Problem 4.15 Which of the following is (are) possible Newman projections for 2-methylpentane? 2-methylpentanc H CH3 CH2CH3 CH3- CH2CH2CH3 CH3 H H H A B CH3 H. CH3 CH3CH2 H
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- Organic ChemistryFor each pair of compounds, indicate whether the first structure is lower, higher, or about the same in energy as the second structure. Be sure to explain. C angle (c) CH3 OH is OH in energy than/as H3C because: Po (d) CN CN NC- CN CO₂Et is in energy than/as CO₂Et CO₂Et EtO₂C because:Which Newman projection represents the most stable conformation of 3-methylpentane when viewed down the 2-3 carbon-carbon bond? (A) Н HCCH2CH3 H H3C H (В) CH₂ H3CCH₂CH3 Н TH H (C) H офонасна CH3 H3C, H Н (D) на H3C Н Н CH₂CH3 CH3Is this correct ??
- 4 of 14 > Translate the given theoretical conformer from the Newman projection to its wedge-and-dash drawing. You might find it helpful Attempt 3 to make a model to help visualize the different viewpoints. H Br F CI OH CH3 Replace the hydrogen atoms with the appropriate atoms. Select Draw / ||| ||| / Rings C More H Br H Cl F 0 3 Erase O ▼dont providde AI sloution ..Eclipsed adn Anti C2H6 a)Perspective drawings of both conformers b)What is the relationship between the above two structures? How many different eclipsed or anti conformers can you make by rotating around teh C-C bond?
- = III Which of the following line drawings represents the correct stereochemistry of molecule shown in the Newman projection below? I H. H CH3 CH 3 H OCH3 OCH 3 OCH 3 II IV OCH 3 OCH3 III... A) I B) II C) III D) IVE ||| CH3 H H H CH3 H H₂ H H H CH3 CH3 Question 8 of 34 Identify the Newman projection that depicts the gauche conformation of butane. H 11 H H. HCH₂ H V H₂C CH₂ IV H CH ₂ H H CH₂ CH H H CH3 A) I B) II C) III D) IV E) V SubmiGive typed explanation only
- What is the most stable chair conformation of the 4-methoxy-1,2- dimethylcyclohexane structure given below? A a B b с с D d OCH: "CH3 H3C 4-methoxy-1,2-dimethylcyclohexane OCH: OCH3 H3C H3C- H3C- OCH3 H3C -OCH3 ĆH: CH3 CH3 CH3 A B Dnewman 2o Draw the newita projection of the following Compound looking down the Bond indicated via the arrow. Br 15The images illustrate isomers of 1,2-di(2-methylpropyl)cyclohexane in conformational structures. Two are cis and two are trans. Indicate which is the more stable conformation for the cis and which for the trans, and indicate which of all the conformations is the most stable. H H. For each question, if both conformations of the isomer are equally stable, select both. Select the more stable conformation of cis-1,2-di(2-methylpropyl)cyclohexane. A В
