Enantioselective synthesis of pantolactone analogues from an ephedrine-derived morpholine-dione
摘要:
An efficient enantioselective synthesis of beta,beta-dialkyl alpha-hydroxy gamma-butyrolactones, analogues of pantolactone, has been developed employing a stereoselective Prins reaction of chiral alkylidene morpholinones, as the key step. Enantioselective synthesis of a naturally occurring pantolactone homologue and a spiro analogue of pantolactone was achieved with this protocol. (C) 2003 Elsevier Science Ltd. All rights reserved.
Enantioselective synthesis of β,β-dialkyl α-hydroxy γ-butyrolactones
摘要:
An ephedrine-derived morpholine dione is employed in the synthesis of chiral alkylidene morpholinones that are efficiently converted to beta -substituted alpha-gamma -dihydroxy butyramides, precursors of the corresponding butyrolactones. Enantioselective synthesis of a spiro analog of pantolactone as well as a naturally occurring pantolactone homolog is achieved with this protocol. (C) 2001 Elsevier Science Ltd. All rights reserved.
Enantioselective synthesis of β,β-dialkyl α-hydroxy γ-butyrolactones
作者:Sunil V Pansare、Annyt Bhattacharyya
DOI:10.1016/s0040-4039(01)01979-7
日期:2001.12
An ephedrine-derived morpholine dione is employed in the synthesis of chiral alkylidene morpholinones that are efficiently converted to beta -substituted alpha-gamma -dihydroxy butyramides, precursors of the corresponding butyrolactones. Enantioselective synthesis of a spiro analog of pantolactone as well as a naturally occurring pantolactone homolog is achieved with this protocol. (C) 2001 Elsevier Science Ltd. All rights reserved.
Enantioselective synthesis of pantolactone analogues from an ephedrine-derived morpholine-dione
作者:Sunil V Pansare、Annyt Bhattacharyya
DOI:10.1016/s0040-4020(03)00408-3
日期:2003.4
An efficient enantioselective synthesis of beta,beta-dialkyl alpha-hydroxy gamma-butyrolactones, analogues of pantolactone, has been developed employing a stereoselective Prins reaction of chiral alkylidene morpholinones, as the key step. Enantioselective synthesis of a naturally occurring pantolactone homologue and a spiro analogue of pantolactone was achieved with this protocol. (C) 2003 Elsevier Science Ltd. All rights reserved.