Consider the following structures: A. Н. H₂C CH₂ H H B. H.CCH, H₂CH H H CH₂ CHS CH₂ D. H₂C HCH₂ CH, H a. Which Newman projection above represents the lowest energy conformation of 2-methyl butane? b. Which Newman projection represents the structure with the greatest strain due to eclipsing groups?

Consider the following structures: A. Н. H₂C CH₂ H H B. H.CCH, H₂CH H H CH₂ CHS CH₂ D. H₂C HCH₂ CH, H a. Which Newman projection above represents the lowest energy conformation of 2-methyl butane? b. Which Newman projection represents the structure with the greatest strain due to eclipsing groups?

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter7: Cycloalkanes

Section: Chapter Questions

Problem 17E: Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of...

See similar textbooks

Similar questions

1. Consider the following eqm: SO2(g) + NO2(g) ⇌ NO(g) + SO3(g)What effect will adding SO3 have on the rxn?What effect will removing NO2 have on the rxn? 2. Consider the following exothermic rxn at eqm: C3H8(g) + 5O2(g) ⇌ 4H2O(l) + 3CO2(g)What effect will increasing the temperature have on the rxn?What effect will increasing the pressure have on the rxn?
Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of methylcyclohexane in the chair conformation: a. When the methyl group is in an axial or equatorial (circle one) position, the molecule is inits lowest potential energy conformation. b. Label one Newman projection above anti and the other gauche to describe the relationshipbetween the methyl group and C3 of the ring. c. In general, which is a lower PE conformation, anti or gauche? d. Explain how your answer to b and c provide an explanation for why it is more favorable fora large group to be in an equatorial than an axial position.
Consider 1-bromopropane, CH3CH2CH2Br. (a) Draw a Newman projection for the conformation in which CH3 and -Br are anti (dihedral angle 180°). (b) Draw Newman projections for the conformations in which - CH3 and -Br are gauche (dihedral angles 60° and 300°). (c) Which of these is the lowest energy conformation? (d) Which of these conformations, if any, are related by reflection?
1.What is the absolute configuration of this isomer of 2,3-dihydroxybutanal? pls explain.2. What is the absolute configuration of the enantiomer of the isomer?
Why is this chair conformation the most stable trans-1-chloro-3-flurocyclohexane? Wouldn't the conformation with Cl & F in equatorial positions be the most stable conformation?
A)Circle all of the stereo centers in MDMA. B) assign the absolute stereochemistry (R or S) for each stereo center
Rank the following groups in order of decreasing priority. a.−F, −NH2, −CH3, −OH b.−CH3, −CH2CH3, −CH2CH2CH3, −(CH2)3CH3 c.−NH2, −CH2NH2, −CH3, −CH2NHCH3 d.−COOH, −CH2OH, −H, −CHO e.−Cl, −CH3, −SH, −OH f.−C≡CH, −CH(CH3)2, −CH2CH3, −CH=CH2
a) Sighting down the C3-C4 bond, draw the gauche (60 degrees) and anti (180 degrees) Newman projections of 2,4-dimethylhexane. b) Circle the conformation that you drew that is lower energy.
Square planar molecules with formula AB2C2 and octahedral molecules with formulas AB4C2 and AB3C3 feature diastereoisomers. Recall that trigonal bipyramidal geometry features two distinct positions: axial and equatorial. Draw all diastereoisomers for trigonal bipyramidal molecules with formula (a) AB4C and (b) AB3C2. You must indicate the stereochemistry using full and dashed wedges and label all positions as either axial (ax) and equatorial (eq)..
Complete the Newman projection below to draw the most stable conformation of 3-methylpentane, looking down the C2-C3 bond. Identify each substituent using "H" for hydrogen and "Me" for methyl. a= b= c= d=
Focus only on carbon 1 For carbon 1, which group has the highest priority? a,b,c or d?why? What enantiomer is carbon 1? R or S?
Copy the structure and mark all stereocenters in each molecule and tell how many stereoisomers are possible for each Letter d, e and f only.