Consider the structures of the following two d-aldotetroses: Each of these compounds exists as a furanose ring,

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Consider the structures of the following two d-aldotetroses:

Each of these compounds exists as a furanose ring, which is formed when the OH at C4 attacks the aldehyde moiety. Draw each of the following furanose rings:

(a) α-d-Erythrofuranose 

(b) β-d-Erythrofuranose

(c) α-d-Threofuranose 

(d) β-d-Threofuranose

н C=0 C%3D0 Н н- -ОН но- -н Н- -ОН Н- -ОН CH-Oн CH-ОН D-Eгythrose D-Threose

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Organic Chemistry

ISBN: 978-0470917800

1st edition

Authors: David R. Klein

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