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- 3. Justify aromaticity (or lack thereof) in the biological molecules below. H2N NH2 H H `NH2 `NH2 N- NH N. `NH ADP ADP N. `NH2 H ОН ОН ОН ОН adenine guanine cytosine thymine NAD+ NADH H OH H3C. H3C. CH30. CH30 10 10 H3C 'N' N. H3C N. CH30 CH30 N' CH2 OH CH2 H H-C-OH H -OH- ubiquinone ubiquinol H-C-OH H- -он Н-С—он H Ċ-OH CH2 CH2 ADP ADP FAD FADH212HW9 #13
- Which of the following are aromatic?Draw structures for compounds A through D. 1. NaOH, H2O A 2. H,0°A 1. NaOEt, EtOH (a) Ethyl acetoacetate → B 2. 1-Chloro-4-methylpentane Same as above 1. NaOH, H2O D 1. NaOC(CH3)3, (CH3);COH (b) A 2. 1-Chloropropane 2. H,0ºAWhich structure is different from the following? * HCH3 CH3 CH3 a) CH3 CH, CH, b) H H3C- CH3 CH3 H H CH3 CH3 H. H. CH3 d)
- Explain why HC = CH is more acidic than CH3CH3, even though the C - H bond in HC = CH has a higher bond dissociation energy than the C - H bond in CH3CH35) Use compounds X, Y and Z (shown below) to answer the following questions. H. H3C" "CH3 ОН CH3 compound X compound Y compound Z a) Is compound X classified as cis, trans or neither? b) Is compound Y classified as E, Z or neither? c) Is compound Z classified as R, S or neither? d) Are compounds X and Y constitutional isomers of each other? (YES or NO) e) Are compounds Y and Z constitutional isomers of each other? (YES or NO) f) Classify compound Y as a primary, secondary or tertiary alcohol. g) Which compound(s) is(are) chiral? h) Give the IUPAC name for compound Z, omitting the absolute configuration (R or S) designation. i) In the indicated spaces below, draw stereoisomers of compounds X, Y and Z. stereoisomer of compound X stereoisomer of compound Y stereoisomer of compound ZI'm looking for an alkene with a single methyl group and an anti markovnikov Br at the last carbon and the markovnikov with Br on the bottom. The image is attached is just to illustrate positioning of the Br, and not an actual alkene



