Which of the following reactions is classified as a Williamson ether synthesis?
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Which of the following reactions is classified as a
Williamson ether synthesis?
d) Which of the...
7. Three reactions are depicted below. Indicate which of the reactions is not a Williamson ether...
7. Three reactions are depicted below. Indicate which of the reactions is not a Williamson ether synthesis. Of the remaining two reactions, predict the products of each reaction. Which is expected to be a more successful Williamson ether synthesis? HC ОН CH3 K,CO,, MEK reflux OH K,CO, MEK CH3 H₃C/ CH3 reflux H2C OH NaH diethyl ether reflux CHE
reaction of a ........with an alkyl halide, 19. The Williamson ether synthesis consists of an alkyl...
reaction of a ........with an alkyl halide, 19. The Williamson ether synthesis consists of an alkyl sulfonate, or alkyl sulfate. A SNI, sodium chloride B. SN2, sodium alkoxide C. El sodium chloride DE2, sodium chloride 20. Which of the following statements is not true regarding oxymersuration- demecution? A. They are regioselective reactions. B. The net reaction does not follow Markoynikey's Rule in its original statement. C. The reducing reagent NaBH, is involved in demersuration D. Water is required for the...
e) Typically. Williamson ether synthesis is conducted using Na, a very strong base in the reaction...
e) Typically. Williamson ether synthesis is conducted using Na, a very strong base in the reaction in d. however, the Williamson ether synthesis was accomplished with K.CO a much weaker base Why can K.CO, be used for this Williamson ether synthesis? n What general type of reaction is occurring here? g) Predict the reagents, then propose a mechanism (Hint: don't reduce the ester) OCH,
Which of the following alkyl halides would be the least reactive substrate in a Williamson ether...
Which of the following alkyl halides would be the least reactive
substrate in a Williamson ether synthesis (reaction with NaOEt ;
sodium
alkoxides to form ethers)?
Which of the following alkyl halides would be the least reactive substrate in a Williamson ether synthesis (reaction with NaOEt ; sodium alkoxides to form ethers)? C) CH3CH(CH3)CH3 B) CH3CHCHZ A) CH3CH Br Br D) CHCHCHCHC D) CH3CH2CHCH2CH3 E) CHCI Hai
Complete the following reactions which form ethers (A and B) and cyclic ethers (C-E) as major...
Complete the following reactions which form ethers (A and B) and cyclic ethers (C-E) as major products. SHOW MECHANISMS FOR ALL A) (1R, 2R)1,2-dimethylpropan-1-ol (2 has a dash Methyl and 1 has a wedge methyl) reacts with NaH/CH3CH2Br B) 3-methylpent-3-ene reacts with Hg(OAc)2/ CH3CH2OH, NaBH4 C) 2-cyano-6-methyl cyclohept-1,4,6-triene-4-al reacts with MCPBA/CH2Cl2 D) (2R,3S)- 2-bromo-butan-3-ol reacts with NaOH E) Cyclobutyl as the base chain with (CH2OH attached at Carbon 1 and CH2CH2Br attached at carbon 2) reacts with KOH F) 2-methylcyclohexene...
1. Which reagent could be used in a Williamson Synthesis of cyclohexyl methyl ether? H2SO4, NaCl,...
1. Which reagent could be used in a Williamson Synthesis of
cyclohexyl methyl ether?
H2SO4, NaCl, H2O, or NaH
-----------------------
2. Which carboxylic acid is the most acidic?
---------------------
3. A reaction that would give n-hexyllithium is:
CH3CH2CH2CH2CH2Br + 2Li
CH3CH2CH2CH2OH + Li
CH3CH2CH2CH3 + Li
CH3CH2CH2CH2Br + LiBr
CH3CH2CH2CH3 = CH3Li
----------------------
4. Starting with p-bromoanisole, what sequence of reactions will
produce p-methylanisole?
1. CH3l 2. Mg, ether
1. Mg, ether 2. CH3l
1. Br2, AlBr3 2. Mg, ether...
a) tert 14. Which of any alcohol upon reaction with methylmagnesium Which of the following compounds...
a) tert 14. Which of any alcohol upon reaction with methylmagnesium Which of the following compounds does NOT give a tertiary bromide? CH, HC CH₂ D - Η Β) 10. Which of the following compounds is NOT oxidized by pyridinium chlorochromate (PCC)? a) 2-methyl-2-butanol b) 1-pentanol c) 2-pentanol D) 1,3-propanediol 11. What is the complete systematic IUPAC name for the following compound? A) 4-(1-methylethoxy)-4-isopropyl-4-methylpent-2-cne B) 4-isopropyl-2,4-dimethylhept-5-en-3-ol C) isopropyl-(4-isopropyl-4-methylbut-2-enyl) ether D) 4 isopropoxy-4,5-dimethylhex-2-ene E) 4-isopropyl-4-methylbut-2-en-isopropyl ether 12. Which of the following...
In a Williamson ether synthesis with sodium ethoxide and 1-bromobutane, with ethanol as the solvent, which...
In a Williamson ether synthesis with sodium ethoxide and 1-bromobutane, with ethanol as the solvent, which substances would be distilled and which substance would distill first?
How would one go about synthesizing benzyl methyl ether via Williamson-Ether Synthesis from these chemicals available?...
How would one go about synthesizing benzyl methyl ether
via Williamson-Ether Synthesis from these chemicals available? The
5 chemicals (with red caps) in the top row from left to right are:
2-Chloro-norbornane, Benzyl chloride, 2-Chloro-2-methyl propane,
4-Chloro-1-butanol, and Chlorobutane.
