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6. Some compounds can exist as the enol form at equilibrium in high percentage. Which compound...
6. Some compounds can exist as the enol form at equilibrium in high percentage. Which compound of those shown below will exist with the highest percent in the enol form?: 0 8 OH B. C. D. 7. Select the product for the reaction indicated: Br Br Bra AcОН Br Br , Br & B.
6. Some compounds can exist as the enol form at equilibrium in high percentage. Which compound of those shown below will exist with the highest percent in the enol form?: 8 8 d 8 A. 7. Select the product for the reaction indicated: 0 Br Bry AcOH Br Br Br A. B D
6. Which one of the following carbonyl compounds has the highest percentage of enol when keto-enol equilibrium has been established? D 7. What is the major organic product that is formed from the reaction on the right? H2SO4 но 3 ОН Он ОН HO C) 3 A) 1 B) 2 D) 4
O4 04 H 3 Some compounds can form more than one enol tautomer. Draw all the possible enol tautomers for the following compounds. OEt 이1 OH OH 4 Circle the side of the reaction favored at equilibrium. (lot audic) OH + H20 H H pKa 15.7 pКа в 17 tBuO + tBuOH + pКa 3 9 pKa 17
In aqueous basic or acidic solutions, carbonyl compounds are in equilibrium with their enol forms. a) The protonation of enol in a neat sample of the two ketones below are shown. Explain why they are so different. b) Show the starting material, conditions and mechanism for formation of compound E using a Dieckmann condensation reaction. c) Provide a product of the following reaction. CO2CH2CH3 4 x 10-4 % enol 62 % enol (PH)3P-CHz NaH, DMSO
1) Select the option which indicates how tautomers of carbonyl compound isomers are related: A. R/S stereoisomers C. keto/enol constitutional isomers B. cis/trans geometric isomers D. branched alkane constitutional isomers 2) Indicate the correct keto isomer for the compound on the left: OH ОН ? C. D. A. B. OH 3) Of these options, which tautomer of phenol is favored? (Also give the reason why) A. enol, better hydrogen bonding C. keto, better C=O resonance B. enol, aromaticity D. 1:1...
Which one of the following compounds would exist in an ENOL form to the greatest extent? . H H H Which of the following statements is TRUE about the cyclopentadienyl cation? It is aromatic and has three filled bonding molecular orbitals It is aromatic and has two empty molecular orbitals It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has one half-filled molecular orbital Which one is the major product of the following reaction sequence? NH2...
u * $ & highest percentage and form All of the compound nown below have an eno tautomer. Which compound's enol exists in the Zoom c 0 MULTIPLE CHOICE OH i b с d Q Zoom
Which of the following reactions (A-D) will not work as drawn: [1 pt] reaction A MeΝΗ, reactionc HO INAMO MeNH H2SO4 reaction B HO H2SO4 reaction D 5: Which compound below (A-E) is the product of the reaction in the box: [1 pt] product 1) propionyl chloride, AICI, 2) NaCN, HCI 3) LAH 4)H20 OH of more on one B: Which compound below will have the highest percentage of enol form in solution: [1 pt) & fu & l 7:...
19. Which of the listed compounds can exist in equilibrium with the following compound via an enediol intermediate? он о CH,CH–C–CH,CH, ООН a. CH-C—CHCH, O b. HOCHZ-C-CH.CH OH OH C. CH, -CH=CH-CH, O 11 d. CH-C–OCH.CH CH,C-CHCH.CH 0 OH 20. b. c. d. e. 21. Assign the IUPAC name to the following compound. (CHỊ) CHCH CHO a. 3,3-dimethyl-propanal 3.3-dimethyl-butanone 3,3-dimethyl-propanol 3-methyl-butanal 3,3-dimethyl butanol Which alcohol(s) will be formed when the following is hydrolyzed? CH,CHÚCH CHOCHỊCH OCH, only methanol b. only...