87569-06-0Relevant articles and documents
Chiral Acetylenes as Synthetic Intermediates. 4. Synthesis and Chiroptical Properties of Optically Active α,β-Acetylenic Ketones
Giacomelli, Giampaolo,Rosini, Carlo,Caporusso, Anna Maria,Palla, Fabio
, p. 4887 - 4891 (1983)
The preparation of some optically active α,β-acetylenic ketones from chiral 1-alkynes or acid chlorides is reported along with the evaluatiun of the stereospecificity of the synthetic methods adopted.For the compounds prepared, the CD spectra are presented and discussed; Cotton effects are observed in correspondence with the n -> ?* and ? -> ?* transitions.In agreement with previous hypotheses, another electronic transition at ca. 250 nm is also measured in the CD spectra of the title compounds.
