Interpretation:
The Fischer projection formula of the compound represented by the model is to be drawn and the configuration as R or S is to be assigned to the chirality center.
Concept introduction:
In Fischer projection formula, a tetrahedral carbon is represented by two crossed lines. The horizontal line represents bonds coming out of the page and vertical lines represent bonds moving in to the page.
For assigning R or S configuration, the four groups attached to the chiral center are arranged in the order of priority by applying sequence rules. The molecule is then oriented in such a way that the group of lowest priority points away from the viewer. If the arrangement of highest priority to second highest priority to third highest priority is clockwise then R configuration is assigned. If the arrangement of highest priority to second highest priority to third highest priority is counterclockwise then S configuration is assigned.
To draw:
The Fischer projection formula of the compound represented by the model and to assign the configuration as R or S to the chirality center.
Want to see the full answer?
Check out a sample textbook solutionChapter 25 Solutions
Organic Chemistry
- Determine which one of the labeled atoms is a chiral center. If there is no chiral center, answer "none". CH3 d Но a b C. CH2 H3C H How many stereoisomers do you expect ?arrow_forwardAssign the absolute configuration of the chirality center as R or S. CH2 HC "CH,Br C(CH3)3 F3C° R Osarrow_forwardThe structure of an enzyme inhibitor is given. Identify the chirality center(s) in the structure. N NH F\ 0= Identify the chirality center(s).arrow_forward
- Identify the configuration of each chiral center in the following compound Chiral center locations: Configuration(s):arrow_forwardIdentify the absolute configuration of the chirality centers in each of the following compounds as R or S. Note: if multiple chirality centers are present, indicate the stereochemical designations as: RR, SS, RS, or SR. (Other terms used for chirality center include chiral center, stereocenter, and stereogenic center.) CI SS v CO,H H2Narrow_forwardIdentify the configuration of the chiral centre in this ring: (R) or (S). TI S There is no chiral centre. Rarrow_forward
- Assign R or S configuration to each chirality center in thefollowing molecules, Identify which pairs are enantiomers ordiastereomersarrow_forward5. Assign R or S configuration to each chirality center in the following molecules: CH3 CH3 Br (a) Br (b) (c) HaCH3 HaBr H OH CH3 H3C H OH H CH3 OH Which of these compounds are enantiomers, and which are diastereomers?arrow_forwardIdentify the absolute configuration of the centers of chirality in each of the following compounds as R or S. If two centers of chirality are present, indicate the configurations as: RR, SS, RS, or SR. S S HO! OH |arrow_forward
- us How many chirality centers are present in the following molecule. Use numbers between 0 and 20 in the space provided. HO COOH prostacyclin OHarrow_forwardDetermine which one of the labeled atoms is a chiral center. If there is no chiral center, answer "none". d H3C b СООН CH-CH a H3C NH2 How many stereoisomers do you expect ?arrow_forwardA Fischer projection of a molecule with one chiral center represented by a dot is shown below. Determine the R- or S-designation of this chiral center. A) R B) S C) no chiral centerarrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning