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Problem I: Give the approximate pka of the indicated H's in the following molecules: Problem...
Organic Chemistry 4. Below are two molecules, B and C. Explain the differences in pKa of...
Organic Chemistry
4. Below are two molecules, B and C. Explain the differences in pKa of the two molecules by drawing the conjugate base of molecule C and a resonance structure that would not be found in molecule B. Hint: Draw out the NO2 group. conjugate base of molecule C pKa- 29.5 molecule B NO2 pka= 8.6 molecule C 5. Below is the molecule Abilify, which is a top selling drug that is used to treat schizophrenia, bipolar disorder and...
6. For the following groups of molecules where the circled H's are the most acidic protons,...
6. For the following groups of molecules where the circled H's are the most acidic protons, circle the one with the lowest pka value. Η Η , ο Η Η, Η H, X.LH ΗΣ ΧΗ "H H H "" Η Η Η, Η ' o= Χ II II II XXH Η Η Η II ΠΗ Η Η Ι I Η Η. Η Η: Η Χο. Η нннн Λ. Η Ο Η
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK,...
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK, and explain your choice with an appropriate drawing. NH ZE OH оме Но, . Meo b) Ho Ho (Rationalize with a one sentence explanation.) d) Rank the following molecules in order from least acidic to most acidic. Rationalize your choice with an appropriate drawing.
Problem 8. The complete mechanism of acid-catalyzed hydrolysis of amides is asked here! [6 P) No arrows necessary....
Problem 8. The complete mechanism of acid-catalyzed hydrolysis of amides is asked here! [6 P) No arrows necessary. Only I limiting resonance structure, only 1 species per box. For your help, it is indicated in each step which particle is added or removed (in the forward direction). I II H* O + H H2O + Me N Ph Me Amide IV V H VI this goes off, but takes up Va proton H* a Ph OH H*
Problem 8. The...
Part II. Short Answer 1. Rank the following molecules from most acidic (1) to least acidic...
Part II. Short Answer 1. Rank the following molecules from most acidic (1) to least acidic (6) (CF,) CHOH CHỊC°CH (CHỊ) COH CH,CH,OH CH3COOH CH,OH 2. Circle the strongest base. он > 8 3. Circle the molecule with the lowest expected boiling point. non o el 4. Rank the following from 1 (most acidic) to 4 (least acidic). phenol p-nitrophenol methylphenol tert-butanol TTT SL
1 and 2 1. [04 pts.] Rank the following compounds in decreasing order of boiling point....
1 and 2
1. [04 pts.] Rank the following compounds in decreasing order of boiling point. ~ OH ~ ~ NH2 в со highest lowest 2. [03 pts. What is the maximum number of water molecules that in theory, the following molecule could hydrogen bond with? 4 to 4 Hot
Problem i: Indicate the stereo centers of stereo centers of the following natural produs natural product...
Problem i: Indicate the stereo centers of stereo centers of the following natural produs natural product (by placing a star next to them): Paclitaxel (also known as Taxol) Problem II: For each of the following molecules, indicate if it is chiral or not chiral Problem III: Draw the enantiomers of the following molecules: Problem IV The Elimination reaction allows the removal from a molecule of a leaving Hydrogen to generate a double bond. When that reaction is performe group (Br...
uestion 2 Rank these molecules in order of decreasing acidity [that is, most acidic first.] 1. CHCHCO2Н 2....
uestion 2 Rank these molecules in order of decreasing acidity [that is, most acidic first.] 1. CHCHCO2Н 2. CH-CHCO,н F 3. CH-CН-СО,Н 2 3 1 2> 1> 3 1> 2 3 3> 2 11 O 1>3> 2 Question 3 Which compound is the most acidic? Cl CI C Question 5 Which of the following molecules is the product of an aldol reaction? ОН HO HO IV ОН and IV Question 11 Which of the following contains an amide functional group?...
1-4 Name: Grade:_ /10 CHEM 213 Homework #5 Due Wednesday, October 30, 2019 Problem 1: Indicate...
1-4
Name: Grade:_ /10 CHEM 213 Homework #5 Due Wednesday, October 30, 2019 Problem 1: Indicate the stereo centers of the following natural product (by placing a star next to them): Paclitaxel (also known as Taxol) Problem II: For each of the following molecules, indicate if it is chiral or not chiral Problem III: Draw the enantiomers of the following molecules: Problem IV The Elimination reaction allows the removal from a molecule of a leaving group and a neighboring Hydrogen...
