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Synlett 1989; 1989(1): 24-25
DOI: 10.1055/s-1989-34686
DOI: 10.1055/s-1989-34686
letter
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Asymmetric 1,2- and 1,3-Inductions and Solvent Dependence Found in Chelate-Controlled Additions of Grignard Reagents and Cuprates to Chiral β-Formyl Esters. Stereoselective Synthesis of γ-Lactones
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Publikationsverlauf
Publikationsdatum:
26. Februar 2002 (online)
The stereoselectivity of cuprate or Grignard reagent additions to chiral β-formyl esters 1, 3, and 5 highly depends on the solvent employed. Also, the substitution pattern of the aldehyde determines whether the cis- or trans-γ-lactone is the major product.