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.
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TL;DR: The cyclic α-imino gold carbene intermediate B is most likely generated in situ via regioselective nitrene transfer from an azido group to a tethered terminal alkyne in the presence of a gold catalyst and at ambient temperature.
95 citations
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TL;DR: In this paper, selective reactions of terpenes, catalyzed by different heterogeneous systems, are reported, where α-pinene and limonene epoxides are effectively isomerized to carbonyl compounds over silica aluminas that appear to be good alternatives to homogeneous ZnBr2.
Abstract: Selective reactions of terpenes, catalyzed by different heterogeneous systems, are reported. α-pinene and limonene epoxides can be effectively isomerized to carbonyl compounds (selectivity >70%) over silica aluminas that appear to be good alternatives to homogeneous ZnBr2. The different reactivity of geometric isomers can be used to separate them. Unsaturated ketones can be converted through a two-step one-pot reaction in cyclic or bicyclic ethers through a bifunctional process involving a hydrogenation and an acid-catalyzed step. However, the choice of the solvent allows to inhibit the acidic sites, thus obtaining a selective hydrogenation reaction. On the other hand, the acidic reaction alone can be useful for alcohol epimerization and epimer separation. Grafting of Ti in a siliceous matrix gives rise to a material with both redox and acidic properties. Solids obtained in this way are active and selective in the epoxidation of terpenic alcohols but can also promote bifunctional reactions.
95 citations
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24 Jun 1985TL;DR: In this paper, 4.4-[(Bicyclic heterocyclyl)methyl and -hetero]-piperidines having antihistaminic and serotonin-antagonistic properties are useful agents in the treatment of allergic diseases.
Abstract: 4-[(Bicyclic heterocyclyl)methyl and -hetero]-piperidines having antihistaminic and serotonin-antagonistic properties which compounds are useful agents in the treatment of allergic diseases.
95 citations
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TL;DR: In this paper, the authors present a detailed analysis of the LSA-1983-011 abstract of the chim organ and the LCA-2013-011 paper, which is based on 2005-11-09, modified on 2017-05-12
Abstract: Note: Univ lausanne,inst chim organ,ch-1005 lausanne,switzerland. Reference LGSA-ARTICLE-1983-011doi:10.1002/hlca.19830660627 Record created on 2005-11-09, modified on 2017-05-12
95 citations