6. Four part problem, all about the molecule shown in part a.) a.) Name the following...
6. Four part problem, all about the molecule shown in part a.) a.) Name the following molecule. OH b.) The alcohol could be converted into which of the functional groups below, using a reaction we have covered in this course (i.e., in one step)? Circle all correct answers. i.) carboxylic acid ii.) alkene iii.) ether iv.) ester v.) aldehyde vi.) epoxide vii.) ketone viii.) acetal c.) How many signals would be seen in the 'C NMR spectrum of the alcohol...
Organic Chemistry
4. Below are two molecules, B and C. Explain the differences in pKa of the two molecules by drawing the conjugate base of molecule C and a resonance structure that would not be found in molecule B. Hint: Draw out the NO2 group. conjugate base of molecule C pKa- 29.5 molecule B NO2 pka= 8.6 molecule C 5. Below is the molecule Abilify, which is a top selling drug that is used to treat schizophrenia, bipolar disorder and...
6. For the following groups of molecules where the circled H's are the most acidic protons, circle the one with the lowest pka value. Η Η , ο Η Η, Η H, X.LH ΗΣ ΧΗ "H H H "" Η Η Η, Η ' o= Χ II II II XXH Η Η Η II ΠΗ Η Η Ι I Η Η. Η Η: Η Χο. Η нннн Λ. Η Ο Η
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK, and explain your choice with an appropriate drawing. NH ZE OH оме Но, . Meo b) Ho Ho (Rationalize with a one sentence explanation.) d) Rank the following molecules in order from least acidic to most acidic. Rationalize your choice with an appropriate drawing.
Problem 8. The complete mechanism of acid-catalyzed hydrolysis of amides is asked here! [6 P) No arrows necessary. Only I limiting resonance structure, only 1 species per box. For your help, it is indicated in each step which particle is added or removed (in the forward direction). I II H* O + H H2O + Me N Ph Me Amide IV V H VI this goes off, but takes up Va proton H* a Ph OH H*
Problem 8. The...
Part II. Short Answer 1. Rank the following molecules from most acidic (1) to least acidic (6) (CF,) CHOH CHỊC°CH (CHỊ) COH CH,CH,OH CH3COOH CH,OH 2. Circle the strongest base. он > 8 3. Circle the molecule with the lowest expected boiling point. non o el 4. Rank the following from 1 (most acidic) to 4 (least acidic). phenol p-nitrophenol methylphenol tert-butanol TTT SL
1 and 2
1. [04 pts.] Rank the following compounds in decreasing order of boiling point. ~ OH ~ ~ NH2 в со highest lowest 2. [03 pts. What is the maximum number of water molecules that in theory, the following molecule could hydrogen bond with? 4 to 4 Hot
Problem i: Indicate the stereo centers of stereo centers of the following natural produs natural product (by placing a star next to them): Paclitaxel (also known as Taxol) Problem II: For each of the following molecules, indicate if it is chiral or not chiral Problem III: Draw the enantiomers of the following molecules: Problem IV The Elimination reaction allows the removal from a molecule of a leaving Hydrogen to generate a double bond. When that reaction is performe group (Br...
uestion 2 Rank these molecules in order of decreasing acidity [that is, most acidic first.] 1. CHCHCO2Н 2. CH-CHCO,н F 3. CH-CН-СО,Н 2 3 1 2> 1> 3 1> 2 3 3> 2 11 O 1>3> 2 Question 3 Which compound is the most acidic? Cl CI C Question 5 Which of the following molecules is the product of an aldol reaction? ОН HO HO IV ОН and IV Question 11 Which of the following contains an amide functional group?...
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Name: Grade:_ /10 CHEM 213 Homework #5 Due Wednesday, October 30, 2019 Problem 1: Indicate the stereo centers of the following natural product (by placing a star next to them): Paclitaxel (also known as Taxol) Problem II: For each of the following molecules, indicate if it is chiral or not chiral Problem III: Draw the enantiomers of the following molecules: Problem IV The Elimination reaction allows the removal from a molecule of a leaving group and a neighboring Hydrogen...
6. Four part problem, all about the molecule shown in part a.) a.) Name the following molecule. OH b.) The alcohol could be converted into which of the functional groups below, using a reaction we have covered in this course (i.e., in one step)? Circle all correct answers. i.) carboxylic acid ii.) alkene iii.) ether iv.) ester v.) aldehyde vi.) epoxide vii.) ketone viii.) acetal c.) How many signals would be seen in the 'C NMR spectrum of the alcohol...
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