2. Draw the structures of the cis-trans isomers for each compound. Label them cis and trans. If no cis-trans isomers exist, write none. a. 2,3-dimethyl-2-pentene b. 1,1-dimethyl-2-ethylcyclopropane c. 1,2-dimethylcyclohexane d. 5-methyl-2-hexene e. 1,2,3-trimethylcyclopropane
Label the compound as cis or trans. Be sure to answer all parts. For each compound shown below, draw representations for the cis and trans isomers using a hexagon for the six-membered ring, and wedges and dashes for substituents. [1] cis: draw structure ... trans: draw structure ... [2] cis: draw structure ... trans: draw structure ... 1 attempt left Check my work Select the single best answer. Label the compound as cis or trans. ints eBook нот HO cis...
1. Name the molecules shown below Br Br 2. Draw and label both the cis and trans forms of 1-isopropyl-2-methylcyclobutane.
draw the cis and trans isomers of 2-pntane and label them. b. draw trans -4,4 dimethyl-2-pentane c. draw cis -2- hexane
Name or draw the following molecules (use cis/trans naming system) 1. Name or draw the following molecules (use cis/trans naming system): CI CI CH3 CH2CH3 a. b. c. 4-ethyl-6-(1,2-dimethylpropyl)decane 2. Draw all of the resonance structures for the following compounds. CH2
Choose all of the molecules that can have both cis and trans configurations. I understand the cyclohexane does not fit the requirements, and neither does a molecule with a triple bond. But does the molecule with a ketone? I feel like A-C fit the requirements for having both cis and trans configurations. Choose one or more: ОА. H₂C сна B. C O C. OD I E. Học ==CH, OF.
7. Draw and label both cis and trans isomers of 1-ethyl-4-methylcyclohexane. (10 pt) a. For each isomer, draw the two possible chairs and indicate which of the two will be preferred and by how much (a lot or little). (5 pt) b. Which of the four is considered the most stable (label as "best") and which is least stable ("worst")? (3 pt) c. Clearly label 1,3-diaxial interactions, if present, in any of the conformations? (2 pt) Cis Trans
5. Name the following alkene molecules. Be sure to include cis/trans designations whenever necessary! CH3 CH3 Br CI
Molecules that differ in configuration CANNOT be: a. stereoisomers b. cis-trans isomers c. chiral centers that are mirror images of each other d. enantiomers e. chiral centers that can be interchanged by rotation of a single bond
Stereochemistry is the study of the three‐dimensional structure of molecules. The cis and trans isomers are forms of stereoisomers, differing structurally only in the location of the atoms of the molecule in three‐dimensional space. Such stereoisomers can have different physical and chemical properties. Stereochemistry is of particular interest to biochemists because the reactivity and toxicity of molecules change with their stereochemistry. Most body reactions are stereospecific, meaning that receptor sites on cells accept only molecules with specific spatial arrangements of...