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- Provide reagents/conditions to accomplish the following syntheses. Several steps are required in some cases.Draw the four resonance structures formed during bromination of methoxybenzene, CH3OC6H5, with Br2/FeBr3 to give para-bromomethoxybenzene and then circle the most stable resonance form.Consider the series of the trans effect: CO, CN-, C2H4 > PR3, H-, CH3- > C6H5- > NO2-, SCN-, I- > Br- >Cl- > py > NH3 > H20 What would be the major product of the following reaction? Select one:
- Choose reagents to convert 2-cyclohexenone to the following compounds. Syntheses may require several steps. Use letters from the table to list reagents in the order used (first at the left). i 1. Li(CH2=CH)2Cu Reagents a 1. Li(CH3)2Cu 2. H3O+ e 1. Li(C6H5)2Cu 2. H3O+ b 1. NaBH4 f CH2l2/Zn(Cu) / ether j 2. H3O+ C NH3 / KOH g 1. CH3MgBr/dry ether k 2 H3O+ d H2NNH2/KOH h HN(CH3)2 HO CH3 a) b) OH N(CH3)2 2. H3O+ (C6H5)3P+-CH2 H₂ over Pd/C KMnO4/H3O+In both examples below the reactants shown are combined to bring about a nucleophilic substitution (SN1, Sn2) and/or elimination (E1, E2) reaction. What is the major reaction that takes place in each case? CH3 NaOCH2CH3 CH,CH,CCH3 CH;CH,OH SN2 E2 mixture of SN1 and E1 NaSCH3 CH3OH CH2IAre these correct?
- The following series of reactions will yield 2) CI-CH2-CH2-C6H5 1) CH3CH2SH + N2OH O 2-chloro-4-ethyl-benzenesulfonic acid O CH;CH2-S-CH2CH2C6H5 O ortho-chloro-ethyl-benzene O 1-phenyl-3-chloro-propane O CH3CH2-O-CH2CH2C6H5In EAS bromination reactions, a -CON(CH3)2 substituent on the aromatic ring is: an activator and an o,p-director. a deactivator and a m-director. an activator and a m-director. the substituent catalyzes the 1,2 addition of bromine across the double bond. a deactivator and an o,p-director. G6. Provide the missing reagent(s) that gives the desired product in high yield. POMOL 129 129 16m2 sn RCH₂CH₂ ? CH₂CH₂R 20112⁰ D">OH H₂CO-D H H A) NaOCH3 B) 1. TsCl/Base; 2. NaOCH3 C) 1. NaH; 2. CH3I D) 1. CH3COCI/Base; 2. NaOCH3
- Ethers/Aldehydes/Ketones SynthesisPrepare the following compounds from any simple alkyl halide having four carbons or less,cyclohexane, and/or benzene. You may also use ethylene oxide (oxacyclopropane). SHOW ALLSTEPS AND REAGENTS with arrows.Which set of reagents would be appropriate to synthesize bromobenzene from benzene? 1. HNO3 in H2SO4; 2. H2Cr04 and heat 1. H2CrO4 and heat; 2. H2 Pd/C Br2 and FeBr3 1. CH3CH2CHCI and AICI3; 2. H204 and heat 4B12 and Fe Heat and Br2 Br2, HCIWhich of the following compounds is the most reactive towards electrophilic aromatic subsitition by Br2? NO2 NO2 NO2 CH3 NMe2 NO2 В D E F A C AB C DEE O O O O OO