352517-77-2Relevant academic research and scientific papers
Novel α-tosyloxylation of ketones catalyzed by the in situ generated hypoiodous acid from alkyl iodide
Zhang, Bijun,Han, Liuquan,Hu, Jiantao,Yan, Jie
, p. 5851 - 5854 (2014)
Using a catalytic amount of 1-iodopropane, a novel and efficient procedure has been developed for direct preparation of α-tosyloxyketones from ketones. In this protocol, 1-iodopropane is first oxidized into iodosylpropane, which decomposes to form the key
Synthesis method of alpha-carbonyl sulfonate and catalyst used in synthesis method
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Paragraph 0076-0085; 0087, (2021/04/17)
The invention provides a nitrogen and carbon co-doped Nb2O5 catalyst for synthesizing alpha carbonyl sulfonate, a preparation method of the nitrogen and carbon co-doped Nb2O5 catalyst, and a synthesizing method of the alpha carbonyl sulfonate by using the catalyst under the driving of visible light. Based on the total weight of the catalyst, the content of nitrogen is 0.01 wt%-1wt%; the content of the carbon is 0.01 wt% to 1.5 wt%. The catalyst provided by the invention is used for preparing alpha-carbonyl sulfonate through olefin aerobic oxidation, the reaction condition is mild, oxygen is used as an oxidant, and other oxidants are not needed. All the raw materials of the catalyst are rich in resource and low in price, and the catalyst can be recycled without inactivation and is very stable to air, water and heat.
Diastereoselective Alkene Hydroesterification Enabling the Synthesis of Chiral Fused Bicyclic Lactones
Shi, Zhanglin,Shen, Chaoren,Dong, Kaiwu
supporting information, p. 18039 - 18042 (2021/11/16)
Palladium-catalysed diastereoselective hydroesterification of alkenes assisted by the coordinative hydroxyl group in the substrate afforded a variety of chiral γ-butyrolactones bearing two stereocenters. Employing the carbonylation-lactonization products as the key intermediates, the route from the alkenes with single chiral center to chiral THF-fused bicyclic γ-lactones containing three stereocenters was developed.
Effective α-tosyloxylation of ketones using 1,1,1-trifluoro-2-iodoethane as catalyst
Zhang, Bijun,Han, Liuquan,Hu, Jiantao,Yan, Jie
supporting information, p. 3264 - 3270 (2015/10/06)
With 1,1,1-trifluoro-2-iodoethane as catalyst, a novel and efficient procedure has been developed for preparation of α-tosyloxyketones from ketones. In this protocol, 1,1,1-trifluoro-2-iodoethane is first oxidized by m-chloroperbenzoic acid to a hypervale
An iodobenzene-catalysed domino route toward quinoxaline derivatives from simple ketones and o-phenylenediamines in one pot
Li, Xiaoqing,Zhou, Can,Hu, Zhiyan,Xu, Xiangsheng
, p. 579 - 581 (2013/10/22)
An iodobenzene-catalysed domino route to quinoxalines from ketones and o-phenylenediamines in one pot has been developed. This transformation consisted of the generation of Koser's generation, α-tosyloxylation of ketones, nucleophilic substitution and intramolecular dehydration with o-phenylenediamines, and dehydrogenation. Website
A novel one-pot method for αα-tosyloxylation of ketones using a catalytic amount of ammonium iodide
Hu, Jiantao,Zhu, Min,Xu, Yuan,Yan, Jie
experimental part, p. 1226 - 1232 (2012/05/20)
A novel one-pot procedure was designed for the preparation of various α-tosyloxy ketones in good yields by the reaction of ketones with m-chloroperoxybenzoic acid and p-toluenesulfonic acid monohydrate in the presence of catalytic amounts of ammonium iodi
Direct α-oxytosylation of ketones by using pentavalent organobismuth reagents
Sakurai, Naoto,Mukaiyama, Teruaki
, p. 388 - 389 (2008/09/20)
A new method for the preparation of α-tosyloxy ketones by a direct oxytosylation of ketones using a combination of heterocyclic pentavalent organobismuth compounds and p-toluenesulfonic acid monohydrate is described. Copyright
