(a)
Interpretation:
The validation of the fact that the given keto ester is formed by Dieckmann condensation has to be predicted and the structure of starting diester if applicable has to be drawn.
Concept introduction:
An internal condensation reaction of a diester forms a ring compound. Such an internal claisen cyclization is known as a Dieckmann condensation reaction or more commonly it is known as a Dieckmann cyclization. This reaction is useful in the formation of five and six membered rings. Rings which are smaller than five carbon atoms or larger than six carbon atoms are rarely formed by this reaction.
(b)
Interpretation:
The validation of the fact that the given keto ester is formed by Dieckmann condensation is to be predicted and the structure of starting diester if applicable is to be drawn.
Concept introduction:
An internal condensation reaction of a diester forms a ring compound. Such an internal claisen cyclization is known as a Dieckmann condensation reaction or more commonly it is known as a Dieckmann cyclization. This reaction is useful in the formation of five and six membered rings. Rings which are smaller than five carbon atoms or larger than six carbon atoms are rarely formed by this reaction.
(c)
Interpretation:
The validation of the fact that the given keto ester is formed by Dieckmann condensation is to be predicted and the structure of starting diester if applicable is to be drawn.
Concept introduction:
An internal condensation reaction of a diester forms a ring compound. Such an internal claisen cyclization is known as a Dieckmann condensation reaction or more commonly it is known as a Dieckmann cyclization. This reaction is useful in the formation of five and six membered rings. Rings which are smaller than five carbon atoms or larger than six carbon atoms are rarely formed by this reaction.
(d)
Interpretation:
The validation of the fact that the given keto ester is formed by Dieckmann condensation is to be predicted and the structure of starting diester if applicable is to be drawn.
Concept introduction:
An internal condensation reaction of a diester forms a ring compound. Such an internal claisen cyclization is known as a Dieckmann condensation reaction or more commonly it is known as a Dieckmann cyclization. This reaction is useful in the formation of five and six membered rings. Rings which are smaller than five carbon atoms or larger than six carbon atoms are rarely formed by this reaction.

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Chapter 22 Solutions
EP ORGANIC CHEMISTRY -MOD.MASTERING 18W
- : Draw the structure of valylasparagine, a dipeptide made from valine and asparagine, as it would appear at physiological pH. Click and drag to start drawing a structure. P Darrow_forwardDraw the Haworth projection of α-L-mannose. You will find helpful information in the ALEKS Data resource. Click and drag to start drawing a structure. : ཊི Х Darrow_forwardDraw the structure of serine at pH 6.8. Click and drag to start drawing a structure. : d كarrow_forward
- Take a look at this molecule, and then answer the questions in the table below it. CH2OH H H H OH OH OH CH2OH H H H H OH H H OH H OH Is this a reducing sugar? yes α β ロ→ロ no ☑ yes Does this molecule contain a glycosidic bond? If you said this molecule does contain a glycosidic bond, write the symbol describing it. O no 0+0 If you said this molecule does contain a glycosidic bond, write the common names (including anomer and enantiomer labels) of the molecules that would be released if that bond were hydrolyzed. If there's more than one molecule, separate each name with a comma. ☐arrow_forwardAnswer the questions in the table below about this molecule: H₂N-CH₂ -C—NH–CH–C—NH–CH—COO- CH3 CH CH3 What kind of molecule is this? 0= CH2 C If you said the molecule is a peptide, write a description of it using 3-letter codes separated ☐ by dashes. polysaccharide peptide amino acid phospolipid none of the above Хarrow_forwardDraw a Haworth projection of a common cyclic form of this monosaccharide: CH₂OH C=O HO H H -OH H OH CH₂OH Click and drag to start drawing a structure. : ☐ Х S '☐arrow_forward
- Nucleophilic Aromatic Substitution 22.30 Predict all possible products formed from the following nucleophilic substitution reactions. (a) (b) 9 1. NaOH 2. HCI, H₂O CI NH₁(!) +NaNH, -33°C 1. NaOH 2. HCl, H₂Oarrow_forwardSyntheses 22.35 Show how to convert toluene to these compounds. (a) -CH,Br (b) Br- -CH3 22.36 Show how to prepare each compound from 1-phenyl-1-propanone. 1-Phenyl-1-propanone ہتی. Br. (b) Br (racemic) 22.37 Show how to convert ethyl benzene to (a) 2,5-dichlorobenzoic acid and (b) 2,4-dichlorobenzoic acid. 22.38 Show reagents and conditions to bring about the following conversions. (a) 9 NH2 8 CO₂H NH2 CO₂Et (d) NO2 NH2 S NH₂ NO2 CHS CHarrow_forwardive the major organic product(s) of each of the following reactions or sequences of reactions. Show all rant stereochemistry. [10 only] A. B. NaN3 1. LiAlH4, ether Br 2. H₂O CH3 HNO3 H₂/Pt H₂SO ethanol C. 0 0 CH3CC1 NaOH NHCCH AICI H₂O . NH₂ CH3CH2 N CH2CH3 + HCI CH₂CH 3 1. LIAIH, THE 2. H₂Oarrow_forward
- Calculate the stoichiometric amount of CaCl2 needed to convert all of the CuSO4 into CuCl2.arrow_forwardH CH تنی Cl 1. NaCN, DMF 2. LIAIH4, ether H₂O pyridine N NH₂ 5 CH H 1 HNO, H₂SO 2. Nal NH2 Br Br HNO₂ CuCl H₂SO HCI CH3 H3C NN HSO KCN CuCN 1. HNO₂, H₂SO O₂N NH2 2. OH ཀ་ལས། །ས་ཅན་ :i་དེ་མ་མ་སེ་ NH₂ CH3 1. HNO₂, H₂SO4 2. H3PO₂ 1 HNO2, H2SO4 2. Nalarrow_forwardive the major organic product(s) of each of the following reactions or sequences of reactions. Show all rant stereochemistry. [10 only] A. B. NaN3 1. LiAlH4, ether Br 2. H₂O CH3 HNO3 H₂/Pt H₂SO ethanol C. 0 0 CH3CC1 NaOH NHCCH AICI H₂O . NH₂ CH3CH2 N CH2CH3 + HCI CH₂CH 3 1. LIAIH, THE 2. H₂Oarrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningLiving By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHER


