Homework Answers
Arrow D is the correct angle at which nucleophile attack.
Nucleophile attack from D side and oxygen atoms take pi electrons simultaneously to form a tetraheral intermediate.
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Which collision angles between the nucleophile and electrophile can result in a new Nucleophile-carbon bond? indicates...
Which is the nucleophile and which is the electrophile of this Biginelli reaction? Your Biginelli reaction...
Which is the nucleophile and
which is the electrophile of this Biginelli reaction?
Your Biginelli reaction is performed under Lewis-acidic conditions. One possible step in the synthesis, as shown in the lab manual, is the Knovenagel condensation between benzaldehyde and ethyl acetoactate: Ob el con OEt 0OET Consider the mechanism of the Knovenagel reaction, and the reaction conditions. Then, from the list of species shown below, choose the electrophile and the nucleophile that would be involved in the carbon-carbon bond-forming...
Match the following answers: A. Any species that can accept electrons Electrophile B Polar covalent bond...
Match the following answers: A. Any species that can accept electrons Electrophile B Polar covalent bond A bond between two atoms differing in electronegativity by 0.3 - 1.4 C. Bronstead acid D. A compound that can donate a proton Electronegativity E. The ability of an atom to attract the shared electrons in a covalent bond Nucleophile F. Covalent bond Any species that can donate electrons G. Bronstead base A bond between two atoms differing in electronegativity by < 0.3 H.Jonic...
Which of the following statements about carbonyl groups is true? The bond angles about the carbon...
Which of the following statements about carbonyl groups is true? The bond angles about the carbon of a carbonyl group are 109.5° The carbon atom of a carbonyl group is nucleophilic. The oxygen atom of a carbonyl group is electron-poor The carbonyl group's double bond consists one s and one p bond. The carbon atom of a carbonyl group is sp-hybridized.
which of the following best justifies your choice of carbon electrophile? drives → XCO Question 40...
which of the following best justifies your choice of carbon
electrophile?
drives → XCO Question 40 Which of the following best justifies your choice of carbon electrophile? A.HBr BH H CH Li D. H CH₃ HH HH HH HH Choose ALL that apply. Resonance Sterics Inductive effects Class of carbon Previous No new data to save. L
In an addition reaction to an alkene, the pi bond plays the role of nucleophile electrophile...
In an addition reaction to an alkene, the pi bond plays the role of nucleophile electrophile leaving group Select the product that results from the anti-Markovnikov/syn addition of H and OH to the following alkene. I II III IV What is the IUPAC name for the molecule shown below? 3-(l-butynyl)pentane 5-ethyl-3-octyne 3-ethyl-4-heptyne 5-ethyl-3-heptyne What would be the major product obtained from the addition of HBr to 2-methylpentene? 1-bromo-2-methylpentane 2-bromo-2-methylpentane 3-bromo-2-methylpentane 1-bromo-2-methylpentene What is the reaction product when 4-methyl-2-pentyne is reacted...
which had the weakest bond between its atoms Br2 Cl2 HBr HCl? 11. A) Calculate the...
which had the weakest bond between its atoms Br2 Cl2 HBr
HCl?
11. A) Calculate the heat of the reaction given the bond dissociation energies. (5 pts) (CHs) C-CI + HCI Cl-CI (CHs) C-H + Give the structure of 3-Methylpentane (3 pts) 12. For the reaction below identify the nucleophile and the electrophile: 8. 9. The following reaction can be classified as a (3 pts) ecid eatalyst d) oxidation a) Addition c) substitution 6) rearrangement atoms?
1) Hydration of the carbon-carbon double bond in alpha-pinene can in principle result in four dif...
please explain!
1) Hydration of the carbon-carbon double bond in alpha-pinene can in principle result in four different products (see chart below). However, the reaction sequence you performed is highly regioselective and stereospecific. Draw the mechanism of the hydroboration reaction (the first step of the sequence), and explain which product is expected and why (10 points). CH3 H3C CH3 (1S-()a-pinene (1) 3- CH, он CH3 CH3 isopinocampheol (2) mp 51-53 °C neoisopinocampheol (3) mp 45-47 °C CH3 он H3C CH3...
23.1 Predict the aldol reaction product. The new C-C bond is formed between the a-carbon of...
23.1 Predict the aldol reaction product. The new C-C bond is formed between the a-carbon of one molecule and carbonyl of the other. 23.1 Predict the aldol reaction product. ОНО کین۔ مین لی۔ (3) (b) (b) H0 HO (2) HO H0
please answer numbers 12-15 and justify answers. Which statement regarding a σ bond between two carbon...
please answer numbers 12-15 and justify answers.
