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What is the theoretical yield (in grams) and percent yield of your triphenylmethanol product in this...
What is the theoretical yield (in grams) and percent yield of your triphenylmethanol product in this...
What is the theoretical yield (in grams) and percent yield of your
triphenylmethanol product in this experiment? (Weight of
triphenylmethanol: 0.060g)
BACKGROUND AND THEORY The Grignard reaction was one of the first organometallic reactions discovered and is still one of the most useful synthetically. By reacting an organohalide (usually a bromide) with magnesium in ethereal solvent, carbon becomes a nucleophile. Grignard reagents are the starting points for the syntheses of many alkanes, primary, secondary, and tertiary alcohols, alkenes, and carboxylic...
What is the theoretical yield (in grams) and percent yield of your triphenylmethanol product in this...
What is the theoretical yield (in grams) and percent yield of
your triphenylmethanol product in this experiment?
Assume that you have collected 0.15g of Triphenylmethanol for
the question.
Reaction Set Up ---- ALL glassware NEEDS to be DRY!!! Anhydrous CaCl2 -Drying tube 53 mg Mg turnings Claisen adapter + 2 mL anhydrous ether + 260 ul bromobenzene Air condenser Stir until reaction amber. Heat slowly to reflux for 10 min. Cool the reaction in ice bath for 5 min. Use...
help with calculating theoretical and percent yield? This is a grignard reaction which converts phenyagnesium bromide...
help with calculating theoretical and percent yield? This is a
grignard reaction which converts phenyagnesium bromide into
triphenylmethanol.
actual yield of product = 0.0958 grams
picture of reaction as well as data below:
also what would the limoting reagent be? magnesium?
[Actual moucular massused img Acinal amount im mon Reagents gi moi Magnesium 24.305 51.4. 2.1 Bromöbenzene 157.01 410.2 2.61 methyl Benzoate 136.16 141.5 1.04 mmol ether -Br + Mg MgBr Bromobenzene Phenyimagnesium bromide Methyl benzoate MgBr OH HCI +...
Can you please provide a reaction mechanism for the following reaction and explain what is happening...
Can you please provide a reaction mechanism for the following
reaction and explain what is happening at each step
A multistep synthesis demonstrating Grignard and Friedel Crafts reactions Part I and II Br MgBr Mg l21 diethyl ether bromobenzene MgBr 1, mix and heat OH 2, H30 benzophenone triphenylmethanol Part IV OCH3 H2so4 OCH3 anisole methoxytetraphenylmethane triphenylmethanol hane from a multistep reaction
What is the theoretical yield, pure % yield and crude % yield of Triphenylmethanol by Grignard...
What is the theoretical yield, pure % yield and crude % yield of Triphenylmethanol by Grignard reagent synthesis. 0.33 grams (0.22 mL) of bromobenzene is used (MW=157) with 0.068 grams of Magnesium (MW=24.32). 0.364 grams (MW=182.22) of benzophenone is used as well. 0.290 grams of Triphenylmethanol were obtained.
MgBr + anhydrous ether Mg MW: 24.31 Grignard reagent MW: 157.02 R-X + Mg - R-X...
MgBr + anhydrous ether Mg MW: 24.31 Grignard reagent MW: 157.02 R-X + Mg - R-X + Mga Single Electron Transfer (SET) R-X - R + X- R + Mg - RM RMG + X- RMX Ph MgBr Ph Lo MaBr H (Ph)3COH Pn H20 MW:260.34 Grignard reaction • Volume of bromobenzene is 4.5 mL. • Density of bromobenzene is 1.5 g/ml • Mass of benzophenone is 6.75g • We assume 65% yield of the product (triphenylmethanol) was obtained in...
What is the theoretical yield and the percent yield of this Grignard reaction which converts phenyagnesiumbromide...
What is the theoretical yield and the percent yield of this
Grignard reaction which converts phenyagnesiumbromide into
triphenylmethanol?
actual yield of final product is 0.00958grams
also would the limiting reagent be magnesium??
Reagent Amountured maghlesinm 51.4 mg Bromo benzene 4.10.2 2 mg methyl benzoatel 141.5 mg
The weight of triphenylmethanol is 0.060g QUESTIONS 1. (4 Points) What is the theoretical yield (in...
The weight of triphenylmethanol is 0.060g
QUESTIONS 1. (4 Points) What is the theoretical yield (in grams) and percent yield of your triphenyl- methanol product in this experiment? EXPERIMENTAL PROCEDURE All glassware used in a Grignard reaction must be scrupulously dried. Dry the following glassware in an oven at 110°C for at least 20 minutes: drying tube, Claisen adapter, 8 mL conical vial, 5 mL conical vial, air condenser, glass stirring rod, and a magnetic spinvane. DO NOT PLACE O-RINGS...
Grignard Reaction with a Ketone: Triphenylmethanol Introduction: The purpose of this lab is to prepare phenylmagnesium...
Grignard Reaction with a Ketone: Triphenylmethanol Introduction: The purpose of this lab is to prepare phenylmagnesium bromide, a Grignard reagent, and react it with benzophenone to give triphenylmethanol. Grignard reagents are very reactive and must be synthesized in an environment free of water or any other source of potential proton donor. Once made, the Grignard reagent will do a nucleophilic attack on the carbonyl carbon of the ketone, benzophenone. The result is an alkoxide that is then protonated to give...
