H H2C CH₃ 2. Draw the structure of the following compounds. a. 3-methyl-3 phenylbutanal H₂ b. 3-Oxobutanoic acid c....
HO CHI 2. Draw the structure of the following compounds. a. 3-methyl-3phenylbutanal b. 3-Oxobutanoic acid c. 1,3-Cyclohexanedione 3. Show how you can synthesize the compound below by Witting reaction. HEC HEC
1. Draw structures for the following compounds: a) l-ethyl-2-methylcyclohexane b) 4-methyl hexanal c) N-N-dimethylpentanamide 2. What is the product of this bromination reaction? H2C-CH=CH-CH2-CH2-CH3 + Br2 3. What is the product of this oxidation reaction? OH H3C-CH-CH-CHg 10 Сн, 4. Consider the esterification reaction reaction below: H, SO H3C-CH2-CH2-CH2-C-OH + H2C-CH2-OH What organic compound is the reactant on the left? What organic compound is the reactant on the right? Draw the product of the reaction. What type of organic compound...
Two students are given 3-oxobutanoic acid below and asked to prepare 2-methyl-3-oxobutanoic acid. The first student recognizes this as the first step of the acetoacetic ester synthesis. He treats the starting material with sodium methoxide followed by methyl iodide. He isolates compound A, but 1H NMR analysis shows this is not the desired material. Elemental analysis shows it has the same molecular formula as the 2-methyl-3-oxobutanoic acid. What is compound A? The second student recognizes an extra step is needed...
1. Name the following compounds, IUPAC or Common. ин H₂C CH₂ 2. Draw the structure of the following compounds. a. 3-methyl-3phenylbutanal
Design a synthesis of 4-methyl-2-pentyne from 3-methyl-1-butene. H2C Part 1 out of S Choose the best option for the immediate precursor to the target molecule. H3C HI A Br Br Br H Br E H,C- H 3 attempts left Check my work Click the "draw structure" button to launch the drawing utility. Give the structure corresponding to 4-tert-butyl-5-decyne. draw structure Be sure to answer all parts. Give the IUPAC name for the following compound. (select) (select) Be sure to answer...
Q11. The correct structure of trans-1-bromo-3-methyl cyclopentane is ...Br (A) (B) -Br Br (C) (D) *Br Q12. The correct order of increasing stability for the following conformations is CH, H Н. Н H H H CH2CH3 H Н CH,CH CH CH3CH2 CH H2C CH, H CH, I II III (A) III < III (C) II <I<III (B) I<III <II (D) I< II < III Q13. Identify the relationship between the following two Newman projections. CH, H НАС. H Н;С. Н...
PROBLEM 7.4 Give IUPAC names for the following compounds: (a) H3C CHз ачи. CH3 H2C=CHCHCCH3 3-Methyl hex-3-ene CH₃ pent-l-ene (c) CH3 CH3 CH2CH=CHCHCH=CHCHCH3 4,7 Dimethyl- octa-2,5-diene (d) CH3CHCH2CH3 CH3CH2CH2CH=CHCHCH2CH3 6-Ethyl-7-methyl non-y-ene
3. Of the following structures, how many are classified "? H2C H3C CH2CH3 H3C CH=CH2 H CH Cl Cl Cl CH=CH2 H3C H2CH3 A) 1 B) 2 C) 3 D) 4 E) 5 How many stereogenic centers are present in the following molecule? CHCHCH3 OH H3C A) 1 B) 2 C) 4 D) 6 E) 8
Determine and draw the structures of compounds A and B only. Do not draw the structure of compound X. Place each structure above its letter. HINT: Both A and B are esters. (10 points) LDA 1. compound B 1. NaOEt A х -78 °C 2. H30* OET 2. CH Br A B Create OscerSketch Answer 7 Draw a curved arrow mechanism for the following acid-catalyzed isomerization reaction. You must show all intermediates. (10 points) 1 H H20 Create OscerSketch Answer...
g) Which structure is Z-2-bromo-3-methyl-2-pentene? CH3 H3C CH2CH3 H C=C CH-CH,CH, CH3 CH3 Вісн. C=C CH3 Br н Br | BÁ CHẠCH, C=C CH, CHỊCH, 10) Which compounds contain stereocenters? D) 1-chloropentane II) 2-chloropentane III) 3-chloropentane IV) 1,2-dichloropentane 11) Aspartame is an artificial, non-saccharide sweetener. It is made from two amino acids phenylalanine (methyl ester) and aspartic acid. Both aminoacids have one stercocenter. Both stereocenters have S-stereoconfiguration. Which of the two structures is aspartame? H2N-C-C-N-C-0-0 CH2 CH2 c=0 HO HO...