Which statement regarding a σ bond between two carbon atoms linked by a single bond is FALSE? a. The region of electron density lies along the bond axis connecting the nuclei of the 12. two atoms. b. The bond can be described by the overlap of sp hybrid orbitals from each atom c· The bond can be described by the overlap of sp2 hybrid orbitals from each atom. d. The bond can be...
6. The drawing shows a collision between two pucks on an air-hockey table. Puck A has...
6. The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.21 kg and is moving along the x axis with a velocity of 7.00 m/s. It makes a collision with puck B, which has a mass of 0.42 kg and is initially at rest. After the collision, the two pucks fly apart with angles as shown in the drawing (a 66° and B 40°). Find the final speed of puck B....
Which is the nucleophile and
which is the electrophile of this Biginelli reaction?
Your Biginelli reaction is performed under Lewis-acidic conditions. One possible step in the synthesis, as shown in the lab manual, is the Knovenagel condensation between benzaldehyde and ethyl acetoactate: Ob el con OEt 0OET Consider the mechanism of the Knovenagel reaction, and the reaction conditions. Then, from the list of species shown below, choose the electrophile and the nucleophile that would be involved in the carbon-carbon bond-forming...
Match the following answers: A. Any species that can accept electrons Electrophile B Polar covalent bond A bond between two atoms differing in electronegativity by 0.3 - 1.4 C. Bronstead acid D. A compound that can donate a proton Electronegativity E. The ability of an atom to attract the shared electrons in a covalent bond Nucleophile F. Covalent bond Any species that can donate electrons G. Bronstead base A bond between two atoms differing in electronegativity by < 0.3 H.Jonic...
Which of the following statements about carbonyl groups is true? The bond angles about the carbon of a carbonyl group are 109.5° The carbon atom of a carbonyl group is nucleophilic. The oxygen atom of a carbonyl group is electron-poor The carbonyl group's double bond consists one s and one p bond. The carbon atom of a carbonyl group is sp-hybridized.
which of the following best justifies your choice of carbon
electrophile?
drives → XCO Question 40 Which of the following best justifies your choice of carbon electrophile? A.HBr BH H CH Li D. H CH₃ HH HH HH HH Choose ALL that apply. Resonance Sterics Inductive effects Class of carbon Previous No new data to save. L
In an addition reaction to an alkene, the pi bond plays the role of nucleophile electrophile leaving group Select the product that results from the anti-Markovnikov/syn addition of H and OH to the following alkene. I II III IV What is the IUPAC name for the molecule shown below? 3-(l-butynyl)pentane 5-ethyl-3-octyne 3-ethyl-4-heptyne 5-ethyl-3-heptyne What would be the major product obtained from the addition of HBr to 2-methylpentene? 1-bromo-2-methylpentane 2-bromo-2-methylpentane 3-bromo-2-methylpentane 1-bromo-2-methylpentene What is the reaction product when 4-methyl-2-pentyne is reacted...
which had the weakest bond between its atoms Br2 Cl2 HBr
HCl?
11. A) Calculate the heat of the reaction given the bond dissociation energies. (5 pts) (CHs) C-CI + HCI Cl-CI (CHs) C-H + Give the structure of 3-Methylpentane (3 pts) 12. For the reaction below identify the nucleophile and the electrophile: 8. 9. The following reaction can be classified as a (3 pts) ecid eatalyst d) oxidation a) Addition c) substitution 6) rearrangement atoms?
please explain!
1) Hydration of the carbon-carbon double bond in alpha-pinene can in principle result in four different products (see chart below). However, the reaction sequence you performed is highly regioselective and stereospecific. Draw the mechanism of the hydroboration reaction (the first step of the sequence), and explain which product is expected and why (10 points). CH3 H3C CH3 (1S-()a-pinene (1) 3- CH, он CH3 CH3 isopinocampheol (2) mp 51-53 °C neoisopinocampheol (3) mp 45-47 °C CH3 он H3C CH3...
23.1 Predict the aldol reaction product. The new C-C bond is formed between the a-carbon of one molecule and carbonyl of the other. 23.1 Predict the aldol reaction product. ОНО کین۔ مین لی۔ (3) (b) (b) H0 HO (2) HO H0
please answer numbers 12-15 and justify answers.
Which statement regarding a σ bond between two carbon atoms linked by a single bond is FALSE? a. The region of electron density lies along the bond axis connecting the nuclei of the 12. two atoms. b. The bond can be described by the overlap of sp hybrid orbitals from each atom c· The bond can be described by the overlap of sp2 hybrid orbitals from each atom. d. The bond can be...
6. The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.21 kg and is moving along the x axis with a velocity of 7.00 m/s. It makes a collision with puck B, which has a mass of 0.42 kg and is initially at rest. After the collision, the two pucks fly apart with angles as shown in the drawing (a 66° and B 40°). Find the final speed of puck B....
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