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Asymmetric synthesis of 3-butylphthalide using isomannide and isosorbide as chiral auxiliaries
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作者 Zhen Li Min Yi Hua Zhang Yi Sheng Lai Si Xun Peng 《Chinese Chemical Letters》 SCIE CAS CSCD 2007年第11期1361-1363,共3页
A new approach for asymmetric syntheses of (S) and (R)-3-n-butylphthalide (NBP) is presented. The diastereoselective addition of dibutylzinic to aromatic aldehyde 10 or 11 generated from isomannide- or isosorbid... A new approach for asymmetric syntheses of (S) and (R)-3-n-butylphthalide (NBP) is presented. The diastereoselective addition of dibutylzinic to aromatic aldehyde 10 or 11 generated from isomannide- or isosorbide-derived chiral auxiliary afforded S-NBP or R-NBP in high optical yields. 展开更多
关键词 Asymmetric synthesis 3-N-BUTYLPHTHALIDE isomannide ISOSORBIDE
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Synthesis of Novel δ-amino alcohol ligands derived from Isosorbide and Isomannide
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《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 1999年第S1期188-188,共1页
关键词 amino alcohol ligands derived from Isosorbide and isomannide Synthesis of Novel
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Studies on the Diastereoselective Alkylation Reaction Employing Isomannide and Isosorbide as Chiral Auxiliaries
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作者 Jian Qiang WANG Ming Hua XU +1 位作者 Min ZHONG Guo Qiang LIN(Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences354 Fenglin Lu, Shanghai 200032) 《Chinese Chemical Letters》 SCIE CAS CSCD 1998年第4期325-328,共4页
The studies on the asymmetric alkylation of ester employing D-Isomannide and D-isosorbide as chiral auxiliaries were described. The diastereomeric excess of this reaction was up to 90%.
关键词 diastereoselective alkylation isomannide ISOSORBIDE
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Samarium diiodide induced asymmetric synthesis of γ-butyrolactone using chiral auxiliaries derived from isosorbide and isomannide
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作者 徐明华 林国强 夏立钧 《Chinese Journal of Chemistry》 SCIE CAS CSCD 1998年第6期561-564,共0页
The asymmetric reductive coupling reaction of various acrylates derived from D-isosorbide and D-isomannide with acetophenone mediated by samarium diiodide to give both enantiomers of the optically active γ-butyrolact... The asymmetric reductive coupling reaction of various acrylates derived from D-isosorbide and D-isomannide with acetophenone mediated by samarium diiodide to give both enantiomers of the optically active γ-butyrolactone was described. The best enantiomeric excess of the products was 60%. 展开更多
关键词 Asymmetry Γ-BUTYROLACTONE ISOSORBIDE isomannide samarium diiodide
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