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Circular dichroism of thiolo-γ-lactones and their configurations and conformations

✍ Scribed by Hiroshi Meguro; Toshio Konno; Katura Tuzimura

Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
210 KB
Volume
13
Category
Article
ISSN
0040-4039

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✦ Synopsis

It has been suggested that the sign of the circular dichroism (CD) maximum (C=O at 220-230 run) of the Y-lactones might be determined by the two factors. That is, configuration at C-2 (1) (2-(S)-configuration gave positive sign and 2-(R)-configuration gave negative sign) and the conformation of the five membered lactone ring (2) (an envelope C-3 carbon above the nodal plane in Fig.1 gave positive

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