37) Identify the enol tautomer of the following compound. 37) 0 OH OH IV A) I...
Which of the following is an enol tautomer for the ketone listed at right? OH ОН OH (a) i only (b) ii only (C) iii only (e) i and iii
Using the compound bank below, indicate the keto or enol tautomer of the given compound. Write the letter that corresponds to your answer in the blank. NOTE: refer to the bank for both the structures of the given and its tautomer. If the tautomer is not included in the bank then write NONE. A D H ОН OH como . B E H к ОН OH -OH OH C F L oi H di tautomer of compound A= tautomer of...
The alpha-carbon in the enol tautomer of a carbonyl compound is: a. nucleophilic b. electrophilic c. amphiphilic d. sp2 hybridized as the ketone tautomer e. sp3 hybridized as the enol tautomer
Question 3 Which of the following is a keto-enol tautomeric pair? OH OH OH and and o and COM OH I II III он OH a and a and IV CA. 1 B. V C.II D. IV E. III Question 4 What would be the major product of the following reaction sequence? он PCC 1. LDA(-78C) 2. CHCHOI ? CH C1 HO వరలో I II MI o IV A. II B. I C. V D. III E. IV
explain 21. Which of the following represent the enol form of the following molecule? OH OH cox cox B)11, CI DIVE) None of the above III IV 4)1 A) I B) II C) III D) IV E) None of the above
All of the compoung hown below have an enol tautomer. Which compound's enol exists in the highest percentage enol form? Q Zoom B С D E MULTIPLE CHOICE OH b с d Q Zoom
10. Which compound (I-IV) is a meso compound? CH2OH CH3 CH3 OH HO CH3 CH3 CH3 СНЗ он он IV A) I B) II C) III D) IV E) None of these choices.
please explaine 2) Identify the chiral compound(s) below. IV A) only II B) III and IV C) II and III D) I, II, and IV
4. Which tautomer of phenol is favored and why? A. enol, better hydrogen bonding C. keto, better CO resonance B. enol, aromaticity D. 1:1 both keto and enol forms are favored 5. Which base will completely and irreversibly form the enolate of the compound shown?: ? A. KOH B. NaOH C. NHS D. NaNH2
11. Identify the product(s) of the following reaction. A. I B. II C. III D. IV E. V Gom Do is a From co be on) porno porno olyan 12. What is the final product obtained when toluene is subjected to the following reaction sequence? i) Clz (large excess), heat, hv; ii) OH-/H20, heat; iii) H30+ A. I OH B. II OH COH C. III U OH D. IV E. V I II Hol YCC, III HOCCI3 C/ стон с...