Homework Answers
Yes, this is because there is a free radical reaction occuring at the chiral center, meaning that a planar intermediate forms meaning that by the end we get a 50/50 racemic mixture
Add Answer to:
Ch 10: Radical Reactions (5 of 24) Q10.5: If bromination happened exclusively at the tertiary carbon...
24. For the radical mono bromination reaction below, calculate the % of tertiary brominated product. Assume...
24. For the radical mono bromination reaction below, calculate the % of tertiary brominated product. Assume that the relative reactivity for 1°, 2 &3° hydrogens is 1: 2.0:6.0 25. Using the bond dissociation energies given at the end of the exam. calculate 솨1° for the following reaction. Is the reaction exothermic or endothermic? →化.. * CH3 26. Draw the Newman projection for the least stable conformer of 2-bromobutane viewed along the C1-C2 bond. Bonus Questions: 27. (a)Which is more acidie?...
Mechanisms Question 1 (22 marks) (a) Consider the radical chain reactions of the alkane shown below with Br, in the...
Mechanisms Question 1 (22 marks) (a) Consider the radical chain reactions of the alkane shown below with Br, in the presence of light. H3C HH H C-CCHS CH3 Br2 hv 2 Different mono- bromo products 25 °C + (you will need to look up the bond dissociation energy (BDE) for the types of bonds formed and broken in this reactions) (i) Give the structures of the products from the reaction and using standard arrow conventions show the series of mechanistic...
yea i need 4 5 anx 6 ough the following stepe 20 points) The bromination of...
yea
i need 4 5 anx 6
ough the following stepe 20 points) The bromination of methane proceeds through Br - 2Br CH. Br. CH: Br AN (per mole) E. per mole) 1100 (kral) 100 LJ (45 kcal) C'H + HBr + 73 kJ (17 kcal) 7911 . CH, Br + Br 112 kJ ( 27 kcal) 7 kcal)79 kJ (19 kcal) 27 kcal)4 kJ (1 kcal Draw a complete reaction-energy diagram for this rea b) Label the rate-limiting step....
pleas help 5,6,7,8,9,10 III IV 5. The product of free-radical halogenation reactions is an alkyl halide....
pleas help 5,6,7,8,9,10
III IV 5. The product of free-radical halogenation reactions is an alkyl halide. The major amount of this halide forms during the second step of propagation. However, you should be aware that one possible termination step also forms alkyl halides. Why does the majority of the alkyl halide product come from the propagation step and not the termination step? A. At any given time during the reaction, the concentration of both the alkyl radical and the halide...
Model 3: Reactions of Bromine Radical with Various Alkanes For each reaction below, the most likely products are sh...
Model 3: Reactions of Bromine Radical with Various Alkanes For each reaction below, the most likely products are shown. H H H H Rxn I : Br -H H H H H H H H Br H Rxn IV C- H H CHy сн, H,C нC Rxn V BrH н.с CH -сн Critical Thinking Questions 5. Label the carbon radicals in Model 3 as methyl. primary, secondary, tertiary, allyl or benzyl. a) Which carbon radical in Model 3 is closest...
the answers i circled are incorrect except for number 10. i know number 8 is d....
the answers i circled are incorrect except for number 10. i
know number 8 is d. for those two can you explain why the answer is
that? can you give me the correct answers and explain why?
ren with Down Syndrome waren with local deve we described as generat ) lam towan l and e ch rochemical court of Th correct configuration? is RS). Which offi ces corresponds OH OM HOCH,HOH I WHER TNH, CH, HO CH, w AT 111...
Need help with both 3 and 4 please 3. The reactions below refer to questions 5-7 and illustrate the reaction steps in t...
Need help with both 3 and 4 please
3. The reactions below refer to questions 5-7 and illustrate the reaction steps in the anti-Markovnikov addition of HBr to (E)-prop-1-en-1-ylbenzene. Draw curved arrows that account for electron movement in reactions below and classify each reaction according to 6 patterns of radical reactions. reaction pattern Br + Br T + H-Br: - T + :Br. 4. In step a), bromine radical preferentially attaches to carbon C-2 (bromination of C-1 and formation of...
questions 14,15,and16 please Model 8: Selectivity of the Photo-Halogenation Reaction Radical halogenation with Fis i olent...
questions 14,15,and16 please
Model 8: Selectivity of the Photo-Halogenation Reaction Radical halogenation with Fis i olent and dangerous limiting the usefulness of this reaction in organic synthesis Radical halogenation with lis so slow as to be useless in organic synthesis Radical halogenation with Br, is just right! It is very useful in organic synthesis. The rate is manageable and reactions with Bry are very selective. (A selective reaction gives close to 100% of a single product. An unselective reaction gives...
Step Question/Exam 3: Draw a radical mechanism for the following photohalogenation reaction Brg t th to...
Step Question/Exam 3: Draw a radical mechanism for the following photohalogenation reaction Brg t th to you ? + H-Br UV light (h) 90% UV-light and a halogen...these are great radical initiation conditions! 1.) Look for a weak bond that would be able to homolytically cleave to form two radicals Draw the resulting radicals: 2.) Identify the most stable site for a radical to sit. Your product distribution will predict where this is FYI. Again, the reactivity of radicals is...
1) Consider the free radical monochlorination of 3-methylpentane and answer the following: a) How...
1) Consider the free radical monochlorination of 3-methylpentane and answer the following: a) How many products (including stereoisomers) are formed? _______ b) How many are chiral? ________ c) Would the major product of free radical bromination possess a chiral carbon? Yes or No 2) Which of the following functional groups can be generated in one step via SN2 or SN1 reaction? (Enter all that apply) a) Aldehyde b) Alcohol c) Alkene d) Alkyne e) Amine f) Carboxylic Acid g) Ester...
