32. A
Thiol are Compounds having functional group -SH
33. A
Staggered confirmation are those in which groups are farthest.
Choose the compound that is a thiol. 1 2 3 4 Which of the following is...
3. 1) Draw the Newman projection of the following compound, looking down the indicated bond. (2) Label this Newman projections as a staggered or eclijpsed conformation. (3) Rotate this Newman projection to draw the Newman projection of the most stable conformation of this compound. (3) Label this Newman projections as a staggered or eclipsed conformation. (4) Re-draw this most stable conformation in a wedge-dash form as the original compound below is shown). a. он в н b. Cl
3. 1)...
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pe 4 16) Which of the following is the staggered conformation for rotation about the C1-C2 bond in the following structure? Ca-c rtely loocig eciear CH CH,CHCH CH 1 234 L ст, свсн, гV. H 3 H H H IL Ci CHCH V. CHe CH,T CHh 17) Draw the Newman projection that represcnts the most stable conformation of 3,3-dimethylhexane viewed along the C3-C4 bond. 18) Draw the Newman projection that represents the least stable conformation of 3,3-dimethylhexane viewed...
What is the IUPAC name of the compound shown below? cis-1, 3-dimethylcyclohexane trans-1, 3-dimethylcyclohexane cis-1, 4-dimethylcyclohexane tram-1, 5 -dimethyIcyclohexane Cyclohexane adopts the chair conformation rather than a planar structure because torsional strain is minimized. the C-C-C bond angles are close to 109.5degree. there are no 1, 3-diaxial interactions in a planar structure. only I only II I and II I, II, and III
1) Which is the least acidic hydrogen in the compound shown?
2) Which is the most acidic hydrogen in the compound shown?
1) Which is the least acidic hydrogen in the compound shown? IV I a) I b) II c)III d) IV e) v 2) Which is the most acidic hydrogen in the compound shown? IV a) l b) ll c) III d) IV e) V
29) What is the common name of the following alkyl group? T A) tert-Butyl B) sec-Butyl C) Isopropyl D) Isobutyl 30) Rank the following alkanes in order of decreasing boiling point, putting the alkane with the highest boiling point first. A) II > III >I C D B) I > III >II ) IIT >II> I ) I>II> III 31) - 31) Which of the following statements about the conformations of acyclic alkanes is true? A) A staggered conformation with...
4. Answer the following questions regarding the compounds given below: CH,OH HOM н -он сон CI (11) (iv) Hm. a) Give a systematic name for compounds III and IV (6 points) b) Draw a newman projection of a staggered conformation for compound III, viewed down the C2- bond. (2 points)
OCH3 3. Indicate the electrophilic or nucleophilic centers for the following compounds: a) b) d) 4. Answer the following questions regarding 2,3-dimethylbutane: a) draw any staggered Newman projection of this compound looking down the C2-C3 bond. b) draw the highest energy conformation (as a Newman projection). Label each example of steric and/or torsional strain. c) draw the lowest energy conformation. Identify any sources of steric or torsional strain if present. m md iminetahm 5 Draw tra possiblechair conformatex For Jbrom-s-7ethiTmethychayo...
4. Which compound would give the following IR spectrum? TIRNSMITTANCES ОН ОН If unw ОН D 5. Which compounds contain stereocenter(s)? OH NII a) I, III, and V b) I, II, and V c) II, III and IV d) II, IV, and V
QUESTION 43 Which of the following is most stable? 11 III IV 0 0 0 0 ON LECTION 44 QUESTION 44 What is the most likely product of the reaction below? 1. LDA i 2. 3. H2O II HO IV QUESTION 45 Which reactant, reagent and conditions will give the best yield of (R)-butan-2-ol? (S)-butan-2-ol with NaOCH3 CH3OH (5)-butan-2-ol with 1) TSCI, pyridine followed by 2) NaOCH3 CH3OH (S)-butan-2-ol with 1) Nah followed by 2) CH3Br (R)-butan-2-ol with 1) TsCl,...
Which carbon-carbon bond in the following compound would you expect to be shortest? I II III IV V