Which of the following is more stable and why?
WHICH OF THE FOLLOWING PAIRS IS MORE STABLE? hs NaOH dissolved in acetone NaOH dissolved in CH3OH H2CH3 CH3CH2 CH3CH CI CH ČH2CH3 the conjugate base of an alcohol the conjugate base of a carboxylic acid
3. For the following molecules, which is the more stable structural isomer and why?
which are more stable? CH3 Cite CH3 CH Conformation 2 for isomer A (A2) Conformation 1 for isomer A (A1) Question 3: Which conformation is more stable for isomer A? Why? 3. Draw two different chair conformations for model isomer B CAB CH3 CAB Chs Conformation 2 for isomer B (B2) Conformation 1 for isomer B (B1) Question 4: Which conformation is more stable for isomer B? Why?
26. Which of the following alkenes is more stable? Ans: 29. Show the mechanism for the following elimination, assuming that it is a concerted reaction. Өоме - Br Ans: 33. Which of the following is the most reactive in an E2 reaction? Ans: 36. Draw the major product of the following elimination. CI Ans: 39. What is the product of the following elimination? CI Ооме Ans: o o w obwoll
1. Draw the different conformations of cyclohexane and indicate which conformer is more stable and explain the reason why it is more stable. 2. Draw the saddle conformation of cyclohexane and indicate the axial and equatorial positions of the hydrogen atoms. 3. Identify the chiral carbon with an asterisk in the following molecule. Say how many stereoisomers you can have. CH3CH(OH)CH(Br)CH3
1. (3) Which of the following resonance structures is more stable? Why? Show lone pair(s) on the oxygen and complete electron movements
Predict which of these two compounds will undergo the El reaction faster and why Cl CH,CI 2 10. Explain why the nucleophile's strength is unimportant for an Syl reaction.
Which of the following compounds is more stable? or A B A They have same stability B Onto which of the numbered atoms in this structure can the negative charge be moved by resonance delocalization? 8 4 5 3 7 HC 2 co 1 2, 4, 6 only 1, 3, 5, 8 only 1, 3, 5 only 2, 4, 6, 7 only Which Newman projection represents the most stable conformation of the following compound when viewed down the 2-3 carbon-carbon...
In each of the following ion pairs, determine which ion is more stable. Use resonance structures to justify your answers. C) Etz-CH2 CH-CEN i
ch 22 Draw the most stable resonance form for the intermediate in the following electrophilic substitution reaction. In progress OCH OCH3 CH3CI / AICI: HC • You do not have to consider stereochemistry • Include all valence lone pairs in your answer . In cases where there is more than one answer, just draw one С P he (1 (Review Topics (References Draw the most stable resonance form for the intermediate in the following electrophilic substitution reaction. CHE -CH₂ CH,CI...