Preparation and Polymerization of 6-O-Vinyl-1,2;3,4-di-O-isopropylidene- D-galactopyranose 1
β Scribed by Whistler, Roy L.; Panzer, Hans P.; Goatley, James L.
- Book ID
- 126963337
- Publisher
- American Chemical Society
- Year
- 1962
- Tongue
- English
- Weight
- 284 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-3263
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The title compound was isolated by several recrystallisations from a 1:l mixture of diastereomers which was obtained in 75% yield from the reaction of 1,2:3,4-di-O-isopropylidene-c~-D-galactopyranose with epichlorohydrin. The absolute configuration of this isomer (30% yield) was established by X-ray
The structures of the title compounds (2b and 3) have been investigated in the solid state by X-ray methods. The crystals of 2b are monoclinic, space group P2,, and of 3 orthorhombit, space grtup P2,2,2,. The cell dimensions are: for 2b, a = 9.910(2), b = 11;745W, c = 11.810(3) A, /3 = 97.32(l)"; a