Second question: What is the mechanism for said
reaction? (formula)
Reactions EXIT +-C1 HOMCI 9:39 Esterification Alcohol Halogenation Alkyl Halide Solvolysis Alkene Hydration Hydroboration Alkene Bromination Alkene Dihydroxylation Epoxidation Diels Alder Aldol Grignard Addition Benzene Nitration Friedel-Crafts Add Chloride Carbonyl Reduction...
2.(20) The following five reactions show reactants, reagents and products. In each reaction one of the...
2.(20) The following five reactions show reactants, reagents and products. In each reaction one of the categories is missing (represented by a letter). Supply the missing reactant, reagents or product where appropriate in each reaction. In your structures, be sure to indicate stereochemistry where warranted. A= a) b) H2, 5%Pt/C CH212. Zn(Cu) in ether c) C : CH Br2 in H20 d) D : phase transf. cat OH 1) Hg(OAc)2, H20 2) NaBH4 e)
7. Three reactions are depicted below. Indicate which of the reactions is not a Williamson ether synthesis. Of the remaining two reactions, predict the products of each reaction. Which is expected to be a more successful Williamson ether synthesis? HC ОН CH3 K,CO,, MEK reflux OH K,CO, MEK CH3 H₃C/ CH3 reflux H2C OH NaH diethyl ether reflux CHE
reaction of a ........with an alkyl halide, 19. The Williamson ether synthesis consists of an alkyl sulfonate, or alkyl sulfate. A SNI, sodium chloride B. SN2, sodium alkoxide C. El sodium chloride DE2, sodium chloride 20. Which of the following statements is not true regarding oxymersuration- demecution? A. They are regioselective reactions. B. The net reaction does not follow Markoynikey's Rule in its original statement. C. The reducing reagent NaBH, is involved in demersuration D. Water is required for the...
e) Typically. Williamson ether synthesis is conducted using Na, a very strong base in the reaction in d. however, the Williamson ether synthesis was accomplished with K.CO a much weaker base Why can K.CO, be used for this Williamson ether synthesis? n What general type of reaction is occurring here? g) Predict the reagents, then propose a mechanism (Hint: don't reduce the ester) OCH,
Which of the following alkyl halides would be the least reactive
substrate in a Williamson ether synthesis (reaction with NaOEt ;
sodium
alkoxides to form ethers)?
Which of the following alkyl halides would be the least reactive substrate in a Williamson ether synthesis (reaction with NaOEt ; sodium alkoxides to form ethers)? C) CH3CH(CH3)CH3 B) CH3CHCHZ A) CH3CH Br Br D) CHCHCHCHC D) CH3CH2CHCH2CH3 E) CHCI Hai
1. Which reagent could be used in a Williamson Synthesis of
cyclohexyl methyl ether?
H2SO4, NaCl, H2O, or NaH
-----------------------
2. Which carboxylic acid is the most acidic?
---------------------
3. A reaction that would give n-hexyllithium is:
CH3CH2CH2CH2CH2Br + 2Li
CH3CH2CH2CH2OH + Li
CH3CH2CH2CH3 + Li
CH3CH2CH2CH2Br + LiBr
CH3CH2CH2CH3 = CH3Li
----------------------
4. Starting with p-bromoanisole, what sequence of reactions will
produce p-methylanisole?
1. CH3l 2. Mg, ether
1. Mg, ether 2. CH3l
1. Br2, AlBr3 2. Mg, ether...
a) tert 14. Which of any alcohol upon reaction with methylmagnesium Which of the following compounds does NOT give a tertiary bromide? CH, HC CH₂ D - Η Β) 10. Which of the following compounds is NOT oxidized by pyridinium chlorochromate (PCC)? a) 2-methyl-2-butanol b) 1-pentanol c) 2-pentanol D) 1,3-propanediol 11. What is the complete systematic IUPAC name for the following compound? A) 4-(1-methylethoxy)-4-isopropyl-4-methylpent-2-cne B) 4-isopropyl-2,4-dimethylhept-5-en-3-ol C) isopropyl-(4-isopropyl-4-methylbut-2-enyl) ether D) 4 isopropoxy-4,5-dimethylhex-2-ene E) 4-isopropyl-4-methylbut-2-en-isopropyl ether 12. Which of the following...
How would one go about synthesizing benzyl methyl ether
via Williamson-Ether Synthesis from these chemicals available? The
5 chemicals (with red caps) in the top row from left to right are:
2-Chloro-norbornane, Benzyl chloride, 2-Chloro-2-methyl propane,
4-Chloro-1-butanol, and Chlorobutane.
Second question: What is the mechanism for said
reaction? (formula)
Reactions EXIT +-C1 HOMCI 9:39 Esterification Alcohol Halogenation Alkyl Halide Solvolysis Alkene Hydration Hydroboration Alkene Bromination Alkene Dihydroxylation Epoxidation Diels Alder Aldol Grignard Addition Benzene Nitration Friedel-Crafts Add Chloride Carbonyl Reduction...
2.(20) The following five reactions show reactants, reagents and products. In each reaction one of the categories is missing (represented by a letter). Supply the missing reactant, reagents or product where appropriate in each reaction. In your structures, be sure to indicate stereochemistry where warranted. A= a) b) H2, 5%Pt/C CH212. Zn(Cu) in ether c) C : CH Br2 in H20 d) D : phase transf. cat OH 1) Hg(OAc)2, H20 2) NaBH4 e)
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