Author's Organization：Rikagaku Kenkyusho The Institute of Physical and Chemical Research Rikagaku Kenkyusho The Institute of Physical and Chemical Research Rikagaku Kenkyusho The Institute of Physical and Chemical Research
An abnormal, stereospecific chlorination of 3-hydroxy-4, 5-epoxy-6, 11βH-eudesm-1-en-6, 12-olide (5, 6, 7 and 8) with methanesulfonyl chloride (or p-toluenesulfonyl chloride)-pyridine is described. The stereochemistry of the chlorides (9, 10, 11 and 12) were confirmed by their nuclear magnetic resonance spectra and chemical reactions.
