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Synlett 2013; 24(4): 457-460
DOI: 10.1055/s-0032-1318214
DOI: 10.1055/s-0032-1318214
letter
Synthesis and Application of an Enantiomerically Pure Triflate Analogue of Microbially Derived 3-Halo-cis-1,2-dihydrocatechol Acetonides
Further Information
Publication History
Received: 16 December 2012
Accepted after revision: 22 January 2013
Publication Date:
06 February 2013 (online)
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Dedicated to Professor Lutz F. Tietze on the occasion of his 70th birthday.
Abstract
(1S,2S)-3-Trifloxy-cis-1,2-dihydrocatechol acetonide, a useful chiral building block, was prepared from d-ribose in good overall yield using a carbonyl allylation and a ring-closing metathesis as the key C–C bond-forming steps. Negishi cross-coupling of this triflate with a serine-derived organozinc iodide proceeded efficiently to afford an α-amino acid derivative as a potential precursor for scabrosin esters (ambewelamides).