To answer questions 2, 3 and 6, optical rotation of (1R,2R)-(−)-1,2-Diaminocyclo

To answer questions 2, 3 and 6, optical rotation of (1R,2R)-(−)-1,2-Diaminocyclohexane[α]20/D −10.36°, c = 5To answer question 5, optical rotation of the synthesized diimine (Jacob’s ligand) [α]D20= – 315° (c=1, CH2Cl2).1)Draw the structure of 1R,2R)-(−)- 1,2-Diaminocyclohexane
2) Discuss the optical rotation value obtained for both racemic 1,2-diamino
cyclohexane and (1R,2R)-(−)- 1,2-Diaminocyclohexane.
3) Predict the optical rotation value of (1S,2S)-1,2- Diaminocyclohexane.
4) Are the melting points of racemic 1,2-diamino cyclohexane and (1R,2R)-(−)- 1,2-
Diaminocyclohexane the same ? Explain.
5) Define enantiomeric excess. Calculate it for the synthesized diimine (Jacob’s
ligand).
6) Was the resolution of racemic 1,2-Diaminocyclohexane successful? Explain.