Compound Mol. Weight (g) mmol amount (in g or mL) melting point (°C) Density (g/mL) Ref....
Compound
Mol. Weight (g)
mmol
amount
(in g or mL)
melting point (°C)
Density
(g/mL)
Ref.
bromobenzene
157.01
4.00
0.628
n/a
1.491
1
magnesium powder
120.37
4.00
0.097
n/a
n/a
2
ethyl ether
74.12
n/a
5.00
n/a
0.706
3
benzophenone
182.22
3.8
0.692
47-51
n/a
4
triphenylmethanol
260.33
160-163
n/a
5
5% HCl (aq.)
36.46
n/a
2.00
n/a
n/a
6
With this information, what is the theoretical yield of
triphenylmethanol?
HO Br Mg MgBr ether ether bromobenzene benzophenone triphenylmethanol
What is the theoretical yield (in grams) and percent yield of your
triphenylmethanol product in this experiment? (Weight of
triphenylmethanol: 0.060g)
BACKGROUND AND THEORY The Grignard reaction was one of the first organometallic reactions discovered and is still one of the most useful synthetically. By reacting an organohalide (usually a bromide) with magnesium in ethereal solvent, carbon becomes a nucleophile. Grignard reagents are the starting points for the syntheses of many alkanes, primary, secondary, and tertiary alcohols, alkenes, and carboxylic...
What is the theoretical yield (in grams) and percent yield of
your triphenylmethanol product in this experiment?
Assume that you have collected 0.15g of Triphenylmethanol for
the question.
Reaction Set Up ---- ALL glassware NEEDS to be DRY!!! Anhydrous CaCl2 -Drying tube 53 mg Mg turnings Claisen adapter + 2 mL anhydrous ether + 260 ul bromobenzene Air condenser Stir until reaction amber. Heat slowly to reflux for 10 min. Cool the reaction in ice bath for 5 min. Use...
help with calculating theoretical and percent yield? This is a
grignard reaction which converts phenyagnesium bromide into
triphenylmethanol.
actual yield of product = 0.0958 grams
picture of reaction as well as data below:
also what would the limoting reagent be? magnesium?
[Actual moucular massused img Acinal amount im mon Reagents gi moi Magnesium 24.305 51.4. 2.1 Bromöbenzene 157.01 410.2 2.61 methyl Benzoate 136.16 141.5 1.04 mmol ether -Br + Mg MgBr Bromobenzene Phenyimagnesium bromide Methyl benzoate MgBr OH HCI +...
Can you please provide a reaction mechanism for the following
reaction and explain what is happening at each step
A multistep synthesis demonstrating Grignard and Friedel Crafts reactions Part I and II Br MgBr Mg l21 diethyl ether bromobenzene MgBr 1, mix and heat OH 2, H30 benzophenone triphenylmethanol Part IV OCH3 H2so4 OCH3 anisole methoxytetraphenylmethane triphenylmethanol hane from a multistep reaction
MgBr + anhydrous ether Mg MW: 24.31 Grignard reagent MW: 157.02 R-X + Mg - R-X + Mga Single Electron Transfer (SET) R-X - R + X- R + Mg - RM RMG + X- RMX Ph MgBr Ph Lo MaBr H (Ph)3COH Pn H20 MW:260.34 Grignard reaction • Volume of bromobenzene is 4.5 mL. • Density of bromobenzene is 1.5 g/ml • Mass of benzophenone is 6.75g • We assume 65% yield of the product (triphenylmethanol) was obtained in...
What is the theoretical yield and the percent yield of this
Grignard reaction which converts phenyagnesiumbromide into
triphenylmethanol?
actual yield of final product is 0.00958grams
also would the limiting reagent be magnesium??
Reagent Amountured maghlesinm 51.4 mg Bromo benzene 4.10.2 2 mg methyl benzoatel 141.5 mg
The weight of triphenylmethanol is 0.060g
QUESTIONS 1. (4 Points) What is the theoretical yield (in grams) and percent yield of your triphenyl- methanol product in this experiment? EXPERIMENTAL PROCEDURE All glassware used in a Grignard reaction must be scrupulously dried. Dry the following glassware in an oven at 110°C for at least 20 minutes: drying tube, Claisen adapter, 8 mL conical vial, 5 mL conical vial, air condenser, glass stirring rod, and a magnetic spinvane. DO NOT PLACE O-RINGS...
Compound
Mol. Weight (g)
mmol
amount
(in g or mL)
melting point (°C)
Density
(g/mL)
Ref.
bromobenzene
157.01
4.00
0.628
n/a
1.491
1
magnesium powder
120.37
4.00
0.097
n/a
n/a
2
ethyl ether
74.12
n/a
5.00
n/a
0.706
3
benzophenone
182.22
3.8
0.692
47-51
n/a
4
triphenylmethanol
260.33
160-163
n/a
5
5% HCl (aq.)
36.46
n/a
2.00
n/a
n/a
6
With this information, what is the theoretical yield of
triphenylmethanol?
HO Br Mg MgBr ether ether bromobenzene benzophenone triphenylmethanol
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