Question 15 of 24 For each reaction, indicate whether it is a hydration or dehydration reaction...
(24 pts) 3. Predict the product(s) for each reaction. Indicate stereochemistry if known. If more than one product is predicted, circle the one you think would be major. If there is no reaction expected, then indicate NR. а. HaCl.. Br NaCN THF b. Н—Br ether ОН с. CH3 КОН Br THF d. НОСН heat е. PBr3 ОН ether f. ОН NaSCH3 Hо g. cat Br H2SO4 heat ОН h Br H но heat Br
< Question 11 of 16 > Determine if each reaction is an oxidation, a reduction, or neither. HO H- -OH HOở H. H OH но-с-н H-¢-OH н—с-он H- -OH HOẠCH. H----OH HO-C-H -o-o-o- HOCH HO—•—H CH OH ён,он Reaction B CH, OH 4.OH Reaction A Reaction A is a: Reaction B is a:
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Instructions: Consider the reaction below to answer the following question. На но носH,сH,он в 4. Refer to instructions. The electrophile, the nucleophile and the catalyst in this reaction are indicated by letters respectively and Multiple Choice Identify the choice that best completes the statement or answers the question S. Many nucleophilic addition reactions of aldehydes and ketones are catalyzed by acid or base. Bases catalyze hydration by: a. converting the water to hydroxide ion, a much...
15. (3 pts each) Give the product(s) for the following reactions, and name all reactants and products. CH, он ОН н,с + H3c— сн - сн 3 Нас NH2 он + о н Н H-с-с-о-н Но -P -ОН н Н ОН
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4. Write the complete equation for the hydration reaction of the following alkenes. If more than one product can be formed, indicate which one is the major product. For example, the hydration of ethene is written as follows: H н H он Но + Н-С C-H ethene H H CH2CH3 CH3 CH3 b) CH,CH2 a) CH2CH2CH2CH2CH CH3CH2CH Name the following molecules: 5. CH2CH сH-CH,CнсH,сн, снсH,сн, HF OH H H HH I! ! I a) Cl-c-C-C-c-H II...
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7. Indicate whether each of the following carbohydrates is reducing or nonreducing: HO GHOH он нонни У SH,OH cң он HỌ O OCH е ну о чно он НА но то он (c) HOCHZ0. ÇH,OH ну CH,OH а, ОЛОН 4 на Xно- ньон yoXч на ко, ОН Н
3. Give the major organic aldol product for each reaction, along with the dehydration product (if possible) formed after heating. NaOH HO NaOH HO NaOH heat H2O 4. In the following reaction the aldol product C is difficult to isolate, and even without heating the dehydration product D is formed instead. Explain. ОН Ін 10-4 NaOH HO 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH HO
QUESTION 20 Consider the dehydration reaction using the starting material shown below to answer questions 20-23 Dehydration Which reagent(s) are required to perform a dehydration reaction? o a. HCI С. NaH o d. H2SO4 e. NaOH f, H2SO4, heat g. NaOH, heat QUESTION 21 Identify all carbocations that appear in the mechansim for this reaction. Choose all that apply iv) a. C. eNone of the above. The reaction goes by an E2 mechanism and no carbocations are formed. QUESTION 22...
1. For each reaction below, draw the reaction mechanism for the rate determining step. On the Starting structures, draw all appropriate arrows to indicate the flow of electrons. Fill in the box above the arrows with the reaction mechanism as SN1 or SN2. Draw the first key transition state and product(s). Use dotted lines to indicate bonds that are in the process of being broken or made. Write all formal charges. O н,с CI: Transition State н,с CH н— осн,...
1. For each reaction below, draw the reaction mechanism for the rate determining step. On the starting structures, draw all appropriate arrows to indicate the flow of electrons. Fill in the box above the arrows with the reaction mechanism as SN1 or SN2. Draw the first key transition state and product(s). Use dotted lines to indicate bonds that are in the process of being broken or made. Write all formal charges. н н * HC CI: Transition State H HD...