Long-Range Stereo-Relay: Relative and Absolute Configuration of 1,n-Glycols from Circular Dichroism of Liposomal Porphyrin Esters
摘要:
The relative and absolute configurations of long-chain syn- and anti-1,5-, 1,7- and 1,9-glycols were determined from exciton-coupled circular dichroism (ECCD) of the corresponding bis-5-(4'-carboxyl)-5,10,15,20-tetraphenylporphyrin esters measured in uniform (phi = 26 nm), unilamellar liposomes. Long-range transmission of configuration by ECCD is made possible through partial ordering of glycol ester-lipid molecules by liposomal bilayers.
Long-Range Stereo-Relay: Relative and Absolute Configuration of 1,n-Glycols from Circular Dichroism of Liposomal Porphyrin Esters
摘要:
The relative and absolute configurations of long-chain syn- and anti-1,5-, 1,7- and 1,9-glycols were determined from exciton-coupled circular dichroism (ECCD) of the corresponding bis-5-(4'-carboxyl)-5,10,15,20-tetraphenylporphyrin esters measured in uniform (phi = 26 nm), unilamellar liposomes. Long-range transmission of configuration by ECCD is made possible through partial ordering of glycol ester-lipid molecules by liposomal bilayers.
Toward the Creation of NMR Databases in Chiral Solvents: Bidentate Chiral NMR Solvents for Assignment of the Absolute Configuration of Acyclic Secondary Alcohols
作者:Yoshihisa Kobayashi、Nobuyuki Hayashi、Yoshito Kishi
DOI:10.1021/ol0171160
日期:2002.2.1
The absolute configuration of acyclic secondary alcohols can be established from analysis of the chemical shift behaviors of the adjacent carbons in bidentate chiral solvents (R,R)- and (S,S)-1d as formulated in the boxed illustration.
Long-Range Stereo-Relay: Relative and Absolute Configuration of 1,<i>n</i>-Glycols from Circular Dichroism of Liposomal Porphyrin Esters
作者:John B. MacMillan、Tadeusz F. Molinski
DOI:10.1021/ja047741a
日期:2004.8.1
The relative and absolute configurations of long-chain syn- and anti-1,5-, 1,7- and 1,9-glycols were determined from exciton-coupled circular dichroism (ECCD) of the corresponding bis-5-(4'-carboxyl)-5,10,15,20-tetraphenylporphyrin esters measured in uniform (phi = 26 nm), unilamellar liposomes. Long-range transmission of configuration by ECCD is made possible through partial ordering of glycol ester-lipid molecules by liposomal bilayers.