23. a) Write a reasonable mechanism, using good curved arrow
notation, for the aldol condensation of propanal.
b) Show how you would prepare the following molecule from
1-propanol, formaldehyde, and ethylamine as the only source of
carbon and nitrogen, using any necessary organic or
inorganic reagents
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23. a) Write a reasonable mechanism, using good curved arrow notation, for the aldol condensation of...
24. a) Write a reasonable mechanism, using good arrow notation,
for the bromination of phenol to p-bromophenol. Show all the
resonance forms of the intermediate and circle the major
contributing resonance structure.
b) Prepare acetanilide from benzene and acetic acid as the source
of all carbons, and any
inorganic or organic reagents necessary
24. a) Write a reasonable mechanism, using good arrow notation, for the bromination of phenol to p-bromophenol. Show all the resonance forms of the intermediate and circle...
b) Show how you would prepare the following molecule from
1-propanol, formaldehyde, and ethylamine as the only source of
carbon and nitrogen, using any necessary organic or
inorganic reagents.
b) Show how you would prepare the following molecule from 1-propanol, formaldehyde, and ethylamine as the only source of carbon and nitrogen, using any necessary organic or inorganic reagents. он H H NH2
Propose a reasonable mechanism for the following transformation,
starting from aniline, using curved arrow notation.
4. Propose a reasonable mechanism for the following transformation, starting from aniline, using curved arrow notation. (3 pts) ОН NH2 NaNO2, HCI 0 °C
1. Draw the complete curved-arrow mechanism for the base-catalyzed aldol condensation to form dehydrorheosmin (or dehydrozingerone) from acetone and 4-hydroxybenzaldehyde (or vanillin). (2 points)
10) Using the curved arrow notation, write a mechanism for the following reaction of an enamine with an alky halide. Br- 2C-O-CHCH, Du-CH₂ CH3
1.2.3.4.5.6.7.8.Show the curved arrow mechanism for the reaction between ethoxide and methanol to give ethanol and the methoxide ion. 1st attempt Jual See Periodic Table See Hint OH-Ö: Add the missing curved arrow notation.The carbon-metal bond in organometallic Grignard reagents exhibits significant covalent character. However, we can treat these compounds as electron-rich carbanions because of the large difference in electronegativity between carbon and magnesium. These reagents are great to form carbon-carbon bonds but must be kept in an anhydrous environment...
Using the curved arrow notation, write a stepwise mechanism to rationalize the formation of each product in the following reaction (you may need the back of this sheet).
Using the curved arrow notation write the stepwise mechanism of the following tautomerizations under either acidic or basic conditions. Make sure to indicate which tautomer form is most stable. a. (E)-4-hydroxy-5-methylhex-3-en-2-one b. octahydro-1Hisoindol-1-one c. 9H-purin-6-amine d. (Z)-N-ethylisobutyrimidic acid 52.
Using the curved arrow notation write the stepwise mechanism of the following tautomerizations under either acidic or basic conditions. Make sure to indicate which tautomer form is most stable. a. (E)-4-hydroxy-5-methylhex-3-en-2-one b. octahydro-1Hisoindol-1-one c. 9H-purin-6-amine d. (Z)-N-ethylisobutyrimidic acid 52.
A. Products and Mechanism 1. Draw a detailed step-wise mechanism using curved arrow notation for the following reaction: EtO E t 1. xs PhMgBr 2. HCI, H,0
Using appropriate curved arrow notation, draw a stepwise mechanism for the reaction. Br^- HBr H^+ Br^+ H_2O