Topic
Bicyclic molecule
About: Bicyclic molecule is a research topic. Over the lifetime, 29587 publications have been published within this topic receiving 451252 citations. The topic is also known as: bicyclic molecule.
Papers published on a yearly basis
Papers
More filters
TL;DR: A series of 2,5,6-trisubstituted and 2,1-b][1,3,4]thiadiazoles were synthesized and screened for antitubercular activity against Mycobacterium tuberculosis H37Rv, antibacterial activity against Escherichia coli and Bacillus cirrhosis, and antifungal activity against Aspergillus niger and Penicillium wortmanni.
125 citations
TL;DR: In this paper, the macrobicyclic compounds 1−7 form inclusion complexes with alkali and alkaline-earth metal cations, termed cryptates, the metal cation is contained in the intramolecular cavity of the bicyclic system.
125 citations
TL;DR: L'etude est faite sur les systemes protomeres suivants: dimethyl-5,5 cyclohexanedione-1,3 methyl-2 cycloenanedione -1.3, perhydro benzo [c] furannedione- 1,7, acetylacetone, acetacetate d'ethyle and anthrone-9 as mentioned in this paper.
Abstract: L'etude est faite sur les systemes protomeres suivants: dimethyl-5,5 cyclohexanedione-1,3 methyl-2 cyclohexanedione-1,3, perhydro benzo [c] furannedione-1,7, acetylacetone, acetylacetate d'ethyle et anthrone-9
125 citations
TL;DR: This work reports on a novel method to make [1]rotaxane via covalent bond formation from a macrocyclic compound, and finds that only lithium ion among alkali ions can drastically enhance the fluorescence intensity.
Abstract: Although there have been a lot of reports on the synthesis and properties of [n]rotaxanes (mainly n = 2), only a few reports on the synthesis of [1]rotaxane has been published by Vogtle's group and others (see ref 5). Generally speaking, [1]rotaxane might be expected to exhibit properties different from other rotaxanes, because the rotor and the axle in the [1]rotaxane is bound covalently and closely. We report on a novel method to make [1]rotaxanes via covalent bond formation from a macrocyclic compound. That is, we first prepared a bicyclic compound from macrocycle and then proceeded to [1]rotaxane by aminolysis. This is the first synthetic example of preparation of [1]rotaxane via covalent bond formation, not utilizing weak interactions such as hydrogen bonding, charge transfer, via metal complexation, etc. This method might provide a powerful and new tool for construction of [1]rotaxane as a new supramolecular system. In addition, we investigated energy transfer from rotor to axle using [1]rotaxane that we prepared. Energy transfer occurred perfectly from the naphthalene ring of the rotor to the anthracene ring of the axle. We found also that only lithium ion among alkali ions can drastically enhance the fluorescence intensity. This finding could be applicable to ion-sensing systems, switching devices, and so on.
124 citations
TL;DR: In this article, the effects of alkyl substituents on the chemical shifts of ring protons in cyclohexane compounds are summarized and applied to explain a number of general features, including the variation in broadness of the resonance signal observed for ring-protons in cis and trans disubstituted cyclo-hexanes, and in cis-and trans fused bicyclic systems.
124 citations