1. b The leaving group is typically the conjugate base of a strong acid.
2. Polar protic acid favor SN1 reaction.
b. II only
3. d CH3Cl
4. Lower temperature favor SN1 reaction.
e. SN1
Which statement or set of conditions listed below is not consistent with an Syl reaction pathway?...
Which statement or set of conditions listed below is not consistent with an Syl reaction pathway? a. The leaving group is typically the conjugate base of a strong acid. b. The temperature is relatively "cooler" to reduce competing elimination products. c. The solvent is polar and protic. d. All of these are consistent with an Sni pathway. e. Neutral nucleophile work just fine. f. The rate is not dependent upon the concentration of the nucleophile. · The substrate has a...
Which attacking species shown below would be the best choice to enforce an E2 pathway over an SN2 pathway for the reaction below? Attacking Species? BI CH; H -¢-o CH,MgB HC-0-0 CH; (a) H (b) (c) NH OH (d) SH (1) e Which solvent(s) listed below would be satisfactory in Sn2 reactions? HzC CH DMSO CH3CH,OH o HzC. Н.С DMF I II III a. I only b. II only c. III only d. I and II e. I and III...
Choose the best answer for the main type of reaction shown below: For an SN2 reaction, the BEST scenario would be: Select the term that best identifies relationship between the two molecules shown. Choose the best answer for the main type of reaction shown below: (1 mark) EtOH a) b) 2° alkylhalide, Syl reaction, one product 2° haloalkane, Syl reaction, racemic products 2º haloalkane, Sn1/E1 reactions, racemic products and alkene products 2º haloalkane, Sn2 reaction, one product 2° alkylhalide, Sn2...
Sul B Sx2 Either Syl or S2 None of these D) 103) What substitution reaction mechanism is most likely for the following conversion? A) SI SN2 Either Snl or S2 None of these 105) Which of the following is a strong nucleophile? OH H0 A) B) C) D) E) CH OH ΝΗ, All of these 108) Which of the following is a weakest nucleophile in a polar protic solvent? A) F B) CH Br D) E) All of these 111)...
Which of the following is true for reactions A, B, and C? 8. CH3CH2CH,+ Br CH,CH2CH2 + HBr CH CH2CH, + Br CH CH CH3 + HBr CH CH:CH; + Cl CH,CH-СH, + HCI A C a. Reaction A has the lowest activation energy b. Reaction B is the fastest reaction c. Reaction C has the lowest activation energy d. Reaction C is the slowest reaction 9. Which of the following statements is false? a. The rates of Sy1 reactions...
Which reaction pathway is favored given the following substrate and conditions? ci NaBr Acetone a. E2 b. Syl El c SX2 d. SN 2 E2 e. E1 f. Sni
Which solvent(s) listed below would be satisfactory in Snl reactions? 0 o Н;С CH; DMSO H3C Н;С CH3CH2OH H DMF I II III a. I only b. II only c. III only d. I and II Oe. I and III f. II and III Og. All of the above What two products are expected in the following reaction? CH3 HBT H H BI CH CH; CH BI H Br I II III H Br Br H CH; CH IV V...
Any help?! Which reaction pathway is favored given the following substrate and conditions? Ci xi NaBr Acetone a. SN2 b. Sni c. E1 d. SN2/E2 e. E2 f. Sn1/E1
Which reaction pathway is favored given the following substrate and conditions? CH3OH -78 °C OTS a. Sn1/E1 b. Sn2/E2 CSN2 d. E1 e. E2 f. SN1
Which mechanism(s) listed below generally proceed(s) smoothly when a low concentration of neutral nucleophile base is used in the presence of a polar protic solvent? O a. Sy2 b. Syl and El c. El d. E2 e. Si f. Sn2 and E2