Stereochemistry

Organic Chemistry, look back of Stereochemistry, Prof. Robert Batey, monkey 1 Chiral Compounds Stereogenic centres: we will be in particular concerned with stereogenic ampere-second atoms. Consider an sp3 hybridized carbon which has iv contrastive substituents on it. It is rotter exist in two contrary 3-dimensional arrangements that ar related to each other as non-superimposible reverberate images. These two distinct compounds ar said to be enantiomers, and are an example of stereoisomerism. c enantiomer 1 d C b a mirror To convince ourselves that they are therefore protestent, consider rotating enantiomer 2 about the axis of rotation a b C c Enantiomer 2 d axis b a C c d outflank by 180° d c C b a which we can redraw as: b d C c a b d C c a d c C b a Enantiomer 1 Enantiomer 2 notice how that although the dCa groups can be superimposed, this leaves the b and the c groups swapped snipe in the two enantiomers, i.e. they are different compounds Organic Chemistry, brushup of Stereochemistry, Prof. Robert Batey, Page 2 Drawing Chiral Compounds c d C b a is equivalent to b d C c a (since the wedged and hyphen bonds are perpendicular to the monotonic of the paper) To lay down a 3-D sense, recitation rotating molecules either around bonds or other axes.

For example, each of the following(a) structures are the aforesaid(prenominal) enantiomer, they just differ in their orientation on the scallywag (for each shout a rotation about a bond or axis has occurred). (The use of molecular(a) models is in particular cooperative !!!) c d C b c C d a b a b d C c a c b C d a a c C b d d c C c a C d b a b a b d c C a b b a C c d d b C c a d c C b d C c a Question: For each step, what was the axis of rotation, and the tumble and fashion (clockwise/counterclockwise) of the rotation? Organic Chemistry, Review of Stereochemistry, Prof. Robert Batey, Page 3 Cahn Ingold Prelog congregation ordinate groups on the stereogenic centre as 1 = highest, 2, 3, 4 (lowest, commonly H) using the following rules...If you trust to get a upright essay, order it on our website: Orderessay

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