Chapter 24: Problem 58
Is 3 -chloro-3-methylhexane chiral?
Chapter 24: Problem 58
Is 3 -chloro-3-methylhexane chiral?
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Get started for free(a) Draw the condensed structure of the tripeptide Gly-Gly-His. (b) How many different tripeptides can be made from the amino acids glycine and histidine? Give the abbreviations for each of these tripeptides, using the three-letter and one-letter codes for the amino acids.
Pure acetic acid is a viscous liquid, with high melting and boiling points (\(16.7^{\circ} \mathrm{C}\) and \(118^{\circ} \mathrm{C}\)) compared to compounds of similar molecular weight. Suggest an explanation.
Aldehydes and ketones can be named in a systematic way by counting the number of carbon atoms (including the carbonyl carbon) that they contain. The name of the aldehyde or ketone is based on the hydrocarbon with the same number of carbon atoms. The ending -al for aldehyde or -one for ketone is added as appropriate. Draw the structural formulas for the following aldehydes or ketones: (a) propanal, (b) 2-penta-none, (c) 3-methyl-2-butanone, (d) 2-methylbutanal.
Indicate whether each of the following molecules is capable of geometrical isomerism. For those that are, draw the structures: (a) \(1,1\) -dichloro-1-butene, (b) \(2,4\) -dichloro-2-butene, (c) \(1,4\) -dichlorobenzene, (d)\(4,4\)-dimethyl-2-pentyne.
Write a condensed structural formula for each of the following: (a) an acid with the formula \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{O}_{2},\) (b) a cyclic ketone with the formula \(\mathrm{C}_{5} \mathrm{H}_{8} \mathrm{O},(\mathbf{c})\) a dihydroxy compound with the formula \(\mathrm{C}_{3} \mathrm{H}_{8} \mathrm{O}_{2},(\mathbf{d})\) a cyclic ester with the formula \(\mathrm{C}_{5} \mathrm{H}_{8} \mathrm{O}_{2} .\)
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