es of each 1. 2 points Two molecules that have the same connectivity and Es that...
Free response 1. 2 points Two molecules that have the same connectivity and are non other are called 2. 4 points for the following molecule, label each stereocenter with configurational isomers. re nonsuperimposable mirror images of each tocenter with an asterisk (*), and then draw all possible
3. 4 points Which of the following alkenes is more stable? Explain. 4. 2 points A molecule has two rings, three double bonds, and two triple bonds. How many IHD units does this molecule have?
The following is a schematic diagram of the isomer explanation. Describe each term related to isomers. Do the compounds have the same molecular formulae ? NO Not isomers YES Isomers Do the compounds have the same connectivity? NO YES Constitutional Stereoisomers Can the compounds be interconverted by rotation about single bonds ? NO YES Configurational Conformational Is the isomerism at a double bond? YES NO HY пн . сн, ң,с сн. Geometric Optical Are the compounds non-superimposable mirror images? NO...
3. 14 points: Consider the two molecules below: Molecule A Molecule B CH(CH3)2 CH(CH3)2 1 CH I ICH₃ 27 [ 2 CH3 a. Molecules A and B both have three chiral carbons (labeled 1, 2, and 3). How many unique stereoisomers does 1-isopropyl-2,3-dimethylcyclohexane have? b. Molecules A and B are pairs. C. Determine the configuration (R or S) of chiral carbons 1, 2, and 3 for both molecules. Chiral Carbon Molecule A Molecule B d. Draw the two 'chair' conformers...
4. 2 points A molecule has two rings, three double bonds, and two triple bonds. How n does this molecule have?
7. (13 points) For the compound 1-tert-butyl-4-methylcyclohexane: a. Draw the two possible chair conformations for the cis isomer, Which conformation, if either, is more stable? Circle one b. Draw the two possible chair conformations for the cis isomer, Which conformation, if either, is more stable? Circle one trans: C. Between the two more stable isomers circled above, which is more stable? Why?
Chapter 11: 1. What is a prime rule in naming alkenes? a. Find the longest carbon chain. b.Find the longest carbon chain containing the alkene. c. Find whether the alkene has a cis- or trans- configuration. d.Find how far the alkene functionality is from either end. 2. What is the IUPAC name of the following alkene? a. cis-5-methyl-2-heptene b. trans-2-ethyl-4-hexene c. trans-5-methyl-2-heptene d. trans-3-methyl-5-heptene 3. What is the hybridization, geometry, and bond angle of the carbon marked by an asterisk?...
1. Draw the structures of: a) (Z) 2-iodo-3-methyl-2-heptene b) cis non-3-en-5 yne Give the IUPAC name of the following compounds, including steochemistry. a) F CH2CH2Br CH3CE 2. a) Draw the most stable chair conformation of cis 1,3-difluorocyclohexane. b) Draw a Newman projection of 2-iodo-3-methylpentane looking down the 3. Compound X has the formula CoHB2Br4. Compound X reacts with excess H2/Pd to give CATHa6Bra. How many does compound X have? Show how you got your answer. rings 4. For each pair...
1. How many degrees does the front carbon have to be rotated to result in an eclipsing a. 60 b. 90 d. 120 e. 300 109.5 2. Rank the conformers from highest to lowest in energy? a. B, C, D, E, A b. C, B, E, A, D c. B, C, E, A, D d. C, B, A, E, D B, C, A, E, D e. 3. Which is the correct IUPAC name for 4-amino-3-ethyl-7-methyloctane? a. 3-amino-4-ethyl-7-methyloctane d. 4N-amino-3-ethyl-7-methyloctane b....
1. Draw (1S,3S)-3-aminocyclohexanecarbonitrile structure below: 2. Draw the two chair conformations of the above disubstituted cyclohexane compound, before and after ring-flip. 3. Draw the Newman projections of both chair conformations about the C1−C6 and C3−C4 bonds. 4. Which conformation is the least stable one? Briefly explain your answer with words AND by showing it on the appropriate Newman projection.