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Synlett 1993; 1993(7): 501-502
DOI: 10.1055/s-1993-22506
DOI: 10.1055/s-1993-22506
letter
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Improved Horner-Wadsworth-Emmons Olefination of Base Sensitive γ-Chiral β-Ketophosphonates
Further Information
Publication History
Publication Date:
19 March 2002 (online)
A new modification for the Horner-Wadsworth-Emmons reaction, utilizing K2CO3/MeCN as the base/solvent system, has been developed. The modification is particularly advantageous with base labile chiral phosphonates, exemplified by 1 ???? derived from L-serine.