The specific rotation of (-) isomer is -22˚, with concentration of 4.2 g/100 mL, and pathlength of 0.5 dm. The specific rotation of (+) isomer is +17.4˚, with concentration of 4.0 g/100 mL, and pathlength of 0.5 dm. 1. Calculate the observed rotation of the (+) and (-) methylbenzylamine isomers, and explain that the polarimeter calculates the specific rotation 2. calculate %ee (enantiomeric excess) (allows for further discussion; attention to be paid to the accepted optical rotation to ensure that it is in the same particular solvent system)

The specific rotation of (-) isomer is -22˚, with concentration of 4.2 g/100 mL, and pathlength of 0.5 dm. The specific rotation of (+) isomer is +17.4˚, with concentration of 4.0 g/100 mL, and pathlength of 0.5 dm. 1. Calculate the observed rotation of the (+) and (-) methylbenzylamine isomers, and explain that the polarimeter calculates the specific rotation 2. calculate %ee (enantiomeric excess) (allows for further discussion; attention to be paid to the accepted optical rotation to ensure that it is in the same particular solvent system)

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter3: Stereoisomerism And Chirality

Section3.7: Optical Activity—how Chirality Is Detected In The Laboratory

Problem 3.9P

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