82235-82-3Relevant academic research and scientific papers
Preparation of Cyclobutene Acetals and Tricyclic Oxetanes through Photochemical Tandem and Cascade Reactions
Buendia, Julien,Chang, Zong,Eijsberg, Hendrik,Guillot, Régis,Frongia, Angelo,Secci, Francesco,Xie, Juan,Robin, Sylvie,Boddaert, Thomas,Aitken, David J.
supporting information, p. 6592 - 6596 (2018/04/30)
We describe a photochemical reaction using two starting materials, a cyclopent-2-enone and an alkene, which are transformed in a controlled manner via the initial [2+2]-photocycloaddition adducts into cyclobutene aldehydes (conveniently trapped as stable acetals) or unprecedented angular tricyclic 4:4:4 oxetane-containing skeletons. These compounds are formed through tandem or triple cascade photochemical reaction processes, respectively. Small libraries of each compound class were prepared, thus suggesting that this photochemistry approach opens new opportunities for synthesis design and for widening molecular diversity.
Optimization of Grignard ring-opening of α-brominated dioxolanes for the preparation of β-hydroxy-protected vinyl ethers by a three-step one-pot procedure
André, Mathieu,Letribot, Boris,Bayle, Martine,Mounetou, Emmanuelle,Chezal, Jean-Michel
, p. 6107 - 6110 (2012/11/07)
Aliphatic, cyclic, and aromatic benzoate-protected γ-hydroxy enol ethers were prepared from α-brominated dioxolanes by a three-step reaction procedure and a one-pot protocol involving Grignard reagent formation, ring-opening, and final benzoate protection
Synthesis and application of poly(diallyldimethylammonium tribromide) as a novel polymeric brominating agent
Hossein, Mahdavi,Zahra, Kachoei
experimental part, p. 2221 - 2225 (2011/10/12)
In this study, the synthesis and applications of a new supported tribromide reagent based on poly(diallyldimethylammonium chloride) is reported. This supported tribromide is used in α-bromoacetalization of ketones, bromination of alkenes and regioselective bromination of activated aromatic compounds. This method is mild and no Br2 and HBr were used. Other advantages of this reagent are stability, high efficiency, simple filtera- bility and reusability. In this study, the synthesis and applications of a new supported tribromide reagent based on poly(diallyldimethylammonium chloride) is reported. This supported tribromide is used in α-bromoacetalization of ketones, bromination of alkenes and regioselective bromination of activated aromatic compounds. This method is mild and no Br2 and HBr were used. Other advantages of this reagent are stability, high efficiency, simple filterability and reusability. Copyright
UNE NOUVELLE METHODE DE BROMATION : LE TRIBROMURE DE TETRABUTYLAMMONIUM.
Fournier, M.,Fournier, F.,Berthelot, J.
, p. 157 - 158 (2007/10/02)
Tetrabutylammonium tribromide (TBA Br3) is used under mild conditions as bromating agent for the addition on double bonds of alkenes and for selective α-substitution of acetals in high yields.
