Explain why, in the base-catalyzed halogenation of acetone, the second and third halogenations occur on the same carbon as the first, and not on the carbon of the other methyl group.Please explain briefly.
Explain why, in the base-catalyzed halogenation of acetone, the second and third halogenations occur on the...
Shown below is an acid-catalyzed halogenation of a ketone. What would be the first step in the mechanism? Enolate attacks the halogen Base deprotonates the alpha-carbon Nucleophile attacks carbonyl carbon Protonate the carbonyl oxygen
Should a halogenation reaction be overall first or second order kinetics? Also, Explain why it gives anti addition rather than syn.
Carboxylic acid esters can undergo acid catalyzed hydrolysis, neutral hydrolysis and base catalyzed hydrolysis. Below is a table with three structurally related carboxylic acid esters and the second order reaction rate constants for the acid-catalyzed mechanism (k_A) and the rate constant for the base-catalyzed mechanism (k_B). The difference between the three compounds is mainly the substitution of hydrogen atoms on R_1 with the more electronegative chlorine atoms. a) Explain why there is only a small change in k_A for the...
Explain why for condensation reactions occurring at the α-carbon you often use a weak base (like -OH) to create the enolate when for reactions such as halogenation you would use a strong base (like LDA). Under what conditions (give an example) could you use LDA for a condensation reaction? Explain as in-depth as possible and I will give you a thumbs up! Thanks :)
use related rates. 1. One runner stands at first base and another on second base in a baseball game. At the moment a ball is hit, the runner at first base runs to second base at a speed of 18 ft/s. Simultaneously, the runner on second runs to third base at 20 ft/s. The paths between home plate, first base, second base, and third base create a square with a side length of 90 ft. a. (1 pt) How far...
7). a). Is the acetone molecule non-polar or polar? Circle. Non-polar Polar b). Sketch pictures of the intermolecular forces that would occur between the molecules of acetone and the molecules of 2- propanone if you have a mixture of the two liquids. What would be the main type of IMF that is responsible for the attraction? (Give a name for the IMF). c). The pentane molecule and the 2-pentanone molecule both have five carbon atoms on their structures. Why 2-pentanone...
6. Usina resonance structures, explain why acetaldenyde has a pka of 17, while acetone of 19. 7. Using resonance structures, explain why methyl acetate (pka 25) is less acidic than acetone (pka 19). 8. Rank the following in order from least to most acidic. Explain your ranking, using resonance structures with your explanation. & la
Unit 3 Homework Assignment Name 1. The first two steps in the base-catalyzed condensation of acetaldehyde would be described as: a. attack of Off on the carbonyl carbon atom, then loss of water b. attack of OH on the carbonyl carbon atom, then the resultant anion attacks the carbon atom on a second molecule of acetaldehyde. carbonyl bstracts an alpha-hydrogen atom, then the resultant anion attacks the carbonyl carbon atom on a second molecule of acetaldehyde. d. Oir abstracts the...
A baseball diamond is a square 90 ft on a side. A player runs from first base tosecond base at 15 ft/sec. At what rate is the player's distance from third basedecreasing when she is half way from first to second base?
why does attack occur on this carbon in the first step? please explain in terms of electronegativity and functional groups attached. NO2 NO2 NO2 SG SG N' GSH 'N' CH3 CHs CHs HN