An improved synthesis of a ring-C precursor to cobyric acid
Peter Alan Jacobi, Hui Wang
ARKIVOC · 2010
doi:10.3998/ark.5550190.0011.403 (opens in a new tab)
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Abstract
Alkyne acid 10 was prepared in enantioselective fashion from allylic ester derivative (R)-18 via an E-selective Ireland-Claisen rearrangement followed by Si-assisted elimination of HBr.The present route offers significant advantages in terms of both scalability and overall yield compared to that previously described.Alkyne acid 10 is an attractive ring-C precursor for an ongoing synthesis of cobyric acid.
Abstract licence: CC BY
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