Cyclopropylcarbinyl radicals as three-carbon insertion units: easy synthesis of C-15 macrocyclic ketones by three-carbon ring expansion
作者:Georg Rüedi、Hans-Jürgen Hansen
DOI:10.1016/j.tetlet.2004.04.148
日期:2004.6
isomerization of cyclic 3-cyclopropyl ketones under FVP conditions at 620 °C provides a new and convenient route to δ,ε-unsaturated cycloalkanones. The synthetic potential of this novel three-carbonringexpansion has been demonstrated by the synthesis of (±)-muscone from inexpensive C-12 starting material.