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Enantioresolution of fluorinated diphenylmethanols and determination of their absolute configurations by X-Ray crystallographic and 1H NMR anisotropy methods

✍ Scribed by Junpei Naito; Masashi Kosaka; Takeo Sugito; Masataka Watanabe; Nobuyuki Harada; William H. Pirkle


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
536 KB
Volume
16
Category
Article
ISSN
0899-0042

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πŸ“œ SIMILAR VOLUMES


Enantioresolution and absolute configura
✍ Masashi Kosaka; Takeo Sugito; Yusuke Kasai; Shunsuke Kuwahara; Masataka Watanabe πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 147 KB πŸ‘ 1 views

## Abstract __meta__‐Substituted diphenylmethanols were enantioresolved by the method of chiral phthalic acid yielding enantiopure alcohols. Their absolute configurations were unambiguously determined by X‐ray crystallography of chiral phthalate esters and/or by the ^1^H NMR anisotropy method using

Determination of optical purity and abso
✍ Satoshi Murakami; Kazuhiro Satou; Taturo Kijima; Masataka Watanabe; Taeko Izumi πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 271 KB πŸ‘ 1 views

## Abstract The enantiopure of (__R__)‐(βˆ’) MΞ±NPA was allowed to react with racemic 18‐(__tert__‐butyldimethylsilyloxy)‐5‐octadecayne‐7‐ol which was derived from dodecane‐1,12‐diol, yielding diastereomeric esters mixture. These racemic esters were easily separated by HPLC on silica‐gel. The absolute