Chiral molecule is defined as the compound which contains carbon atom which is attached to four different substituents.
Determine whether or not the following molecules are chiral: Part A CH3CH2CHCOCH3 . Part B CH3CCI,CH:...
Determine whether or not the following molecules are chiral: a) CH3CH2CHClCH3 b) CH3CCl2CH3 Part C NH3 Br Part D CH3 CHO CH3-C-0-OH CH CH2
3. For each of the following chiral molecules, indicate whether the enantiomer shown is the Ror Senantiomer. CH3 CH2-CHE чон NH, OH CH=CH2 4. A liquid mixture is comprised of a 50:50 mixture of the following two compounds. Which of the following statements is true? (Choose one) CH3 A) The liquid is a racemate. B) The liquid is a mixture of two constitutional isomers. C) The liquid is a mixture of two unrelated compounds. D) The compounds are identical; it...
12.32 Identify each dentify each of the following structures as chiral or achiral. If chiral, indicate the chiral carbon. DE COCINA 12.37 I a. CH2-C 2. CH3 -C-CH2CH=CH3 100CH, D Br SSL b. CH3-C=CH-CH3 St OH OH bon d oc. CH3-C-CH-CH3 Listen Clone d. Br-CH-CH-CH3
1 Determine the R/S orientation of the indicated chiral center(s) in the following molecules. If there is only one chiral center in the molecule, choose (none). H3C CH3 a Visited b H H3C Molecule #1 (B-thujene ): Center a: Center b: CH3 CH2 HO CH3 Molecule #2 ( rhodinol): Center a: Center b: CH3 OH CH, H3C CH3 H H H H CHE H H HO H CH3 H HO H 2-butanol OH CH3 CH a H b с The...
4. Put an asterisk (*) next to each chiral center in the structure of erythronolide B, a metabone precursor to the commercial antibiotic, erythromycin. H3C .CH OH CH3 нс, Toi Erythronolide R Нас Анас OH 5. Determine whether the chirality centers in the following molecules have Rors configuration. (a) H (b) OCH2CH3 (c) OH NO-C-OH HC-CH3 H₃C-C-CH₂OH (a) HOH (b) c) HOCHZ HOCH2 CO2H 6. Are the following molecules chiral or achiral? If they are chiral, put an asterisk next...
B. STEREOISOMERS Star the chiral carbon in each of the following molecules. Then indicate how many forms exist for those compounds with at least one chiral carbon. OH OH OH OH O CH3 a) b) HOC2- CH-CH-CH-CH-CH CH3-CHCH2OH OH c) CHCH3 d) CH3CCH2CH3
3. Assign Rors configuration to the following molecules: - Br Br F Br -CH CH.CH H CH2CHE CH2CH CH, CH -CH, OH H -CH=CH2 H3C 7 Сн, HI CH(CH3)2 4. Label each pair of stereoisomers below as A,B,C,D a. Enantiomers b. Diastereomers c. Identical d. Meso Compounds u 5. Write the complete stepwise mechanism for this reaction. Show all electron flow with arrows and show all intermediate structures. (10 Points) BE CHO -Br (or CI) Br
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
3. Assign Ror S configuration to the following molecules: Br 1 F H- F H F Br Br -CHO CH=CH2 S R R H CH2CH3 CH2CH3 --CH₃ CH3 CH2 H -CH=CH2 CH3 H3C HY -CH(CH3)2 OH
help 7. Which of the following molecules are chiral? If they are chiral, draw a circle around each chiral carbon atom. There may be more than one chiral carbon atom in a molecule. H. CH₃ CH3 H-C-CH2CH2CCH2CH2CH2Br CH2CH3 C- Br F Br C-C-C-CI i H CICI Η Br -H H-cuc-c Br c- c c F-C-H BH CH₃ H-C-CH2CH2F CHE