First we should give priority of groups (a/c to CIP rules) then if priority order is clock wise direction then it is R cinfconfigura and if it is anticlockwise direction then it is S configuration.
Assigning of priority of groups :atomoa number >molar mass of atom or group.
Then R, S configuration will assign at only chiral (carbonhasc
four different atoms or groups) carbons only. hence the answers
2) Indicate whether the following molecules have R or S stereochemistry or are achiral. (10 pts)...
6.(14 pts) Assign the stereochemistry of the molecules shown below as R or S. Clearly indicate the priority of each substituent. CH3 CI (b) (a)
PROBLEMS 6.1 a (d) State whether each of the following molecules is achiral or chiral (a) (b) () H-C-BrH -C-Br CI C H.C-N-CH.CH, C- CH,CH.CH CH
12. (5 pts) Nomenclature: Provide the systematic IUPAC name for each of the following molecules. Indicate stereochemistry if applicable (R,S). CI
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Indicate whether the following molecule is chiral or achiral. chiral achiral cannot be determined
Assign R or S stereochemistry to the chirality centers in these Newman structures. Determine if these molecules are chiral. achiral. or meso compound
6. For each of the molecules below (A-D), determine whether the molecule is chiral, achiral, meso, or none. Be as specific as possible. (4 pts) CH3 CH3 CH3 CH2CH3 Bry CH₃ наслесна | HCBr CH2CH3 CH3 CH3 AB H3 CH3 HO CHARY 7. Consider isomers that contain a cyclopropane ring and have the molecular formula C5H10. (10 pts) a. Draw three (3) structures that would be included in this class of isomers and are achiral. Note: points will be deducted...
Indicate whether each of the following molecules R, S, Z or E. Label the substituents according to priority. The third molecule is a Fischer projection. Cl H2C SH H CH3 CH3 Label each pair of molecules as enantiomers, diasteromers, identical molecules constitutional isomers, or not isomers at all. No partial credit. H3C SH CH3 CH(CH3)2 H3C CH2CH2F CH(CH3)2 H3C CH2CH3 and H CH3 and H SH Cl HOH OH and CH3
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Organic Chemistry I Test 2 Extra Stereochemistry Practice Problems Page 1: Designate R/S Page 2: Chiral or Achiral? Page 3: Same, Enantiomer, or Diastereomer? A. Designate the R/S configuration for any chiral centers in the following molecules. 44 Br R 'Br, H 7 R THAN HAS R 2. -.. - H. Brs OH S HOH OH 2.13 o Hona H OH Hon hon нсна H CHE но не о носон 11.00 14. HO I NH₂ H CHE 17. Hoco...
2. Mark all stereocenters with an asterisk (*) and assign the configuration (R or S) for each. Also write whether the molecule is chiral, achiral, or meso (3 pts each) H CH2OH b. c. tch Br Сн, 3. Name the following compounds (2 pts each) Br b.
(10 pts) Predict the major product (including stereochemistry if important) of each of these elimination reactions. Indicate whether E1 or E2. 4. H2о 95°C КОН Br 85°C Br