Lewis acid-promoted direct substitution of 4-methoxy- and 4-phenylthio-2-oxazolidinones by alkyl cuprates. Facile preparation of (3s,4s)-statine and (3s,4s)-cyclohexylstatine.
作者:Seigo Ishibuchi、Yumi Ikematsu、Tadao Ishizuka、Takehisa Kunieda
DOI:10.1016/0040-4039(91)80822-n
日期:1991.7
Treatment of 4-methoxy- and 4-phenylthio-2-oxazolidinones with a combination of cuprates and BF3 results in smooth formation of 4-alkyl and 4-aryl derivatives in high yield. By this method, the titled compounds of biological interest are readily synthesized from (4S,5S)-5-allyl-4-methoxy (or 4-phenylthio)-2-oxazolidinones stereoselectively.