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Synthesis and X-ray diffraction data of 4-benzyloxy-1-oxaspiro-[4.6]-undec-3-en-2-one

Published online by Cambridge University Press:  17 December 2013

Jose H. Quintana ,
J. A. Henao ,
Elvis Robles  and
Juan Manuel Urbina
Jose H. Quintana
Affiliation:
Grupo de Investigación en Química Estructural (GIQUE), Centro de Investigación en Biomoléculas, (CIBIMOL), Escuela de Química, Facultad de Ciencias, Universidad Industrial de Santander, A.A. 678, Carrera 27, Calle 9 Ciudadela Universitaria, Bucaramanga, Colombia
J. A. Henao
Affiliation:
Grupo de Investigación en Química Estructural (GIQUE), Centro de Investigación en Biomoléculas, (CIBIMOL), Escuela de Química, Facultad de Ciencias, Universidad Industrial de Santander, A.A. 678, Carrera 27, Calle 9 Ciudadela Universitaria, Bucaramanga, Colombia
Elvis Robles
Affiliation:
Laboratorio de Química Orgánica y Biomolecular (LQOBio), Escuela de Química, Facultad de Ciencias, Universidad Industrial de Santander, A.A. 678, Carrera 27, Calle 9 Ciudadela Universitaria, Bucaramanga, Colombia
Juan Manuel Urbina
Affiliation:
Laboratorio de Química Orgánica y Biomolecular (LQOBio), Escuela de Química, Facultad de Ciencias, Universidad Industrial de Santander, A.A. 678, Carrera 27, Calle 9 Ciudadela Universitaria, Bucaramanga, Colombia
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Abstract

The 4-benzyloxy-1-oxaspiro-[4.6]-undec-3-en-2-one (C17H20O3) was prepared through a domino reaction from benzyl α-hydroxycycloheptanecarboxylate and the cumulated ylide Ph3P=C=C=O by: (i) addition and (ii) intramolecular Wittig Olefination reaction. The reaction was carried out using anhydrous toluene as solvent under an argon atmosphere in a Schlenk flask. Molecular characterization was performed by Fourier transform infrared spectroscopy, gas chromatography-mass spectrometry, (1H,13C – mono and bidimensional) nuclear magnetic resonance spectroscopy; crystallographic characterization was completed by X-ray diffraction of polycrystalline samples (XRPD). The title compound crystallized in a monoclinical system and unit-cell parameters are reported [a = 13.207(3) Å, b = 5.972(1) Å, c = 19.719(4) Å, β = 105.67(2)°, unit-cell volume V = 1497.5 (4) Å3, Z = 4]. All of the measured lines were indexed with the P21/n (No. 14) space group.

Keywords

O-Bencyl tetronateX-ray powder diffraction dataspiro tetronic acid
Type
New Diffraction Data
Information
Powder Diffraction , Volume 28 , Issue 4 , December 2013 , pp. 315 - 320
Copyright
Copyright © International Centre for Diffraction Data 2013 

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