Homework Answers
Alcohol
is never formed with reaction of acids with grignard reagents. Hope
concept gets clear. Comment for doubts.
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Grignard reagents are used to make C-C new bonds. Their reaction with carbonyl compound leads to...
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepa...
i need help with the prelab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
One of the most important uses for Grignard reagents is their addition to carbonyl compounds to...
One of the most important uses for Grignard reagents is their addition to carbonyl compounds to give new carbon-carbon bonds. In this reaction, the carbon of the organometallic compound acts as a nucleophile to add to the positive carbon of the carbonyl forming an alkoxide ion intermediate. Aqueous acid is used in the second step to protonate the alkoxide ion and form the product alcohol. Draw the structure of the product(s) of step 1 when the following compound reacts with...
Grignard and organolithium reagents are powerful bases. Because of this, they cannot be used as nucleophiles on compound...
Grignard and organolithium reagents are powerful bases. Because of this, they cannot be used as nucleophiles on compounds which contain acidic hydrogens. If they are use, they will act as a base and deprotonate the acidic hydrogen rather than act as a nucleophile and attack the carbonyl. A partial list of functional groups which cannot be used are: alcohols, amides, 1o amines, 2o amines, carboxylic acids, and terminal alkynes. Determine the product of a reaction in which one of the...
Problem 1. Synthesize the following alkene through the Wittig reaction of a carbonyl compound and a...
Problem 1. Synthesize the following alkene through the Wittig reaction of a carbonyl compound and a Wittig reagent. 2,3-diphenyl-2-butene 2. Predict the products of the following reactions. Casco CHCH.CHCH, CHCH.CH но ats ОО 2.0 CH,CHACHCH,CHCHOCH.CH, CH 3. A useful and general method for the synthesis of alcohols is the addition of Grignard reagents to carbonyl compounds. Show what Grignard reagent and what carbonyl compound you would start with to prepare the alcohol below. List all possibilities. 2-methyl--butanol 2-METHYL-2- BOTANIC
8. Grignard and or ganolithium reagents are powerful bases. Because of this, they cannot be used as nucleophiles on...
8. Grignard and or ganolithium reagents are powerful bases. Because of this, they cannot be used as nucleophiles on compounds which contain acidic hydrogens. If they are use, they will act as a base and deprotonate the acidic hydrogen rather than act as a nucleophile and attack the carbonyl. A partial list of functional groups which cannot be used are: alcohols, amides, 1 amines, 2 amines, carboxylic acids, and terminal alkynes. Determine the product of a reaction in which one...
please give correct answers to these 5 questions with explanations, thankyou Which solvent(s) is required for...
please give correct answers to these 5 questions with
explanations, thankyou
Which solvent(s) is required for a nucleophilic addition reaction involving a Grignard reagent and a carbonyl compound? What is the primary organic product of the following reaction? н* Select one: +H2N. All reactions must be carried out in water All reactions must be carried out in dry solvents (free of water, for example diethyl ether). Select one There will be no reaction An initial reaction must be carried in...
help with 23 HAPTER 14: ORGANOMETALLIC COMPOUNDS TWO common solvents for Grignard reagents are: 1) ethanol...
help with 23
HAPTER 14: ORGANOMETALLIC COMPOUNDS TWO common solvents for Grignard reagents are: 1) ethanol and diethyl ether. 2) diethyl ether and tetrahydrofuran (THF). 3) tetrahydrofuran (THF) and toluene. 4) water and ethanol. What is the product of the following reaction? CH, CH. CHCH.CH - ether 2) 2-ethyl-1-pentanol 2) 2-ethyl-1-butanol 3) 3-pentanel 4) 3-aethyl-1-pentanc: The reaction of benzyl sagnesius bromide (C.HSCHMB) with acetaldehyde (CHC40) followed by hydrolysis yields: 1) 1-phenyl-1-propanol 2) 1-phenyl-2-propanol 3) 2-phenyl-2-propanel 4 .-ghen -propane: mo synthesize...
