Placement for Spanish at the University of Arizona

Gregg, Karl C.

doi:10.1632/adfl.2.2.56

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Conformation and Chemical Reactivity1

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1997

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“…Studies in our laboratory with several bicyclo[ m .1.0]alk-3-en-2-ones have demonstrated high levels of 1,2-asymmetric induction and variable levels of 1,4-asymmetric induction . These results will be disclosed shortly.…”

Section: Conformation and Chemical Reactivitymentioning

confidence: 84%

Development of Molecular Mechanics Torsion Parameters for α,β-Cyclopropyl α‘,β‘-Enones and Conformational Analysis of Bicyclo[m.1.0]alk-3-en-2-ones

Mash¹,

Gregg²,

Stahl³

1997

J. Org. Chem.

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Conformations of cyclopropyl vinyl ketone have been studied using ab initio methods in an effort to quantify the effects of conjugative overlap between the cyclopropane ring and adjacent enone carbonyl. With respect to the cyclopropyl carbonyl torsion, cyclopropyl vinyl ketone exhibits a global energy minimum in the s-cis conformer and a local energy minimum in the s-trans conformer. The potential energy curve obtained was used to derive torsion parameters which were employed in molecular mechanics studies of the conformations of the set of bicyclo[m.1.0]alk-3-en-2-ones having larger ring sizes from 5- to 16-membered.

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Section: Conformation and Chemical Reactivitymentioning

confidence: 84%