期刊
TETRAHEDRON
卷 70, 期 4, 页码 800-804出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2013.12.047
关键词
Dimethyl-substituted glycoluril dimer; Symmetrical octamethyl-substituted cucurbituril; Controlled synthesis
资金
- National Natural Science Foundation of China [21272045]
- Natural Science Foundation of the Department of Education of Guizhou Province
- 'Chun-Hui' Funds of the Chinese Ministry of Education
A symmetrical octamethyl-substituted cucurbituril has been synthesized in a controlled manner by using a dimer of dimethyl-substituted glycoluril, which was in turn synthesized under formaldehyde-deficient conditions. The dimer of dimethyl-substituted glycoluril and the symmetrical octamethyl-substituted cucurbituril have been characterized by NMR spectrometry, ESI mass spectrometry and single-crystal X-ray diffraction analysis. The structure of the dimer of dimethyl-substituted glycoluril is notable because it constitutes a useful new building block that could permit the formation of such cucurbit[n]urils with substituents in certain positions or with limited numbers of methine groups on their backbones. (C) 2013 Elsevier Ltd. All rights reserved.
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