Synthesis of tri-substituted furans: mild Ti(IV)-mediated couplings to acetals. Construction of the epoxy hemi-amido ketal of fusarin C
摘要:
Coupling of beta-keto amides and beta-keto esters to 2-alkoxy methyl furanosides with TiCl4 directly furnishes tri-substituted furans. The epoxy hemi-amido ketal ring system of fusarin C is constructed in two steps using this methodology.
Synthesis of tri-substituted furans: mild Ti(IV)-mediated couplings to acetals. Construction of the epoxy hemi-amido ketal of fusarin C
摘要:
Coupling of beta-keto amides and beta-keto esters to 2-alkoxy methyl furanosides with TiCl4 directly furnishes tri-substituted furans. The epoxy hemi-amido ketal ring system of fusarin C is constructed in two steps using this methodology.
Enantiomerically pure acetals in organic synthesis. 1. Chromatographic separability of furanoside and pyranoside acetals derived from .alpha.-hydroxy esters
作者:Eugene A. Mash、Jeffrey B. Arterburn、James A. Fryling、Susan H. Mitchell
DOI:10.1021/jo00003a034
日期:1991.2
A general chromatographic separation of diastereomeric furanoside and pyranoside acetals derived from alpha-hydroxy esters is described. Application of this separation methodology is made to rapid syntheses of the diastereomers of (S)-methyl lactyl 4-deoxy-beta-erythro-pentopyranoside.
MASH, EUGENE A.;ARTERBURN, JEFFREY B.;FRYLING, JAMES A.;MITCHELL, SUSAN H+, J. ORG. CHEM., 56,(1991) N, C. 1088-1093
作者:MASH, EUGENE A.、ARTERBURN, JEFFREY B.、FRYLING, JAMES A.、MITCHELL, SUSAN H+