、Jordan N. Smith、Katie A. Wilson、Nicholas G. White
DOI:10.1021/acs.joc.3c01868
日期:2024.2.2
commercially available alcohol or a very readily prepared precursor. X-ray crystal structures of the macrocycles indicate they have a capsule-like structure, which is far from the conventional pillar shape. Density functional theory calculations reveal that the energy barrier required to obtain the pillar conformation is significantly higher for these belt-functionalized macrocycles than for conventional belt-unfunctionalized