Facile Preparation of (Phosphorylalkyl)-Functionalized Cyclopropanols and Cyclopropylamines
作者:Harald Winsel、Vesta Gazizova、Oleg Kulinkovich、Valeriy Pavlov、Armin de Meijere
DOI:10.1055/s-1999-2972
日期:1999.12
The reactions of esters 1 and dialkylamides 8 of 3-phosphorylpropionic acids with Grignard reagents 6 in the presence of titanium tetraisopropoxide 5 or methyltitanium triisopropoxide 11 give 1-substituted and 1,2-disubstituted phosphorylated cyclopropanols 7 and cyclopropylamines 12 in moderate to very good yields (37-71 and 39-86%, respectively). These useful transformations convincingly demonstrate