3,4-O-Isopropyl-idene-2-C-methyl-d-galactonolactone

3,4-O-Isopropyl-idene-2-C-methyl-d-galactonolactone

X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the title mol-ecule, C(10)H(16)O(6), in which the 1,5-lactone ring exists in a boat conformation. The use of d-galactose in the synthesis determined the absolute stereochemistry. The crystal exists as O-H⋯O...

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Veröffentlicht in:Acta crystallographica. Section E, Structure reports online Structure reports online, 2010-01, Vol.66 (Pt 2), p.o406-o407
Hauptverfasser: Dai, N, Jenkinson, S F, Fleet, G W J, Watkin, D J
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container_title Acta crystallographica. Section E, Structure reports online
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creator Dai, N
Jenkinson, S F
Fleet, G W J
Watkin, D J
description X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the title mol-ecule, C(10)H(16)O(6), in which the 1,5-lactone ring exists in a boat conformation. The use of d-galactose in the synthesis determined the absolute stereochemistry. The crystal exists as O-H⋯O hydrogen-bonded layers in the ab plane, with each mol-ecule acting as a donor and acceptor for two hydrogen bonds.
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title 3,4-O-Isopropyl-idene-2-C-methyl-d-galactonolactone
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