1. Draw four possible conformations of acetylcholine and label the most stable and the least stable conformations. 2. Su

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1 Draw Four Possible Conformations Of Acetylcholine And Label The Most Stable And The Least Stable Conformations 2 Su 1 (153.96 KiB) Viewed 20 times

1. Draw four possible conformations of acetylcholine and label the most stable and the least stable conformations. 2. Succinylcholine (Anectine) is a neuromuscular blocking agent. Sighting C2-C3 bond of succinylcholine draw the most stable and the least stable conformations of succinylcholine. N*(CH₂), Cr N*(CH₂),CI Succinylcholine (Anectine) 3. Sight along the C2-C3 bond of 2,3-dimethylbutane, and draw a Newman projection of the most stable conformation. 4. The barrier to rotation about the C-C bond in bromoethane is 15 kJ/mol (3.6 kcal/mol). (a) What energy value can you assign to a H-Br eclipsing interaction? (b) Construct a quantitative diagram of potential energy versus amount of bond rotation for bromoethane. 5. Each hydrogen-hydrogen eclipsing interaction in ethane costs about 4.0 kJ/mol. How many such interactions are present in cyclopropane? What fraction of the overall 115 kj/mol (27.5 kcal/mol) strain energy of cyclopropane is due to torsional strain? 6. Draw two different chair conformations of cyclohexanol, showing all hydrogen atoms. Identify each position as axial or equatorial. 7. Glucose exists in two forms having a 36:64 ratio at equilibrium. Draw a skeletal structure of each, describe the difference between them and tell which of the two you think is more stable. 8. Why is a cis-1, 3-disubstituted cyclohexane more stable than its trans isomer?