Abstract
Circular dichroism (CD) spectra were taken for 13 2-azetidinones with one, two, and three asymmetric sites. A possible correlation was found between the sign of the Cotton effect (CE) of the n-π* transition of the amide chromophore with the absolute configuration of the endocyclic stereocenters of 3-methyl-, 4-methyl-, and 3,4-dimethyl-2-azetidinones both with and without an achiral N-α, α-dimethylbenzyl or chiral N-α-methylbenzyl substituent.
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Additional information
Communication 1, see ref. [1].
M. V. Lomonosov Moscow State University, 119899 Moscow. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1059–1077, August, 1995. Original article submitted July 29, 1995.
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Dunina, V.V., Romanova, N.N. Synthesis and stereochemistry of chiral 2-azetidinones and 2-azetidinethiones. 2.* Study of the chiroptical properties of some 2-azetidinones. Chem Heterocycl Compd 31, 922–937 (1995). https://doi.org/10.1007/BF01170320
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DOI: https://doi.org/10.1007/BF01170320