Which of the following is the correct wedge and dash structure for the following Newman projection? (Me = methyl = CH3, Et =ethyl = - CH₂CH3) Ο Ο Ο Ο Ο 1 || ||| IV V H Me Me Et .Me H II IV
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- Which of the following Newman projections represents (2R,3R)-dibromobutane?Which Newman projection is the most stable conformed for (S)-4-chlorobutan-2-ol?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.
- Fill in the blanks: cis-1,3-Dimethylcyclohexane has two different chair conformations: one withboth methyl groups in __________ positions and one with both methyl groups in ____________ positions.Determine the configuration (E or Z) of each of the following alkenes..Draw a Newman projection, similar to Figure 3-25, down the C1¬C6 bond in the equatorial conformation of methylcyclohexane. Show that the equatorial methyl group is also anti to C5.
- Consider 1-bromopropane, CH3CH2CH2Br. (a) Which of these is the lowest energy conformation?Rank the following groups in order of decreasing priority. −H, −CH3, −Cl, −CH2ClPlease draw the line structures for the C8H17+ carbocations that have the carbon skeleton below And please circle the most stable carbocation
- Which is the most stable stereoisomer and configuration of 1-chloro-4-methylcyclohexane between the cis and trans configurations? Please explain. Provide chair structures + show all H for cis- and trans-1-chloro-4-methylcyclohexane, and use arrows to show where steric strain occurs.What is the value in kJ/mol, of the lowest energy trnasition above? a.) 545 b.) 444 c.) 320 d.) 266wat is degree unsaturation ? & draw 2 structures per number that meet the following