Step Cyclization to Give Part Belt Oxygen-Functionalized Pillar[6,10]arenes

IF 4.9 1区化学 Q1 CHEMISTRY, ORGANIC Organic Letters Pub Date : 2024-12-29 DOI:10.1021/acs.orglett.4c04607

Weijian Xue, Yuhang Liu, Huiqian Li, Xiangyu Ling, Bing Zhao, Yanbing Yin

引用次数: 0

Abstract

Part belt oxygen-functionalized pillar[6,10]arenes are synthesized by step cyclization. An oxygen-substituted tetramer and hexamer have been prepared to construct the O3 pillar[6]arene 4 via a hexamer cyclization reaction and the O6 pillar[10]arene 7 through a [4 + 1+4 + 1] cyclization reaction. X-ray crystallographic studies reveal that both macrocycles have a large cavity and indicate that the part belt oxygen-functionalized pillar[6,10]arenes have both similar cyclic structures and certain differences in configuration compared to pillararene. A variable-temperature ¹H NMR experiment also demonstrated the structure differences between O3 pillar[6]arene 4 and traditional pillararene.

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来源期刊

Organic Letters 化学-有机化学

CiteScore

9.30

自引率

11.50%

发文量

1607

审稿时长

1.5 months

期刊介绍： Organic Letters invites original reports of fundamental research in all branches of the theory and practice of organic, physical organic, organometallic,medicinal, and bioorganic chemistry. Organic Letters provides rapid disclosure of the key elements of significant studies that are of interest to a large portion of the organic community. In selecting manuscripts for publication, the Editors place emphasis on the originality, quality and wide interest of the work. Authors should provide enough background information to place the new disclosure in context and to justify the rapid publication format. Back-to-back Letters will be considered. Full details should be reserved for an Article, which should appear in due course.