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Solved in 2 steps with 1 images
- a. Fill in the boxes with the missing structures. Be aware of stereochemistry. 1. LDA H3CO₂C 2. J CN Br t-BuOK THF H3O A9.a. Circle all the appropriate terms. t-Bu The two molecules drawn above are enantiomers optically active enantiomers superimposable 9.b. Circle all the appropriate terms. diastereomers not optically active H optically active Bull.... H₂CH... Br -CH3 The two molecules drawn above are Me H diastereomers not optically active superimposable Me chiral meso not superimposable H3C- H ....... chiral meso H ...III\CH3 Br not superimposable Cl achiral -t-Bu identical achiral identical 3DO-, DO (excess) Pure Enantiomer Product(s)? b.) a) D3C. D3C. CD3 CD3 D3C. CD3 CD3 D CD3 CD3 CD3 CD3 CD3 Pure Enantiomer d.)
- Which of the following pairs of structures represent a pair of enantiomers? a. b. d. H₂C H NC H₂CH₂C Br HC. H₂N H.... CN COOH Br CH3 CH3 OH COOH H... Br H... HOOC H₂C CN OH HC₂ H₂C H₂N Br CH3 CN CH₂CH3 COOH CH[References] Draw a structural formula of the RS configuration of the compound shown below. OH CH2NH2 R S CN • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include H atoms at chiral centers only. • If a group is achiral, do not use wedged or hashed bonds on it. -81 / II... #[ ] درhelp me with part a and b please. for a please indicate stereochemistry, (R or S for every chiral center; trans or cis)
- Consider the stereochemistry of two molecules shown here. CH3 H3C-N A CH3 BE The configuration of the chirality center Ai✔ [ Select] S on the left has a total of [Select] R The configuration of the chirality center B is [Select] on the right has a total of [Select] The compound ✓. The compound chirality centers.2. Mark any chirality centers (asymmetric carbons) with a *. How many stereoisomers are possible? Br1. What is the relationship between the following two compounds? a.stereoisomersb.identicalc.constitutional isomers 2. Assign the absolute configuration of the chirality center as R or S.
- 5. Draw the structure of (S)-1-bromo-1-chloropropane. Take care to indicate the three- dimensional stereochemistry properly. 6. How many chiral centers does the following compound contain? CH3 7. Label each chiral carbon in the molecule below as having R or S configuration. HO₂C H F. H3C H CH₂CH3C. IDENTIFYING STEREOISOMERS: Label each pair of molecules below as enantiomers, diastereomers or identical CO₂H HO HC но-- н H -.Н CH3 OH CH₂OH HO™ H₂OC H₂C Н-- HO Н CH3 OHH CH₂OH HOC-... HOCH₂. H OH H OH HO H CHO COzH ОНС но с HO H COzH Н ОН НО Н CH₂OHWhich of the following pairs of structures represent a pair of enantiomers? a. b. C. d. O a O b Oc C Od H3C... H Br C HC NC H3CH₂C COOH H... C CN CH3 Br HC H₂N CH3 OH COOH CN HC-CH3 Br Br H.C. HOOC OH H... C H₂C CN H3C C H₂N CH₂CH3 COOH H