24. For the radical mono bromination reaction below, calculate the % of tertiary brominated product. Assume that the relative reactivity for 1°, 2 &3° hydrogens is 1: 2.0:6.0 25. Using the bond dissociation energies given at the end of the exam. calculate 솨1° for the following reaction. Is the reaction exothermic or endothermic? →化.. * CH3 26. Draw the Newman projection for the least stable conformer of 2-bromobutane viewed along the C1-C2 bond. Bonus Questions: 27. (a)Which is more acidie?...
Mechanisms Question 1 (22 marks) (a) Consider the radical chain reactions of the alkane shown below with Br, in the presence of light. H3C HH H C-CCHS CH3 Br2 hv 2 Different mono- bromo products 25 °C + (you will need to look up the bond dissociation energy (BDE) for the types of bonds formed and broken in this reactions) (i) Give the structures of the products from the reaction and using standard arrow conventions show the series of mechanistic...
yea
i need 4 5 anx 6
ough the following stepe 20 points) The bromination of methane proceeds through Br - 2Br CH. Br. CH: Br AN (per mole) E. per mole) 1100 (kral) 100 LJ (45 kcal) C'H + HBr + 73 kJ (17 kcal) 7911 . CH, Br + Br 112 kJ ( 27 kcal) 7 kcal)79 kJ (19 kcal) 27 kcal)4 kJ (1 kcal Draw a complete reaction-energy diagram for this rea b) Label the rate-limiting step....
pleas help 5,6,7,8,9,10
III IV 5. The product of free-radical halogenation reactions is an alkyl halide. The major amount of this halide forms during the second step of propagation. However, you should be aware that one possible termination step also forms alkyl halides. Why does the majority of the alkyl halide product come from the propagation step and not the termination step? A. At any given time during the reaction, the concentration of both the alkyl radical and the halide...
Model 3: Reactions of Bromine Radical with Various Alkanes For each reaction below, the most likely products are shown. H H H H Rxn I : Br -H H H H H H H H Br H Rxn IV C- H H CHy сн, H,C нC Rxn V BrH н.с CH -сн Critical Thinking Questions 5. Label the carbon radicals in Model 3 as methyl. primary, secondary, tertiary, allyl or benzyl. a) Which carbon radical in Model 3 is closest...
the answers i circled are incorrect except for number 10. i
know number 8 is d. for those two can you explain why the answer is
that? can you give me the correct answers and explain why?
ren with Down Syndrome waren with local deve we described as generat ) lam towan l and e ch rochemical court of Th correct configuration? is RS). Which offi ces corresponds OH OM HOCH,HOH I WHER TNH, CH, HO CH, w AT 111...
Need help with both 3 and 4 please
3. The reactions below refer to questions 5-7 and illustrate the reaction steps in the anti-Markovnikov addition of HBr to (E)-prop-1-en-1-ylbenzene. Draw curved arrows that account for electron movement in reactions below and classify each reaction according to 6 patterns of radical reactions. reaction pattern Br + Br T + H-Br: - T + :Br. 4. In step a), bromine radical preferentially attaches to carbon C-2 (bromination of C-1 and formation of...
questions 14,15,and16 please
Model 8: Selectivity of the Photo-Halogenation Reaction Radical halogenation with Fis i olent and dangerous limiting the usefulness of this reaction in organic synthesis Radical halogenation with lis so slow as to be useless in organic synthesis Radical halogenation with Br, is just right! It is very useful in organic synthesis. The rate is manageable and reactions with Bry are very selective. (A selective reaction gives close to 100% of a single product. An unselective reaction gives...
Step Question/Exam 3: Draw a radical mechanism for the following photohalogenation reaction Brg t th to you ? + H-Br UV light (h) 90% UV-light and a halogen...these are great radical initiation conditions! 1.) Look for a weak bond that would be able to homolytically cleave to form two radicals Draw the resulting radicals: 2.) Identify the most stable site for a radical to sit. Your product distribution will predict where this is FYI. Again, the reactivity of radicals is...
Most questions answered within 3 hours.
-
we discussed a number of factors in the "General (remote)
Environment" that can affect the...
asked 10 minutes ago -
Using the IS-PC-MR model, describe how the economy responds to
an inflation shock in the following...
asked 11 minutes ago -
Ammonium nitrate has been used as a high explosive because it is
unstable and decomposes into...
asked 16 minutes ago -
How long would it take a car with a top speed of 203 mph to travel...
asked 14 minutes ago -
9) What are the two different ways in which a user can interact
(interface/work) with UNIX?...
asked 18 minutes ago -
Exercise 2.5. Use the Binomial Theorem to prove that, for all n
≥ 0 and for...
asked 35 minutes ago -
The teachers at Bryan ISD want to examine if a newly developed
intervention program for disadvantaged...
asked 40 minutes ago -
Describe the
characteristics of small business.
- Name the most
common causes of small business failure....
asked 43 minutes ago -
A pendulum is made up of a small sphere of mass 0.500 kg
attached to a...
asked 1 hour ago -
Given a pn junction with both thin p-type and n-type materials
such that Wn and Wp...
asked 1 hour ago -
it was discussed that animals should be treated the same as
humans, that pain is pain,...
asked 1 hour ago -
The vapor pressure of water at 20°C is 17.54 torr. Calculate the
vapor pressure (in torr)...
asked 1 hour ago