Make a table of physical contants of R and S enantiomers of Limonene and Carvone include:...
Make a table of physical contents for S Limonene and R Carvone Include: structures, formula, molecular weight and specific rotations
Write bond line structures, with dashed and wedged lines, of (-)-carvone, (+)-carvone, (-)limonene and (+)-limonene. Assign the absolute configuration (R, S) of the chiral center in each compound.
1. Are the energies and dipole moments for the two enantiomers of Carvone the same or are they different? How about the two enantiomers of Limonene? 2. Which isomer of Carvone do you anticipate to have? Is it R or S? How do you know? What is the association between the chirality and the odor of the Carvone isomers?
A sample of limonene has a specific rotation of +71.3 R-(+)-limonene [dD = + 125.6" and, S-(-)-limonene [a]D--1 22. 1 ®. What is the % ee? Number %ee What is the molecular composition of this same sample? Number s isomer = 1 % 1Somer Number R isomer-
3.34 The specific rotation of (S)-carvone (at +20°C) is +61. A chemist prepared a mixture of (R)- OF (R)- carvone and its enantiomer, and this mixture had an observed rotation of -55°. (a) What is the specific rotation of (R)-carvone at 20°C? (b) Calculate the % ee of this mixture. (c) What percentage of the mixture is (S)-carvone?
After your procedure, draw all FOUR of the following structures in your pre-lab report. Make sure you clearly label the stereogenic center, the priority of each group around the stereogenic center, and then label the chiral centers with R or S. H Figure 2-3a. Enantiomers of Carvone CHy CHs HC CH HC Figure 2-3b. Enantiomers of Limonene
need help with 15-17
For Problems 15-17, consider (R)-carvone (below), -61. which has a specific rotation of [a] o CH3 (t 4)S H2C CH3 15. What is the % ee of a sample of carvone that exhibits a specific rotation of -40? (1 pt) 16. What is the specific rotation of a sample of carvone that contains a 50/50 mixture of the R and S enantiomers? (1 pt) 17. If a sample of carvone gives a specific rotation of +48,...
Like carvone, the two enantiomers of celery ketone smell differently. The R enantiomer smell like celery leaves, whereas the S enantiomer smells like licorice. Draw each enantiomer and assign its odor. celery ketone
2. Answer the questions below regarding (R)-Limonene (you will want to include this same info in your lab notebook) Molar Mass Density Color Odor Melting Point (°C) Boiling Point (°C) Specific rotation 3. Determine whether the enantiomer of Limonene drawn below is R/S (Review the Cahn-Ingold-Prelog rules for how to do this) 4. Give a measurement reading of the Vernier scale below (assume the unit is in degrees) 0 5 10 Page 1 of 2
8. What is the actual enantiomeric percent composition of a mixture of (S)-(+)- Carvone. [a]= + 15.5, and (R)-(-)-Carvone la] = - 15.5 with a specific rotation of la]= +4.9? a) 50-50% R and S b) 65.8% R and 34.2 % S c) 31.6% R and 68.4 % mixture d) 65.8% S and 34.2% R e) 31.6% S and 31.6 % R and 36.8% mixture 9. Which of the following statements is true? a) SN2 reactions of secondary alkyl halides...