Copper-Catalyzed Asymmetric Synthesis of Tertiary α-Hydroxy Phosphonic Acid Derivatives with In Situ Generated Nitrosocarbonyl Compounds as the Oxygen Source
作者:Biplab Maji、Hisashi Yamamoto
DOI:10.1002/anie.201408893
日期:2014.12.22
α‐Hydroxy phosphonic acids and their derivatives are highly bioactive structural motifs. It is now reported that these compounds can be accessed through the copper‐catalyzed direct α‐oxidation of β‐ketophosphonates using in situ generated nitrosocarbonyl compounds as an electrophilic oxygen source. These reactions proceeded in high yields (up to 95 %) and enantioselectivities (up to >99 % ee) for both
Nucleophilic addition to the carbonyl group of β-keto phosphonates has been studied with several Grignard reagents. Allyl magnesium halides have proven particularly effective.
已经用几种格氏试剂研究了对 β-酮膦酸酯的羰基的亲核加成。烯丙基卤化镁已被证明特别有效。
Regiochemistry of the rearrangement of cyclohexenyl and cyclohexadienyl phosphates to .beta.-keto phosphonates
作者:Katherine B. Gloer、Theodora Calogeropoulou、John A. Jackson、David F. Wiemer
DOI:10.1021/jo00296a052
日期:1990.4
Addition of Organometallic Nucleophiles to β-Keto Phosphonates
作者:LoriAnn M. Lentsch、David F. Wiemer
DOI:10.1021/jo990388k
日期:1999.7.1
some Grignard reagents with β-keto phosphonates results in nucleophilic addition to the carbonyl group to afford β-hydroxy phosphonates with extension of the carbon skeleton. Additions of allylmagnesium reagents have proven particularly efficient, especially in the presence of BF3·OEt2. Reactions of allylic zinc reagents with β-keto phosphonates also gave the desired β-hydroxy phosphonates, often in even