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- 2. Provide a detailed mechanism for the following reaction: Br NBS lightDraw the mechanism and predict the major product for each of the following reactions. (a) (b) 1. NaH 1. NaH -? ? 2. Br I 2.Which compound would react faster by an SN2 process? H3C CH3 H3C,,, CH3 H3C,,, CH3 A B 0 Br (A) Br Br (B) (C) H3C Br (D) CH3
- (c) Propose a synthesis of C from D and any other reagents of your choice. Show reaction mechanisms and discuss regioselectivity. Ph N. S. Ph Ph .CO,Me NH2 C DQ17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H2N. C5H9NO CH3OH 2Arrange the compounds below in order of increasing reactivity in a SN2 reaction. 1. (CH3)2СНCI 2. CH3CH2B1 3. CH3CH2C1 A) 1; 2; 3 В) 3;B 2; 1 C) 1; 3; 2 D) 2; 1; 3 E) 3; 1; 2
- For the reaction shown, the major products form via the A) SN1 B) SN2 C) E1 D) E2 H₂, Br CH3CH₂OLi ©2017 ProtonGuru.com E) Mixture of E1 and E2 F) Mixture of S1 and SN2 G) Mixture of Sn2 and E2 H) Mixture of S1 and E1 1) No reaction pathway(s).Which is the major substitution product of the reaction shown? (A) OEt (C) (E) no reaction Br NaOEt © 2019 ProtonGuru.com (B) (D) OEt (F) a mixture of more than onePredict the main products of the following reactions, demonstrating clear stereochemistry when necessary. a) b) Br2. H2O HCI c) d) MCPBA H2 Ni e) 1) ВН; THF 2) H2O2 NaOH f) H2SO4, H9SO4 H3O*
- Draw the mechanism and predict the major product for each of the following reactions. (a) (b) (c) 1. KCN, H2O ? 1. KCN, H,O 1. CH;MgBr, ether ? 2. H,SO4 2. H2SO4 2. NH,CI, H,O (d) (e) 1. CuLi 1. CH;CH,SNa, ethanol 2. NH,CI, H,O 2. NH,CI, H,OIdentify the best conditions to complete the SN2 reaction shown below. A) CH3I, THF B) CH3CH₂I, THE C) CH3CH₂CCNa, THF D) CH3CH₂CCNA, CH3OH E) KI, THFWhat will be the major product of the following reaction and what is the likely mechanism for its formation? (CH;);COK Br racemic OCCCH3)3 OCCH3)3 ÓCCCH3)3 A B C D E