Solution :-
Q1) The structure in which the C=C are rpesent can considered as stereocenters also the chiral centers are also considred as stereocenters but not all stereocenters are chiral centers
Threfore in the first structure 4 chiral centeres are present which are also considred as stereomeceters therefore it has 4 chiral and 4 stereocenters
in the second structure 2 chiral centeres are present which are also considred as stereomeceters therefore it has 2 chiral and 2 stereocenters
Q2) To assign the configurations of the chiral carbons we provide the priority numbers to the groups attached to the chiral center based on the atomic numbers and then determine the direaction of arrow moving through the priority numbers originating from 1 and goin to 3. considering the 4th priority group is below the plane then if the direction is clockwise then its R configuration and if the direction is counter clockwise then its S configuration if the 4th priority number is not below the plane then the configuration is inverted.
Given structures differ in the configuration of the chiral centers and they are also not the mirror images of each other therefore they are diastereomers.
Q3) The carbocations which are in conjugation with the double bonds can rearrange by the resonance effect. The structure which can resonate are shown in the green boxes
For the first part I got 1 and 0 chiral centers, but do not know how...
1. Construct a model of the 2,3-dibromopentane isomer and label the chiral centers as R or S. Then make a model of its mirror image and draw it below, again labeling the chiral centers as R or S. a. Convert both models to their most stable conformation and draw their Newman projections looking down the center bond. b. On one model interchange the H and Br on one of the chiral centers. How is this molecule related to the other...
Could you please show me where the stereo centers are? I know there are three 46. (3 pts) How many stereocenters (chiral carbons) are in the following moleculo? O One (1) Two (2) Three (3)
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...
3.14 Which compounds contain chiral centers? (a) 2-Chloropentane (b) 3-Chloropentane (c) 3-Chloro-1-pentene (d) 1,2-Dichloropropane 3.18 Mark each chiral center in the following molecules with an asterisk. How many stereo isomers are possible for each molecule? CH COOH CH 0 (a) CH CCH=CH, (b) HCOH (c) CH,CHCHCOOH (d) CH,CCH.CH OH CH NH CH,OH OH CH,COOH (e) HCOH () CHCH.CHCHECH, (g) HOCCOOH CH,OH CH,COOH
please help with this page! CHEM211-Summer 2019 Stereochemistry Part 2) Homework 4 1) What type of isomers are CH3CH2OCH3 and CH3CH CH2OH? constitutional B) symmetrical conformational C) configurational E) stereochemical CH сн What is the relationship between the following compounds? 2) HCCI and H CHCI CH constitutional isomers diastercomers superimposable without bond rotation B) enantiomers D) conformational isomers A) C) E) 3) What is the relationship between the structures shown below? diastercoma constitutional isomers conformational isomers sonfigurational isomers enantiomers A)...
Question 6 0/1 pts How many chiral centers does molecule D has?
Consider the molecule shown below. ch_2ohchohchohch_3, Indicate chiral centers and predict the total number of stereoisomers. Draw them out in the Fischer projection. Build a model of one of them (orient it in the Fischer projection) so you can visualize the shape and how the chain curves. Sketch it to the best of your ability. Which of the molecules are enantiomers of each other? Are there any meso compounds? Justify your answers and draw them out. Take a pair of...
hi guys! i need help figuring out R vs S on this cholesterol molecule chiral centers. please also explain the numbering on each one, like how H is always the last one to figure out the direction. see the right side of the paper. thank you! R vs. S 1170 HO
I got question #27 wrong. Can you please explain. e correct answer: (only one) many chiral carbon atoms are in the following molecule (A) 3 B) 4 (C)3 2 (E) 21. How many chiral carbon atoms are in the following malceale? (A) 5 (B) 4 (C) 3 (D) 2 ) 007- O HOM han 22. How many chiral carbon atoms are in the following molecule (A) 5 (B) 4 (C)3 (D) 2 23. Ilow many chiral carbon atoms are in...
21:18 X Question H6.30 Level 1 Unanswered How many stereogenic (chiral) centers are found in the following molecule? A В с 1 E 5 он Unanswered Submit LO 21:18 X Question H6.20 Level 2 Unanswered Considering the following compounds, which of the following mixtures are optically active? A A only B Donly An equal mixture of B and E An equal mixture of C and E An equal mixture of A and D E D Unanswered Submit 21:18 Question H6.1...