of aldol addition reactions is a major factor in the following mechanism Give a stepwise arrow...
HW 22: Enolates 1. Provide a detailed, stepwise mechanism for the base-catalyzed enolization (keto enol tautomerism) of acetaldehyde. 2. Provide the major organic product of the folowing reaction. 3. Provide the major organic product of the following reaction LDA 4. Which of the following ketones will give a positive iodoform test? A) 4-heptanone D) cyclohexanone B) 3-hexanone C)2-hexanone 5. Provide the major organic product of the following reaction. 6. Provide the structure of the major organic product which results when...
5. Draw a stepwise mechanism for the following variation of the aldol reaction, often called a nitro aldol reaction. NaOH CH3NO2 H2O
6. Give the major organic product from each mixed aldol reaction. Then explain why there conditions favor one product instead of generating a mixture of products. NaOH HO H CCI, NaOH HO a. LDA ht 7. Give the curved arrow mechanism for this reaction. he NaOH, H2O heat halla Τ Η 3. Give the major organic aldol product for each reaction, along with the dehydration product possible) formed after heating. NaOH heat H2O heat NaOH H2O ix heat NaOH HO
Draw a stepwise reaction mechanism with arrow pushing for the reaction below. chem 2 x G ketone 1. naoh 2.meoh X My Account l Chegg.com x V u.sg/bbcswebdav/pid-1067810-dt-content-rid-4165329-1/courses/16S2-CM2031-LEC/assignment%20 3. Draw a stepwise reaction mechanism with arrow pushing for the reaction below. 0.5 mark NaOH MeOH
Condensation Reactions Homework (Chapter 19) NAME 1. Explain why aldehyde A is more reactive to nucleophilic addition reactions than ketone B. 2. Give the curved arrow mechanism for each aldol reaction. est NaOH, H, heat NaOH, H, heat 3. Give the major organic aldol product for each reaction, along with the dehydration produs possible) formed after heating. NaOH H,0 heat NaOH heat HO heat NaOH HO
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 23. a) Write a reasonable mechanism, using good curved arrow notation, for the aldol condensation of propanal. i H NaOH H2O heat b) Show how you would prepare the following molecule from 1-propanol, formaldehyde,...
6. Give the major organic product from each mixed aldol reaction. Then explain why the reaction conditions favor one product instead of generating a mixture of products. NaOH a. + Н,о "СС, NaOH b. Н.о a. LDA c. b. О H н 7. Give the curved arrow mechanism for this reaction. NaOH, H,O Н heat
Organic Chemistry 2 Experimental Outline In its simplest form, the aldol condensation is a self-addition involving two molecules of the same aldehyde or ketone, in the presence of a base, and results in the formation of a new carbon-carbon bond joining the carbonyl carbon of one molecule to the a-position of the second. In many cases - if the reaction conditions aren't sufficiently mild - the initially formed aldol product reacts further in an elimination reaction to give what is...
7) Give the mechanism including the transition state. сн.ct çı SN2 НН 8) Give the mechanism. CH1 보 SN1 CHCH,CH-C CH. но H Br 9) Give the mechanism of the reaction shown below. CH CI E1 CH,OH 10) When 1-bromo-2,2-dimethylcyclopentane is heated in ethanol, one of the products which results is shown below. Provide a detailed, stepwise mechanism for the production of this compound, and give the name of the mechanism by which it is produced. CH3 CH3
Give a curly arrow or fish hook mechanism for the following reaction, indicating clearly both major and minor products expected. With reference to your mechanism and the stability of any key intermediates involved in both major and minor routes, explain why the process is regioselective.