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QUESTION 18 Consider the following intermediate in the mechanim of a Fischer esterification, what is most...
Consider the below general Fischer Esterification reaction.
Which intermediate(s) are formed during the mechanism? Select all
that apply.
Question 1 2 pts Consider the below general Fischer Esterification reaction. Which intermediate(s) are formed during the mechanism? Select all that apply. R2OH Cat. H2SO4 R1 R1 OR2 OH ОН R1 Он -OH R1 R2 .H -OH R1 R2 OH HT R1 H R2 I H. OR2 Ri -OH R1 R2 R1 OH H R2
Question 1 2 pts Consider the below general Fischer Esterification reaction. Which intermediate(s) are formed during the mechanism? Select all that apply. ROH Rí OH Cat. H2SO4 Rí OR2 OH R1 R2 Η B1 OH -ОН он ОН о– 8 o -o о- ОН R, Qu е о o R, ОН —ОН о-
4. Alcohols undergo two major types of elimination reactions. Classify the following reactions as DEHYDRATION (removal of W U RCACIAD 20s Sax oa or DEHYDROGENATION (removal of hydrogen). ater) а. НС, CH2 concentrated., acid CH2 Cн Hас CH2 A-CH2 CH CH2 Н,с сн CH3 CH3 OH (Oil-D b. Н,С CH CH2 O CH2 CH2 CH H3C CHh CHh CH CH CH2 Н.С CH3 CH3 ОН CH CH2 CH2 CH2 CH2 C. CH, CH, "oн Но
4. Alcohols undergo two major...
18 In the following Fischer esterification reaction, a reagent containing (an isotope of oxygen) is used as a starting material. Where can theo be found in the products? Select all that apply. 180 H2SO4 + OH OH Select one or more: 180 a. + H2O b. + H2180 C. incon + H20
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
draw fisher projections for both the D and L isomers of the
following
12 Identify each of the following as a D or an L form and draw the structural formula of the enantiomer: CHO b. a. CH,OH C=O он HOH HOH но CH,OH CH,OH 3 Draw Fischer projections for both the D and L isomers of the following a. 2,3-dihydroxypropanoic acid b. 2-chloro-3-hydroxypropanoic acid Draw Fischer projections for both the D and L somers of the following amino acids:...
1) Examine the structures below. Circle the compound(s) that would be most likely to yield a positive ferric chloride test. СНа OH H3C CH2 CH3 CH3-CH-CH2 | HO -CH он он CH (C) (D) (A) HzĆ CH3 (B) 2) What is the IUPAC name of molecule (D) in question number one? YOH CH3
RM-248 Which of the following is true of the Fischer esterification reaction? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer a A. it requires an acid catalyst b B. the reaction is an equilibrium C C. excess alcohol helps drive it near completion d A and Care correct e A, B and C are correct Match the products of the reactions on the left with the structures on the right. o=0...
45. The most likely products of the following reaction are_ conc. Hl н,с-с-о 46. The most likely product of the following reaction is 1) Hg(O,CCF,h (CHCOH 2) NaBH o-C(CH) он C(CHy) C. 47. The following transformation can be made by A. Reaction with H2O/Cl2, followed by reaction with concentrated NaOH B. Reaction with m-chloroperoxybenzoic acid, followed by reaction with concentrated NaOH C. Reaction with HBr, followed by reaction with potassium t-butoxide. D. Reaction with Hg(O2CCH3)2, followed by reaction with m-...
having trouble with R and S configuration, can someone help out
with this sheet?
17 Br>Cl'7 S"7 F>ONTO77i77 H 1. Determine the configuration (R or S) of each of the following molecules: (Ph phenyl, a benzene ring as a group) CH-CH3 b. CHs с. но NH2 d. он COOH Ph H Hас CH2CH3 H2N CH&CH NH2 NH2 f. Ph CH3 Ph CHs h. H i. OH c lCOOH н.сн,с F Н.с NH2 h. COOH CHs CH2CH H2N 2. Label the...