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Determination of enantiomeric purity of axially chiral biaryls

✍ Scribed by Kuninobu Kabuto; Fujiko Yasuhara; Shozo Yamaguchi

Publisher: Elsevier Science
Year: 1980
Tongue: French
Weight: 125 KB
Volume: 21
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)71197-x

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✦ Synopsis

Sumnary: Enantlomenc purities of axially choral biaryls with hydroxyl, amino, and carboxyl groups can be easily determlned by pmr spectra using MTPA derivatives and shift reagent. Recently, Behnam et al. have reported' that the methyl proton signals in racemlc biaryls such as dimethyl 6,6'-dlmethoxy-2,2'-dlphenate were separated Into two peaks in the presence of

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