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Structures of (2R,4S,5R)-3,4-dimethyl-2,5-diphenyl-1,3,2-oxazaphospholidine(P–B)borane (1) and of (2R,5S)-5-methyl-2,4,4-triphenyl-1,3,2-dioxaphospholane(P–B)borane (2)

✍ Scribed by Jugé, S. ;Stephan, M. ;Genet, J. P. ;Halut-Desportes, S. ;Jeannin, S.


Book ID
114507194
Publisher
International Union of Crystallography
Year
1990
Tongue
English
Weight
439 KB
Volume
46
Category
Article
ISSN
0108-2701

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(4R,5R)-1,3-Dimethyl-4,5-diphenyl­imidaz
✍ Kawahata, Masatoshi ;Saito, Noriko ;Ishikawa, Tsutomu ;Yamaguchi, Kentaro 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 127 KB

The title compound, C 17 H 18 N 2 O, was obtained by methylation of (4R,5R)-4,5-diphenylimidazolidin-2-one. The C-O bond exhibits double-bond character, and both C-N bonds in the urea group are intermediate between single and double bonds.