(c) The E2 elimination of bromoalkane 8 produces a range of alkenes as shown below, answer ALL parts (i) to (iii) Br 8 Ph NaOMe Ph 9 + FOUR more alkenes (i) Identify the structure of the four other possible alkene products. (ii) Assign the stereochemistry (E/Z) for all FIVE alkenes and explain which is likely to be the major product. (iii) With an explanation identify which stereoisomer of 8 would give alkene 9?

(c) The E2 elimination of bromoalkane 8 produces a range of alkenes as shown below, answer ALL parts (i) to (iii) Br 8 Ph NaOMe Ph 9 + FOUR more alkenes (i) Identify the structure of the four other possible alkene products. (ii) Assign the stereochemistry (E/Z) for all FIVE alkenes and explain which is likely to be the major product. (iii) With an explanation identify which stereoisomer of 8 would give alkene 9?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Predict the principal organic product of each of the following reactions: (a) (b) (c) 8 Br + NaC CH + CH3CH₂Li 1. Mg, THF | 2. HCH 3. H30+ 1. liquid ammonia 2. H3O+ 1. diethyl ether 2. H3O+
CH2023 Q2 (b)
Predict the major products resulting from the addition of one equivalent of HX to the following alkynes. (a) (b) Ph m H HBr HCI HCI
Following compounds are given to you:2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane(i) Write the compound which is most reactive towards SN2 reaction.(ii) Write the compound which is optically active.(iii) Write the compound which is most reactive towards β – elimination reaction
Based on the more stable conformation (conformation A), need help providing two mechanisms for the E2 elimination of the protonated version of cis-1 using a general base (B:) to give alkenes 2 and 3. Clearly show which hydrogens meet the stereochemical requirements for E2-elimination Using Zaitsev’s rule, indicate which is favoured. Pictured is also a reaction mechanism to show what the alkenes 2 and 3 are. Thank you :)
Provide the products, intermediates, and/or reagents forthe following reactions:
(b) Answer BOTH parts (i) and (ii). (i) Using your knowledge of silicon chemistry, explain why the synthesis of a compound containing a formal Si=0 double bond is challenging. (ii)Bearing in mind your answer to part (i), suggest a synthetic route to a silanone, R2Si=O, starting from silicon tetrachloride SiCl4 and using any other reagents you choose. Identify all reagents and side-products in your synthetic route and specify your chosen R group, giving reasons for your choice.
(a) Write the products of following reactions. Give mechanism with proper stereochemistry? (2 x 2.5 = 5) (ii) Me Δ Δ CN
10-11
(a) In an acid-catalyzed hydration, one of the following 10 carbon alkynes is expected to produce a single hydration product? Select the correct alkyne and draw the structure of the hydration product that is formed from this alkyne. (I) 2-decyne; (II) 3-decyne; (III) 4-decyne; (IV) 5-decyne; (V) none of these will give a single hydration product. (b) The reaction shown below gives Compound X as the major product. The mass spectrum of X is shown. Br2, H20 Compound X 100 - MS-IW-5644 80 60 40 - 20 - 20 40 60 80 100 120 140 160 180 200 220 m/z Considering the reactions of alkynes and the MS data, de duce which of following structures corresponds to X: Br Br HO, IV V I II II Support your answer with a reaction mechanism for fomation of X and identification of relevant peaks in the mass spectrum. 12 Relative Intensity
(a) For the reaction of 1-methoxy-4-methylbenzene with CH3C(O)CI in the presence of AICI3, describe the bonding and electron distribution in 1-methoxy- 4-methylbenzene, formation and structure of the electrophile in the reaction, and the most stable intermediate responsible for the end product. i H3C1 CI, AICI 3 Me- -OMe 1-methoxy-4-methylbenzene (b) Use phenol as the substrate, propose a synthetic scheme to produce 2-allyl-4-bromophenol (Mechanism not required). Br OH OH phenol 2-allyl-4-bromophenol (c) Propose a synthesis of Compound A starting from benzaldehyde and other necessary reagents of your choice (Mechanism not required). OH CHO CI. Compound A benzaldehyde (d) For the given 13C NMR chemical shifts of the carbonyl carbons in the order of ketones > aldehydes > carboxylic acids, provide an explanation. O CH3 H3C. 13C NMR Chemical Shifts: H₂C1 H₂C H > OH 200 ppm 181 ppm 209 ppm
Predict the products formed by sodium hydroxide-promoted dehydrohalogenation of the following compounds. In eachcase, predict which will be the major product.(a) 1-bromobutane (b) 2-chlorobutane