Homework Answers
tertiary alkyl halides undergoes the SN1 reaction and
the products are formed are racemic mixture ad they are formed due
to the carbocation intermediate
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4. Consider the substitution reaction below. (4 pts.) NaSH DMF Br SH this reaction proceeds through...
1. Provide a systematic IUPAC name for the compound, including R/S and E/Z if appropriate. (3...
1. Provide a systematic IUPAC name for the compound, including R/S and E/Z if appropriate. (3 pts.) 2. Draw the bond-line structure of (2,4Z)-2,5-dibromo-3-methylhexa-2,4-diene. (3 pts.) 3. Label the most stable and the least stable alkene (4 pts.) 4. Consider the substitution reaction below. (4 pts.) NaSH DMF SH in why this reaction proceeds through an SN mechanism and not an S2 mechanism a) Explain why this reaction proces o b) Explain why this reaction produces a racemic mixture of...
answer B & C asap please 4. Consider the following reaction and answer the questions: -...
answer B & C asap please
4. Consider the following reaction and answer the questions: - Br HSCH, SCHE нс" HC HEC a) Draw the structure of the expected cation intermediate if the reactant underwent an SNl reaction b) The reaction produces almost an equal mixture of diastereomer products, does this indicate an Snl or Sn2 mechanism, explain your choice briefly? c) Even though a good nucleophile is present, explain in terms of reaction rates, why a mixture of products...
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if...
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if the reaction is an Snl reaction or Sn2 reaction. (d) Draw the products of the following substitution reactions. NaSH DMSO MeOH H- Br NaCN DMF
2. Draw a mechanism for the following SN2 reaction? [3] Br Cos SH NaSH + NaBr...
2. Draw a mechanism for the following SN2 reaction? [3] Br Cos SH NaSH + NaBr +
Given this reaction: Br SH ☺ - Did this substitution occur via SN1 or SN2 mechanism?...
Given this reaction: Br SH ☺ - Did this substitution occur via SN1 or SN2 mechanism? SN1 SN2
Choose the best answer for the main type of reaction shown below: (1 mark) EtOH Br...
Choose the best answer for the main type of reaction shown below: (1 mark) EtOH Br a) > b) c) d) e) 2° alkylhalide, Snl reaction, one product 2º haloalkane, Snl reaction, racemic products 2º haloalkane, SN1/E1 reactions, racemic products and alkene products 2° haloalkane, SN2 reaction, one product 2° alkylhalide, Sn2 reaction, racemic products
VII. (12 pts) Consider the following Sn2 reaction. Br -CN DMF a. assign configuration to the...
VII. (12 pts) Consider the following Sn2 reaction. Br -CN DMF a. assign configuration to the chirality center of the substrate. b. Write the structure of the product. c. assign configuration to the chirality center of the product.
VII. (12 pts) Consider the following Sn2 reaction. Br *CN DMF a. assign configuration to the...
VII. (12 pts) Consider the following Sn2 reaction. Br *CN DMF a. assign configuration to the chirality center of the substrate. b. Write the structure of the product. c. assign configuration to the chirality center of the product.
Consider this reaction: tempe CHOWE HY CH2OH - + Br—Br H3C01 The mechanism proceeds through a...
Consider this reaction: tempe CHOWE HY CH2OH - + Br—Br H3C01 The mechanism proceeds through a first cationic intermediate, intermediate 1. Nucleophilic attack leads to intermediate 2, which goes on to form the final product. In cases that involve a negatively charged nucleophile, the attack of the nucleophile leads directly to the product. H + Vor - C4 OH - Home + Br + CH3OH -Br Intermediate 1 Intermediate 2 (product) In a similar fashion, draw intermediate 1 and intermediate...
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if...
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if the reaction is an Syl reaction or Sn2 reaction. (d) Draw the products of the following substitution reactions. NaSH DMSO MeOH H- Br NaCN DMF
1. Provide a systematic IUPAC name for the compound, including R/S and E/Z if appropriate. (3 pts.) 2. Draw the bond-line structure of (2,4Z)-2,5-dibromo-3-methylhexa-2,4-diene. (3 pts.) 3. Label the most stable and the least stable alkene (4 pts.) 4. Consider the substitution reaction below. (4 pts.) NaSH DMF SH in why this reaction proceeds through an SN mechanism and not an S2 mechanism a) Explain why this reaction proces o b) Explain why this reaction produces a racemic mixture of...
answer B & C asap please
4. Consider the following reaction and answer the questions: - Br HSCH, SCHE нс" HC HEC a) Draw the structure of the expected cation intermediate if the reactant underwent an SNl reaction b) The reaction produces almost an equal mixture of diastereomer products, does this indicate an Snl or Sn2 mechanism, explain your choice briefly? c) Even though a good nucleophile is present, explain in terms of reaction rates, why a mixture of products...
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if the reaction is an Snl reaction or Sn2 reaction. (d) Draw the products of the following substitution reactions. NaSH DMSO MeOH H- Br NaCN DMF
2. Draw a mechanism for the following SN2 reaction? [3] Br Cos SH NaSH + NaBr +
Given this reaction: Br SH ☺ - Did this substitution occur via SN1 or SN2 mechanism? SN1 SN2
Choose the best answer for the main type of reaction shown below: (1 mark) EtOH Br a) > b) c) d) e) 2° alkylhalide, Snl reaction, one product 2º haloalkane, Snl reaction, racemic products 2º haloalkane, SN1/E1 reactions, racemic products and alkene products 2° haloalkane, SN2 reaction, one product 2° alkylhalide, Sn2 reaction, racemic products
VII. (12 pts) Consider the following Sn2 reaction. Br -CN DMF a. assign configuration to the chirality center of the substrate. b. Write the structure of the product. c. assign configuration to the chirality center of the product.
VII. (12 pts) Consider the following Sn2 reaction. Br *CN DMF a. assign configuration to the chirality center of the substrate. b. Write the structure of the product. c. assign configuration to the chirality center of the product.
Consider this reaction: tempe CHOWE HY CH2OH - + Br—Br H3C01 The mechanism proceeds through a first cationic intermediate, intermediate 1. Nucleophilic attack leads to intermediate 2, which goes on to form the final product. In cases that involve a negatively charged nucleophile, the attack of the nucleophile leads directly to the product. H + Vor - C4 OH - Home + Br + CH3OH -Br Intermediate 1 Intermediate 2 (product) In a similar fashion, draw intermediate 1 and intermediate...
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if the reaction is an Syl reaction or Sn2 reaction. (d) Draw the products of the following substitution reactions. NaSH DMSO MeOH H- Br NaCN DMF
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