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1 containing a C11′-C12′ alkyne leads preferentially to the 15-membered macrolactone: Hillier, M. C.; Price, A. T.; Meyers, A. I. J. Org. Chem. 2001, 66, 6037-6045.
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The enantiomeric excess is estimated to be higher than 94% by two independent methods (chiral GC, Mosher ester analysis)
-
The enantiomeric excess is estimated to be higher than 94% by two independent methods (chiral GC, Mosher ester analysis).
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18
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PMB-protected 3-hydroxypropanal 13 is prepared from 1,3-propandiol by mono PMB protection and Parikh-Doering oxidation in 77% overall yield
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PMB-protected 3-hydroxypropanal 13 is prepared from 1,3-propandiol by mono PMB protection and Parikh-Doering oxidation in 77% overall yield.
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