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5. The first step in the polymerization of 2-methyl- 2-oxazoline involves a substitution reaction with methyl p-tol...
1.The main product of the reaction between p-cresol and Br2 / FeBr3 is: 3-Bromo-4-methyl phenol 2-Bromo-4-methyl...
1.The main product of the reaction between p-cresol and Br2 / FeBr3 is: 3-Bromo-4-methyl phenol 2-Bromo-4-methyl phenol 2-methyl-4-bromine phenol 3-methyl-4-bromine phenol 2.Which of the following compounds is the least reactive in the nucleophilic substitution with NaOH? 2,4-dinitrochlorobenzene m-nitrochlorobenzene o-nitrochlorobenzene 3,5-dinitrochlorobenzene 3.What is the mechanism (s) for the reaction of 4-bromo-1-nitrobenzene with sodium hydroxide to form 4-nitrophenol? bimolecular nucleophilic substitution (Sn2) aromatic nucleophilic substitution by addition-elimination aromatic nucleophilic substitution by elimination-addition aromatic electrophilic substitution 4.which of the following is the correct...
Questions 2-10 please!! 1) A substitution reaction is: [2] a) A reaction during which an OH...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
5. A hypothetical mixture of 10 monomers (AB) undergoes step-growth polymerization The following table presents a...
5. A hypothetical mixture of 10 monomers (AB) undergoes step-growth polymerization The following table presents a possible picture of how reaction might appear. (Note that A and B represent two different functional groups and ab is the product of their reaction with each other) Time Molecular species present DP AB AB AB AB AB AB AB AB AB AB 0 |АВ АВ АВ АВ АВ АВ АВ АВ АВ АВ T1 AbaB AbaB AbaB AB AB AB AB 12 AbabaB...
for this experiment i got a yield of 0.02g. what is the theoretical and percentage yield?...
for this experiment i got a yield of 0.02g. what is the
theoretical and percentage yield?
STUDENT HANDOUT Synthesis of poly(2-methoxy-542-ethylhexyloxy-1.4-phenyle Purpose of the Experiment ylhexyloxy-1.4-phenylenevinylene (MEH-PPV) The purpose of this experiment is 10 bis bromomethyl)-1-methoxy-4-2- experiment is to synthesize a polymer using a Gilch polymerization of 2,5 methyl)-1-methoxy-4-(2-ethylhexyloxybenzene, to investigate the polymer's photophysica properties, and to understand the mechanism of the polymerization reaction Introduction Polyphenylene vinylenes) or PPVs are highly luminescent polymers that are used for a variety of...
5) Rationalizing the stereochemical outc ome of this reaction requires an understanding of the f borohydride...
5) Rationalizing the stereochemical outc ome of this reaction
requires an understanding of the f borohydride borohydride lcohol.
An three-dimensional structure of benzoin and the general reaction
mechanism o reductions. As shown previously (10-1), the usual mode
of activation tor reduction occurs via an intermolecular H-bond
between the carbonyl group and an a intramolecular H-bond can
stabilize the lowest-energy conformation of benzoin (pre and serve
to activate the carbonyl for reduction, thus generating the
lowest-energyt state. a) Draw the lowest-energy,...
use the notes provided to help answer the question above. will rate well The second step...
use the notes provided to help answer the question
above. will rate well
The second step of the synthesis transformation of the chlorosulfonyl functional group into a sulfonamide) is an example of a a. Nucleophilic displacement (substitution) b Elimination C. Electrophilic aromatic substitution d. Acid hydrolysis Esterification e. THE SULFONIC ACID GROUP AND ITS DERIVATIVES Sulfonic acids are organic analogs of sulfuric acid, a very strong acid. They are highly corrosive, react vigorously with water, and can cause skin bums....
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
____ 1. The diagram below represents serine, a polar, uncharged amino acid. Which functional group gives...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
5. A hypothetical mixture of 10 monomers (AB) undergoes step-growth polymerization The following table presents a possible picture of how reaction might appear. (Note that A and B represent two different functional groups and ab is the product of their reaction with each other) Time Molecular species present DP AB AB AB AB AB AB AB AB AB AB 0 |АВ АВ АВ АВ АВ АВ АВ АВ АВ АВ T1 AbaB AbaB AbaB AB AB AB AB 12 AbabaB...
for this experiment i got a yield of 0.02g. what is the
theoretical and percentage yield?
STUDENT HANDOUT Synthesis of poly(2-methoxy-542-ethylhexyloxy-1.4-phenyle Purpose of the Experiment ylhexyloxy-1.4-phenylenevinylene (MEH-PPV) The purpose of this experiment is 10 bis bromomethyl)-1-methoxy-4-2- experiment is to synthesize a polymer using a Gilch polymerization of 2,5 methyl)-1-methoxy-4-(2-ethylhexyloxybenzene, to investigate the polymer's photophysica properties, and to understand the mechanism of the polymerization reaction Introduction Polyphenylene vinylenes) or PPVs are highly luminescent polymers that are used for a variety of...
5) Rationalizing the stereochemical outc ome of this reaction
requires an understanding of the f borohydride borohydride lcohol.
An three-dimensional structure of benzoin and the general reaction
mechanism o reductions. As shown previously (10-1), the usual mode
of activation tor reduction occurs via an intermolecular H-bond
between the carbonyl group and an a intramolecular H-bond can
stabilize the lowest-energy conformation of benzoin (pre and serve
to activate the carbonyl for reduction, thus generating the
lowest-energyt state. a) Draw the lowest-energy,...
use the notes provided to help answer the question
above. will rate well
The second step of the synthesis transformation of the chlorosulfonyl functional group into a sulfonamide) is an example of a a. Nucleophilic displacement (substitution) b Elimination C. Electrophilic aromatic substitution d. Acid hydrolysis Esterification e. THE SULFONIC ACID GROUP AND ITS DERIVATIVES Sulfonic acids are organic analogs of sulfuric acid, a very strong acid. They are highly corrosive, react vigorously with water, and can cause skin bums....
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
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