14. (12 pts) Show the mechanistic steps leading to the products below. 8-8 8 H2O +...
15. (6 pts) Electrophilic addition to alkenes. A) Show the mechanism for the reaction below. CH3 CH3 H3C-CCH2-CH3 H3C-C CH-CHa+ HC CI B) Why does the Cl attach only to one of the two carbons in the C-C bond? (What is the reason behind the observed regiochemistry?)
14. (12 pts) Show the mechanistic steps leading to the products below. F + H20 + HF OH H:C
please be clear in drawings to show where areas are coming from and
what theyre pointing to
[Review Topical [References] Electrophilic addition of bromine, Bry, to alkenes yields a 1,2-dibromoalkane. The reaction proceeds through a cyclic intermediate known as a bromonium ion. The reaction occurs in an anhydrous solvent such as CH CI, In the second step of the reaction, bromide is the nucleophile and attacks at one of the carbons of the bromonium ion to yield the product. Due...
8. What is the major product of the following reaction? Cн, CH Cl (solvent) C сн, a сн, CH CH H OH H OH OH 9. What is the degree of unsaturation of C10H12N203? a 4 b.5 c. 6 d.7 10. Which of the following statement about using curved arrows in polar reaction mechanism is true? a. The nucleophile can be either negatively charged or positively charged. b. The electrophile must be neutral. c. Electrons move from a nucleophilic source...
сн, Нас 12-addition products (direct addition) CH2 CH3 Н,с Н-с CH CI HCI CH2 Cн Н.с 1,4-addition products (conjugate addition) Cн CH3 Нас Н.С CI Electrophilic addition to an alkene proceeds via Markovnikov regiochemistry due to the formation of the more stable carbocation intermediate. In the case of conjugated dienes, that is dienes that are separated by one sigma bond, the carbocation that is formed is stabilized additionally by resonance. Addition of the nucleophile to the carbocation intermediate can therefore...
12. Which of the following represents an addition reaction? d. more than one response is correct 13. Select the major product that would result from the reaction below. SO4 For 2 pts give the complete IUPAC name of the product: a. CH CH(OH)CHs Select the major product that would result from the reaction below c. CH,CH-CHs d. CH CH CH SO 14. CH CH CH-CH2 HBr For 2 pts give the complete IUPAC name of the product: d. CH,CH2CH CH2Br...
please answer questions 9-12
Question 9 1 pts Which of the following statements describes the reactivity of alkynes? An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. When a symmetrical internal alkyne reacts with HBr, two products are formed. Unlike alkenes, alkynes fail to undergo electrophilic addition reactions The o bonds of alkynes are greater in energy than the rt bonds and, therefore, are more reactive Alkynes react as electrophiles, whereas alkenes react as nucleophiles What is...
8. What sequence of reactions would lead to the product outcome shown below? (10 pts) HC= CH - HC H -CH2-CH 9. Give the mechanism for the following reactions: (10 pts) Học-c=c-CH, tava
How to properly solve these elimination and addition
reactions
Elimination and Addition reactions Purpose: Figuring out the ways that molecules react is the province of the mechanistic chemist. By understanding the mechanisms of reactions, the chemist can manipulate the experimental variables to favor one product over another. This element of control is the province of the synthetic organic chemist. This Workshop continues to explore how we know how molecules react and how this knowledge leads to control of the products....
(18 pts) 4. Predict two elimination products (A and B) for the reaction shown below. Show the mechanism (electron pushing) for the formation of each of your products. What alkene would be the major? Why? catalytic OH HASO beat Which alkene is major? Why? How many "C NMR signals would be observed for A: How many "C NMR signals would be observed for B: