Metal‐Free,
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‐Iodosuccinimide‐Induced Regioselective Iodophosphoryloxylation of Alkenes with P(O)−OH Bonds
作者:Biquan Xiong、Shipan Xu、Yu Zhu、Lei Yao、Congshan Zhou、Yu Liu、Ke‐Wen Tang、Wai‐Yeung Wong
DOI:10.1002/chem.202000575
日期:2020.8.3
the iodination reagent under transition‐metal‐free conditions. The present protocol is compatible with different functional groups, and suitable for various alkenes and P(O)−OH compounds. A variety of functionalized β‐iodo‐1‐ethyl phosphinic/phosphoric acid esters are obtained in good to excellent yields, which could be further transformed to diversified building blocks for the synthesis of bioactive
Copper‐Catalyzed Diphenylation of P(O)‐OH Bonds with Cyclic Diaryliodonium Salts
作者:Gang Wang、Biquan Xiong、Congshan Zhou、Yu Liu、Weifeng Xu、Chang‐An Yang、Ke‐Wen Tang、Wai‐Yeung Wong
DOI:10.1002/asia.201901284
日期:2019.12.2
A copper-catalyzed diphenylation of P(O)-OH bonds with cyclic diaryliodonium salts is described. Valuable 2'-iodo substituted biaryl phosphinic/phosphoric acid esters were obtained in good to excellent yields, which could be further transformed to diversified building blocks for the synthesis of bioactive compounds, pharmaceuticals and functional materials.
Kinetic Resolution of Hydroperoxides with Enantiopure Phosphines: Preparation of Enantioenriched Tertiary Hydroperoxides
作者:Tom G. Driver、Jason R. Harris、K. A. Woerpel
DOI:10.1021/ja070482f
日期:2007.4.1
kinetic resolution strategy capable of accessing opticallyactivetertiary hydroperoxides is reported. Readily accessible tertiary hydroperoxides are resolved with commercially available (R)- or (S)-xylyl-PHANEPHOS with selectivity factors as large as 37. The resulting bis(phosphineoxide) can be recycled in high yields. The isolated mono(phosphineoxide) intermediate resolved hydroperoxides with the
A novel and efficient electrophilicfluorination of secondary phosphine oxides with Selectfluor has been achieved. This transformation provides direct access to phosphoric fluorides in up to 92% yield under mild conditions. In addition, P–O bond construction via a one-pot coupling process of secondary phosphine oxides with water or alcohols in the presence of Selectfluor leads to the formation of phosphinic