Technical Notes：
1.Used for synthesis of corresponding ketone via 2 -iodoxybenzenesulfonic acid catalyzed selective oxidation.
2.Used for the asymmetric synthesis of H-phosphinate esters.
3.Used in total synthesis of natural products e .g. pyrrolizidinones.
4.Reagent for synthesis of diaryl phosphinates having cyclohexyloxy chiral auxiliaries used in Ir-catalyzed c -H amidation of arylphosphoryls.
5.Component of the pentacarboxycyclopentadiene Brønsted acid catalyst used for an enantioselective catalytic inverse electron-demand Diels-Alder reaction of salicylaldehyde acetal-derived oxocarbenium ions and vinyl ethers to generate 2,4-dioxychromanes is described .
Strem
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