Homework Answers
a)
1. Grignard reaction of 3-hexanone with methylmagnesium bromide will give us desired product.
2. Similarly Grignard rection of 2-pentanone with ethylmagnesium bromide will give us desired product.
3. Reaction of propylmagnesium bromide and 2-butanone will give us desired product.
b)
1. Reduction of 3-pentanone using NaBH4 will give us desired product.
2. Reaction of propenal with ethylmagnesium bromide will give us desired product.
c)
Intramolecular cyclic reaction between aldehyde and alcohol in presence of acid will give us desired product.
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7.40 Suggest reagents that could be used to synthesize each of the following from an aldehyde...
from an aldehyde or ketone. 3. Suggest reagents that could be used to prepare (2 methods)
from an aldehyde or ketone. 3. Suggest reagents that could be used to prepare (2 methods)
5. Suggest reagents that could be used to synthesize each of the following compounds. OH OH...
5. Suggest reagents that could be used to synthesize each of the following compounds. OH OH (3 methods) and b а.
Give a mechanism and a set of reagents that can be used to synthesize each of...
Give a mechanism and a set of reagents that can be used to synthesize each of the following: a) synthesize 1-pentyne through the elimination of a dihalide b) synthesize cis-2-pentene from an addition reaction c) synthesize trans-2-pentene from an addition reaction d) synthesize a ketone from an addition reaction e) synthesize and aldehyde from an addition reaction
3. From what aldehyde or ketone could each of the following be synthesized by reduction witn...
3. From what aldehyde or ketone could each of the following be synthesized by reduction witn NaBHs or LIAIH4. -CH,он (a) он H3C-CH-CH2 CH (b) OH он 4. Show how CaHsMgBr, the Grignard Reagent prepared from ethyl bromide, can be used as a starting material in the preparation of each of the following compounds. он (a) Ph-CH CH2-CH (b) CH,CH CH2CH,0н (c) CH-CH-ҫ#о Ph-C CH-CH2 (d) Ph 17
Suggest a synthesis for each alcohol, starting from an aldehyde or a ketone and an appropriate...
Suggest a synthesis for each alcohol, starting from an aldehyde
or a ketone and an appropriate Grignard reagent (the number of
combinations of Grignard reagent and aldehyde or ketone that might
be used is shown in parentheses below each target molecule):
(Two combinations) 1. CH3MgBr in ether 2. Hz0+ 1. B in ether H 2.H30* Structure A: ? Edit Structure B: (Two combinations) MgBr 1. ether + C 2. H30 1. E in ether 2. H30* 1. CHM9Br in ether...
H D) Suggest a method to efficiently synthesize each of the following molecules from an alkene using the reactions....
H D) Suggest a method to efficiently synthesize each of the following molecules from an alkene using the reactions. we have learned so far. Give the starting alkene and all reagents necessary. In order for the synthesis to be efficient, the desired product should be the major product formed Br Н,с, На Нс 1 CH3 сH, он На сH CH3 2 Нас" Reicion P ,Br 3 осн, CHy Br Н,с. Нас
Synthesize the two compounds shown below from 4 carbon or less alcohol, aldehyde, ketone or alkylhalide,...
Synthesize the two compounds shown below from 4 carbon or less alcohol, aldehyde, ketone or alkylhalide, calcium carbide, any inorganic reagents or solvents -сн,сH,сH,сH, но- -сн,сH,снсH, но-
5. Show how you could synthesize the following. (16 pts) A Using the Wittig reaction y...
5. Show how you could synthesize the following. (16 pts) A Using the Wittig reaction y vang Ho wang reason Mo + Phypoger 8 ОН Hint: Use the appropriate aldehyde or ketone, and a Grignard Reagent 6. Write the mechanism for the following reaction. (8 points) OH 1. emger 2. H₂O*
Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be...
Draw structural formulas for an aldehyde or ketone and alkyl (or
aryl) bromide that could be used in a Grignard synthesis of the
alcohol shown.
Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in a Grignard synthesis of the alcohol shown он 0% CH You do not have to consider stereochemistry. If there is more than one combination, draw only one. Draw one structure per sketcher. Add additional sketchers using the...
1. Each of these molecules is an acetal, that is, a compound made from an aldehyde...
1. Each of these molecules is an acetal, that is, a compound made from an aldehyde or ketone and two alcohol groups. Which compounds were used to make these acetals? 3388 a. O 20
from an aldehyde or ketone. 3. Suggest reagents that could be used to prepare (2 methods)
5. Suggest reagents that could be used to synthesize each of the following compounds. OH OH (3 methods) and b а.
3. From what aldehyde or ketone could each of the following be synthesized by reduction witn NaBHs or LIAIH4. -CH,он (a) он H3C-CH-CH2 CH (b) OH он 4. Show how CaHsMgBr, the Grignard Reagent prepared from ethyl bromide, can be used as a starting material in the preparation of each of the following compounds. он (a) Ph-CH CH2-CH (b) CH,CH CH2CH,0н (c) CH-CH-ҫ#о Ph-C CH-CH2 (d) Ph 17
Suggest a synthesis for each alcohol, starting from an aldehyde
or a ketone and an appropriate Grignard reagent (the number of
combinations of Grignard reagent and aldehyde or ketone that might
be used is shown in parentheses below each target molecule):
(Two combinations) 1. CH3MgBr in ether 2. Hz0+ 1. B in ether H 2.H30* Structure A: ? Edit Structure B: (Two combinations) MgBr 1. ether + C 2. H30 1. E in ether 2. H30* 1. CHM9Br in ether...
H D) Suggest a method to efficiently synthesize each of the following molecules from an alkene using the reactions. we have learned so far. Give the starting alkene and all reagents necessary. In order for the synthesis to be efficient, the desired product should be the major product formed Br Н,с, На Нс 1 CH3 сH, он На сH CH3 2 Нас" Reicion P ,Br 3 осн, CHy Br Н,с. Нас
Synthesize the two compounds shown below from 4 carbon or less alcohol, aldehyde, ketone or alkylhalide, calcium carbide, any inorganic reagents or solvents -сн,сH,сH,сH, но- -сн,сH,снсH, но-
5. Show how you could synthesize the following. (16 pts) A Using the Wittig reaction y vang Ho wang reason Mo + Phypoger 8 ОН Hint: Use the appropriate aldehyde or ketone, and a Grignard Reagent 6. Write the mechanism for the following reaction. (8 points) OH 1. emger 2. H₂O*
Draw structural formulas for an aldehyde or ketone and alkyl (or
aryl) bromide that could be used in a Grignard synthesis of the
alcohol shown.
Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in a Grignard synthesis of the alcohol shown он 0% CH You do not have to consider stereochemistry. If there is more than one combination, draw only one. Draw one structure per sketcher. Add additional sketchers using the...
1. Each of these molecules is an acetal, that is, a compound made from an aldehyde or ketone and two alcohol groups. Which compounds were used to make these acetals? 3388 a. O 20
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