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Absolute structure of (11E, 1S, 3S, 4R, 7S, 8R, 14S)-3,7-diiodo-4,8-epoxy-euniolide (1998)

Rodríguez, Abimael D. ; Acosta, Ana L. ; Huang, Songping D.

Springer

Journal of chemical crystallography 28 (1998), S. 17-21

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ISSN: 1572-8854

Keywords: 3,7-Diiodo-4,8-epoxy-euniolide ; euniolide ; iodine addition ; absolute configuration analysis

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences , Physics

Notes: Abstract 3,7-Diiodo-4,8-epoxy-euniolide (2) was synthesized from euniolide (1) by the addition reaction of iodine in the presence of triphenylphosphine in CH2Cl2. The absolute structure of 2 was unambiguously determined by a combination of 1H and 13C NMR, HREI mass spectroscopy, and x-ray single crystal analysis as (11E, 1S, 3S, 4R, 7S, 8R, 14S)-3,7-diiodo-4,8-epoxy-cembra-11,15-dien-16,14-olide. X-ray crystallographic data for 2: Orthorhombic P212121 (#19), a = 10.9688(7), b = 11.3909(8), c = 16.885(1) Å, ρcalcd = 1.795 g cm−3, and for Z = 4.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1021718416971

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