When methyl-β-D-glucopyranoside is treated with benzaldehyde, it forms a six membered cyclic acetal. The stable conformation of this acetal has to be drawn and the new chiral centre has to be identified. Concept Introduction: The benzaldehyde molecule is used as a protecting agent for some reactions. In methyl-β-D-glucopyranoside the benzaldehyde acts as protecting group for C4 and C6 –OH groups by forming the cyclic acetal.

Question

ох 4-tert-butyl oxy cyclohex-1-ene Incorrect, 1 attempt remaining The systematic name of this compound classifies the -OR group as a substituent of the hydrocarbon, which is considered the principal functional group. The ether substituent is named with the suffix 'oxy'. The general format for the systematic name of a hydrocarbon is: [prefix/substituent] + [parent] + [functional group suffix] Substituents are listed in alphabetical order. Molecules with a chiral center will indicate the absolute configuration at the beginning of its name with the R and S notation.

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Chapter 25, Problem 25.31P

Interpretation Introduction

Interpretation:

When methyl-β-D-glucopyranoside is treated with benzaldehyde, it forms a six membered cyclic acetal. The stable conformation of this acetal has to be drawn and the new chiral centre has to be identified.

Concept Introduction:

The benzaldehyde molecule is used as a protecting agent for some reactions. In methyl-β-D-glucopyranoside the benzaldehyde acts as protecting group for C4 and C6 –OH groups by forming the cyclic acetal.

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