Can you help me identify reagent (i), Compound 8 and Compound 12 in the reaction scheme?...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
4. List two different sets of reagents (each set consisting of a carbonyl compound and a...
4. List two different sets of reagents (each set consisting of a carbonyl compound and a Grignard reagent) that could be used to synthesize each of the following secondary alcohols. [4 points each] 3H 5. Reaction of cyclohexanone with ethylene glycol in the presence of an acid catalyst gives the cyclic acetal shown. Propose a mechanism for this reaction. [8 points]
This is for the Grignard Reaction laboratory. Please help me answer this question, much appreciated. 1....
This is for the Grignard Reaction laboratory. Please help me answer this question, much appreciated. 1. If a student performing Laboratory with Grignard reaction accidently used acetone as the reaction solvent instead of diethyl ether, what would the major organic product(s) be? Draw the structure of the product(s) (no mechanism necessary). b. What was the purpose of adding magnesium sulfate in this experiment? c. Grignard reagents react with both aldehyde and ketone functional groups. How do you predict the reaction...
i need help with the prelab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
One of the most important uses for Grignard reagents is their addition to carbonyl compounds to give new carbon-carbon bonds. In this reaction, the carbon of the organometallic compound acts as a nucleophile to add to the positive carbon of the carbonyl forming an alkoxide ion intermediate. Aqueous acid is used in the second step to protonate the alkoxide ion and form the product alcohol. Draw the structure of the product(s) of step 1 when the following compound reacts with...
Problem 1. Synthesize the following alkene through the Wittig reaction of a carbonyl compound and a Wittig reagent. 2,3-diphenyl-2-butene 2. Predict the products of the following reactions. Casco CHCH.CHCH, CHCH.CH но ats ОО 2.0 CH,CHACHCH,CHCHOCH.CH, CH 3. A useful and general method for the synthesis of alcohols is the addition of Grignard reagents to carbonyl compounds. Show what Grignard reagent and what carbonyl compound you would start with to prepare the alcohol below. List all possibilities. 2-methyl--butanol 2-METHYL-2- BOTANIC
8. Grignard and or ganolithium reagents are powerful bases. Because of this, they cannot be used as nucleophiles on compounds which contain acidic hydrogens. If they are use, they will act as a base and deprotonate the acidic hydrogen rather than act as a nucleophile and attack the carbonyl. A partial list of functional groups which cannot be used are: alcohols, amides, 1 amines, 2 amines, carboxylic acids, and terminal alkynes. Determine the product of a reaction in which one...
please give correct answers to these 5 questions with
explanations, thankyou
Which solvent(s) is required for a nucleophilic addition reaction involving a Grignard reagent and a carbonyl compound? What is the primary organic product of the following reaction? н* Select one: +H2N. All reactions must be carried out in water All reactions must be carried out in dry solvents (free of water, for example diethyl ether). Select one There will be no reaction An initial reaction must be carried in...
help with 23
HAPTER 14: ORGANOMETALLIC COMPOUNDS TWO common solvents for Grignard reagents are: 1) ethanol and diethyl ether. 2) diethyl ether and tetrahydrofuran (THF). 3) tetrahydrofuran (THF) and toluene. 4) water and ethanol. What is the product of the following reaction? CH, CH. CHCH.CH - ether 2) 2-ethyl-1-pentanol 2) 2-ethyl-1-butanol 3) 3-pentanel 4) 3-aethyl-1-pentanc: The reaction of benzyl sagnesius bromide (C.HSCHMB) with acetaldehyde (CHC40) followed by hydrolysis yields: 1) 1-phenyl-1-propanol 2) 1-phenyl-2-propanol 3) 2-phenyl-2-propanel 4 .-ghen -propane: mo synthesize...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
4. List two different sets of reagents (each set consisting of a carbonyl compound and a Grignard reagent) that could be used to synthesize each of the following secondary alcohols. [4 points each] 3H 5. Reaction of cyclohexanone with ethylene glycol in the presence of an acid catalyst gives the cyclic acetal shown. Propose a mechanism for this reaction. [8 points]
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