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A (2R,5S)-2-o-anisyl-3-oxa-1-aza-2-phosphabicyclo[3.3.0]octane–borane complex

✍ Scribed by Brunel, J. M. ;Buono, G. ;Baldy, A. ;Feneau-Dupont, J. ;Declercq, J. P.

Book ID
114510774
Publisher
International Union of Crystallography
Year
1994
Tongue
English
Weight
209 KB
Volume
50
Category
Article
ISSN
0108-2701

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## Abstract Carbonyl ylide‐like intermediates are involved in the 1,5‐electrocyclization of the bicyclo[3.2.0]heptenes 3a–c. The activation barriers analyzed by the time‐ and temperature‐dependence of the __exo__ ⇌ __endo__ isomerization of specifically deuterated derivatives or of the racemization