Q: ?nucleophiles اختر واحدة أو أكثر a. CH4 Ob. Br c. H20 d. NH3 e. H2C=CH2 (-)f. OH (+)g. Br h. BH3
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Q: Choose all the nucleophiles OH- H3O+ NH4+ CH3OH (CH3)3CLi CH3CH2CH3 NaNH2…
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Q: 2. A. Rank the following compounds by the rate of SN1 reactivity. Molecule that reacts fastest with…
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Q: 2. What is the major product of the following Friedel-Crafts alkylation? CH3 + CH;CHCH,CI AIC13…
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Q: Why are NH3 and CH3NH2 no longer nucleophiles when they are protonated?
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A: See answer below.
Q: Rank the nucleophiles in following group in order of increasing nucleophilicity. H2O, −OH, CH3CO2-
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Q: Which of the following reagent best accomplish this transformation below? a. BH3, THF, H2O2 b.…
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Q: b) Explain in detail what characteristics of the alkyl halide influence whether a mechanism will be…
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Q: 1. For each of the following pairs of SN2 reactions, indicate which reaction occurs faster: a)…
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Q: 2. The reaction below proceeds through two different pathways. 60% of reaction proceeds through Sn1…
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Q: Which of the following are good nucleophiles and strong bases? Choose all that apply. O1. HOC(CH3)3…
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Q: what mechanism is involved? SN1, E2, E1, or SN2
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Q: A nucleophilic substitution reaction is shown below. Identify the nucleophile. I A) CH:S- B) Na II…
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A: The reaction of alkene with HBr in presence of peroxide (addition of HBr, ROOR) is
Q: Which one of these provides the strongest nucleophile in an SN2 reaction? a) HC=N b) NaC=N c) NH3 d)…
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Q: Rank the nucleophiles in following group in order of increasing nucleophilicity. −OH, −NH2, H2O
A: The word 'nucleophile' comes from two words- nucleus and 'philos' means love. Nucleophiles are…
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Q: For each case below, explain why those are the favored mechanisms Strong bulky bases (primary and…
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Q: Rank the following compounds in order of decreasing SN1 reactivity?
A: carbocation intermediate stability order : 3°>2°>1°
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Which nucleophile in each pair which would give the faster SN2 rate?
(a) (CH3)2S or (CH3)2Se
(b) (CH3)3CO- or CH3O-
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- Rank A, B, and C in order of increasing SN1 reactivity.Which of the following compounds (A or M) would be the better choice for a nucleophilic substitution reactionusing Compound T as the starting material and DMSO as the solvent? Would the resulting reaction be SN1 or SN2?Which compound would undergo carbocation rearrangement during an SN1 reaction? A B C D
- 1. Draw a reasonable arrow-pushing mechanism for the transformation shown along. 2. Identify nucleophiles and electrophiles 3. Name any type of reactions taking place like E2 or E1 4. Account for any regio- or stereoselectivityArrange these compounds in increasing order of reactivity in SN2 nucleophilic substitution?For each pair, predict the stronger nucleophile in the SN2 reaction (using an alcohol asthe solvent). Explain your prediction.(a) (CH3CH2)3N or (CH3CH2)2NH
- Which solvents favor SN1 reactions and which favor SN2 reactions?Arrange the following alkyl halides in increasing reactivity in E2 reaction. Write 1 for the least reactive, then 2 and 3 for the most reactive Answer: A. _____ B. _____ C. _____a. Explain why 1-bromo-2,2-dimethylpropane has difficulty undergoing both SN2 and SN1 reactions. b. Can it undergo E2 and E1 reactions?
- Bromide Bhas normal activity (for a secondary bromide) towards SN1 substitution, but A has much higher reactivity and Chas much lower reactivity.What is the best way to remeber the differences between Sn1, Sn2, E1 and E2 reations?Give a clear handwritten answer..give the mechanism of given bleow reactions and label with E1,E2,SN1,SN2....