Preparation of single-enantiomer semiochemicals using 2-methoxy-2-(1-naphthyl)propionic acid and 2-methoxy-2-(9-phenanthryl)propionic acid
摘要:
Enantioresolution of 3-octanol, 6-methyl-5-hepten-2-ol (sulcatol), and 1-octen-3-ol was conducted using (S)-(+)-2-methoxy-2-(1-naphthyl)propionic acid (M alpha NP acid) and (S)-(+)-2-methoxy-2-(9-phenanthryl)propionic acid (M9PP acid). In each case, the diastereomeric esters obtained were readily separated by HPLC. The stereochemistry of the esters could be assigned from their respective H-1 NMR analyses. Solvolyses of the esters gave enantiopure alcohols and acids. M alpha NP and M9PP acids displayed almost equivalent properties in H NMR anisotropy. The chiral resolving ability of M9PP acid was slightly superior to that of MaNP acid in HPLC. alpha 2005 Elsevier Ltd. All rights reserved.
Preparation of single-enantiomer semiochemicals using 2-methoxy-2-(1-naphthyl)propionic acid and 2-methoxy-2-(9-phenanthryl)propionic acid
摘要:
Enantioresolution of 3-octanol, 6-methyl-5-hepten-2-ol (sulcatol), and 1-octen-3-ol was conducted using (S)-(+)-2-methoxy-2-(1-naphthyl)propionic acid (M alpha NP acid) and (S)-(+)-2-methoxy-2-(9-phenanthryl)propionic acid (M9PP acid). In each case, the diastereomeric esters obtained were readily separated by HPLC. The stereochemistry of the esters could be assigned from their respective H-1 NMR analyses. Solvolyses of the esters gave enantiopure alcohols and acids. M alpha NP and M9PP acids displayed almost equivalent properties in H NMR anisotropy. The chiral resolving ability of M9PP acid was slightly superior to that of MaNP acid in HPLC. alpha 2005 Elsevier Ltd. All rights reserved.
Preparation of single-enantiomer semiochemicals using 2-methoxy-2-(1-naphthyl)propionic acid and 2-methoxy-2-(9-phenanthryl)propionic acid
作者:Akio Ichikawa、Hiroshi Ono
DOI:10.1016/j.tetasy.2005.05.036
日期:2005.8
Enantioresolution of 3-octanol, 6-methyl-5-hepten-2-ol (sulcatol), and 1-octen-3-ol was conducted using (S)-(+)-2-methoxy-2-(1-naphthyl)propionic acid (M alpha NP acid) and (S)-(+)-2-methoxy-2-(9-phenanthryl)propionic acid (M9PP acid). In each case, the diastereomeric esters obtained were readily separated by HPLC. The stereochemistry of the esters could be assigned from their respective H-1 NMR analyses. Solvolyses of the esters gave enantiopure alcohols and acids. M alpha NP and M9PP acids displayed almost equivalent properties in H NMR anisotropy. The chiral resolving ability of M9PP acid was slightly superior to that of MaNP acid in HPLC. alpha 2005 Elsevier Ltd. All rights reserved.