Conclusions
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1.
The bromoalkyl groups of the phenacyl bromides and theirω-methyl-substituted derivatives distribute themselves in equilibrium proportions between cis and gauche positions.
-
2.
The aryl group rotates out of the carbonyl plane by as much as 70° under the action of two gaucheω substituents; a single substituent sterically suppresses one direction of rotation.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 80–84, January, 1978.
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Arbuzov, B.A., Lapkin, I.I., Khamatullina, I.M. et al. Geometrical structures of certain ω-substituted acetophenones. Russ Chem Bull 27, 69–72 (1978). https://doi.org/10.1007/BF01153211
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DOI: https://doi.org/10.1007/BF01153211