8. Label the following pairs of compounds as exactly the same, completely different, isomers, or resonance structures. CH3CH(CH3)CHCHCOOCH₂CH3 H x C(CH3)2CHNHCH3 (CH₂)2 CH₂ N työv
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- 8c) What is the relation between the following pairs H₂C O a. Cis-Trans O b. Structural O c. not isomers O d. Identical H3C CH3 H₂CH.Which of the following compounds has both geometrical (cis/trans) and optical isomers (mirror image to one and another)? O a. CH3CHCICH=CHCH3 CH2(OH)CH=CHCH3 C6H5CH=CHNH2 d. C2H5CH=CH2Chemistry II How many optical isomers, if any, are possible for the following compounds? 39. CHз —СН—CН—С ОН il Br CH3 O 40. СH—СН—CH -С ОН CH3 Br 41. CH—CH-—СН—СH—С 42. CH-CH2—СH -CH-CH} OH ОН ОН Он Br 43. CH3-CH -CH-С 44. C-CH2-CH CH-C CH3 NH2 CH3 OH
- CH3 H3C. 1. ČH3 3-isopropyl-5-methylcyclohexanol There are four cis,trans isomers for 3-isopropyl-5-methylcyclohexanol, where the cis,trans designations of the substituents are made relative to the OH group: • up, up, up (cis,cis) • up, up, down (cis,trans) down (trans.cis) • up, down, • up, down, up (trans,trans) Consider the most stable chair for each of these isonmers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one. • To simplify matters, consider only axial vs equatorial energies of the groups (i.e. do not worry about the interactions between the groups, which in reality is also • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • You do not have to explicitly draw H atoms. • Use "flat" representations of rings, not chairs, in your drawing. Most stable Least stableWhich of the following is the major product of the reaction shown below? NaSH DMSO = (CH3)2SO %3D Br DMSO9. Draw the formula structure for A to I. A CH3CH2OH / OH CH;CHO Ca(a) KCN CH3COOH F CH,CI CH,CH,OH/ H+ thionyl chloride, pyridine CH3ČNH2 D CH,MgBr
- 8. Draw a non-cyclic isomer of C3H6N2 in which the atom connectivity is N-C-C–C-N, and the middle C–C–C unit does NOT have a bond angle of 180°.Part A What is the relationship between the following molecules? CH,CH3 CH3 CH2 CHCH3 CH;CH2-CH- CH-CH,-CH-CH-CH3 CH3 CH,CH3 CH3 CHCH3 CH,CH3 CH;CH, CH-CH-CH,-CH–ĊH-CH,CH,CH3 CH3 CH3 O They are different molecules which are not isomers. O They are identical. O They are isomers of each other. O none of the above Submit Request AnswerSnO2 + H2 ? Sn + H2O '