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The structure of 2-phenylperhydro-1,2-oxazolo[3,2-c] [1,4]oxazine
Authors:Mazhar-Ul-Haque  M. Sakhawat Hussain
Affiliation:(1) Department of Chemistry, King Fahd University of Petroleum and Minerals, 31261 Dhahran, Saudi Arabia
Abstract:The title compound crystallizes in the monoclinic space group P21/n, witha=9.590(6),b=11.574(2),c=9.609(2) Å, beta=105.72(3)o andZ=4. The structure was solved by direct methods and refined by full matrix least squares methods toR=0.039 for 1899 observed reflections. The stereochemistry of this 6/5 ring system is found to becis-fused with C(3)–C(4) bond in the axial and N(9)–O(1) bond in equatorial disposition. The six-membered ring in the molecule is in the chair and the five-membered isoxazolidine ring adopts an envelope conformation.
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