Problems and exercisesStereochemistry of complex molecules

1. Completing projections

   Complete the following formulas:

   

2. Reduction of a diketone

   The ketone groups of 5-nitrononane-2,8-dione (figure) can be reduced to the alcohol (OH) function one at a time, giving a set of isomers of 8-hydroxy-5-nitrononan-2-one on the one hand and of 5-nitrononane-2,8-diol on the other. Write them all down and say how they are related to each other (enantiomers, diastereomers or meso forms).

   

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