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5) Which of the following is the most stable carbocation (circle one)? CН C—CH, IV I....
Problem Set Ch 22 Name: 1. Rank the following protons from most acidic to least acidie: CH, CH, Cн сн, сн.Ссн,Ссн , CH, СH,Ссн,сH, Cн,Ссн,Сосн,сн, сн,сн,Сосн, IV П Ш 2. Provide the structure of the enol when 3,3,6-trimethyl-4-heptanone is treated with acid. 3. Which of the following compound(s) would undergo racemization in presence of a base? Cн, product IV II II 4. Draw the mechanism for the following transformation. Но" Br2
Which Newman projection represents the most stable conformation of (CH),CHCH(CH)2? CH3 CH3 СCH3 (B) (A) CH3 H CH3 "СHз CHз CH3 CH3 н CH3 (D) (C) H. tCH3 CH3 CH3 Н Н CH3 CH3
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV E) V 31) Which of the following is an aromatic hydrocarbon? IV -CH A)I B C)ID)IVE) V 32) Which of the following conjugated dienes will not react with a dieneophile in a Diels-Alder reaction? Π. IV A) I B)11 C)111 D) IVE) I and III 33) The conjugate acid of the compound shown below is B) aromatic D) antiaromatic. E) none of the above....
please answer questions 1-4 Question 1 Which of the following is the most stable carbocation? СН3 V. CH2 What is the major product of the following reaction? Н HBO C CHS CH CH CH3-CH ( CH, Br CH2-CH-C–CH, Br Br CH CH CH3-CH:-¢-CH Br ін, CHE CH CH.-CH- Br CH. D Question 3 What is the major product of the following reaction? CH, НО 1 Оснок IV. CH2OH CH3 "О" ОН Д. он СН3 CH3 Но Ш. CH, ОН Question...
8 AV What is the major product of the following reaction? CH CH +HB A)I B) I OH CH C) II D) IV E) V CH L IV CH CH Br CH II П. CH V. CHy CHBr CH II. CHBe 9. Which of the following is the most stable radical? SHOH AT CHCH CHCH III CHCH 10. Which of thellowing is the Initiation step for the monobromination of cyclohexane? B) II C) D) IV E)V 1. How many distinct...
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
6. Give IUPAC names for the following compounds b) а) CH,-CH,-CH-сH-с-сн, -сн, -сн, сн, CHCH X Cн, CH,-CHCH) - CH-сH, -CH Н CH CH С-с н нн CH2 CH CH(CH) Н.С - СH-СН-СН-СH н Н н сн, сн, CH С -с CH h) CH, -CH, -сH CH3 i)
11,12,13,14,15 pls 11) The most stable confermation of 3a a-ca e.caw ca in the back) 12) Which of the following structures has the S configurationP CH 10) A) Only I Only BOnly Il DI and t C)i and 13) Which compounds are achiral? CI Br H CH3 H H Br HC V IV II E)v D) l and IV C) II, l and IV AB)L Il and IV A) L. II and V 14) I and II are: O I1...
3) Which of the following is the most stable radical? І. CH2=CH IV. CH3CH Д. CH2=CHсн,сну V. CHECH- ш. Сн,снен, А) І В) І C) ШІ D) IV E) V
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following from most stable to least stable. 4. 1. 2. 3. Н-с H H Н.с H -H H CH3 CH,сн, CH,сH CH,CH H 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 Lnkentn CF3 CF3 Ш II I