Carbohydrate-2-deoxy-2-phosphonates: Simple Synthesis and Horner-Emmons Reaction
作者:Elangovan Elamparuthi、Torsten Linker
DOI:10.1002/anie.200804725
日期:2009.2.23
Phosphorus meets carbohydrates: Dimethyl phosphite reacts with ceric(IV) ammoniumnitrate (CAN) to give phosphonyl radicals that add to glycals 1. The derivatives 2 were isolated in high yields and during a subsequent Horner–Emmons reaction underwent an interesting elimination to give 3,6‐dihydro‐2H‐pyrans 3. The short sequence with simple precursors is applicable to the transformation of hexoses,