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Most of the elements that give rise to stable heterocycles belong to group d. Is this correct?
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- Write TRUE if the BOLD word/phrase makes the statement correct. Otherwise, write the correct WORD/PHRASE that will make the statement true. If there are two bold words/phrases in a number, write your answer for EACH of the bold words/phrases. 1. The anti-staggered conformation of butane, in which the methyl groups have a dihedral angle of less than 180°, has the highest energy. 2. The formation of 2-methylpropene as side product in the synthesis of tert-butyl chloride is a nucleophilic substitution reaction. 3. The generation of tertiary carbocation is the rate-determining step in tert-butyl chloride synthesis.Draw all the possible conformations of trans- and cis-1,3-dimethylcyclobutane. Which of these conformations is the most stable conformation? Explain your answer. Discuss the type of strain(s) that affect the stability of these compounds.It is easy to imagine a cyclohexane as a flat hexagon and a lot of the time we draw it that way. Looking at 1,3,5-triethylcyclohexane we cannot tell the stability of the molecule from looking at the flat 2D drawing. Explain why we need to look at the 3D configuration and what conformation (axial,equatorial) would each of the three ethyl groups be in for the most stable configuration.
- Give answer all questions with explanation pleaseDetermine which cyclohexane structure has the MOST energy (is the LEAST stable)?Hello, I was reading an answer from the book Organic Chemistry by Brown et al. The question is 2.51 "Draw alternative chair conformations for each substituted cyclohexane and state which chair is more stable." There are then 4 cyclohexanes (labeled a-d). For the "a" cyclohexane, the substituents are arranged as a combination of axial and equatorial in both chair conformations. However, for the "b," "c," and "d," cyclohexanes one chair has only equatorial substituents, and the other chair has only axial substituents. Why is the "a" chair conformation different? https://www.bartleby.com/solution-answer/chapter-2-problem-251p-organic-chemistry-8th-edition/9781305580350/draw-alternative-chair-conformations-for-each-substituted-cyclohexane-and-state-which-chair-is-more/4532cd91-c341-11e9-8385-02ee952b546e
- Which of the molecules shown ("A" through "D") has an enantiomer? H₂C CH₂ CH3 H₂C OA B OC D A a B CH3 C CH3 H₂Ca D CH313 Draw the molecule trans-1-ethyl-3- isopropylcyclohexane conformation. Which is the overall most-stable conformer? Justify your answer. in its chair and its flipped chairThe molar heat of combustion of gaseous cyclopropaneis -2089 kJ/mol; that for gaseous cyclopentane is-3317 kJ/mol. Calculate the heat of combustion per CH2group in the two cases, and account for the difference.
- draw and name two structures that match the description of a trans-dihalocyclopentaneWhich conformation of ethane is more stable?Which of the following statement is false about conjugated systems? A conjugated system is more stable than an unconjugated A system. The s-trans isomer is favored over the s-cis isomer. A conjugated system has C multiple resonance structures. A conjugated system can only D contain two alkenes.
