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ChemInform Abstract: Synthesis, Enzymic Resolution and Enantiomeric Enhancement of Bis(hydroxymethyl)[7]thiaheterohelicenes.

✍ Scribed by K. TANAKA; H. OSUGA; H. SUZUKI; Y. SHOGASE; Y. KITAHARA

Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
29
Category
Article
ISSN
0931-7597

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✦ Synopsis

Synthesis, Enzymic Resolution and Enantiomeric Enhancement of Bis(hydroxymethyl) [7]thiaheterohelicenes.

-Lipase-catalyzed transesterification of the title compound affords the helicenediol with 98% e.e. Column chromatography of optically enriched helicenediol on silica gel results in a further enantiomeric enhancement. A possible explanation of this phenomenon is given.

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