12. Name of the given compounds are as follow
So the correct answer is (a)
13.
There are five main types of acyl derivatives. Acid halides are the most reactive towards nucleophiles, followed by anhydrides, esters, and amides. Carboxylate ions are essentially unreactive towards nucleophilic substitution, since they possess no leaving group.
A major factor in determining the reactivity of acyl derivatives is leaving group ability, which is related to acidity. Weak bases are better leaving groups than strong bases; a species with a strong conjugate acid (e.g. hydrochloric acid) will be a better leaving group than a species with a weak conjugate acid (e.g. acetic acid). Thus, chloride ion is a better leaving group than acetate ion. The reactivity of acyl compounds towards nucleophiles decreases as the basicity of the leaving group increases, as the table shows.
Therefore anhydride be most reactive followed by esters and finally the aminds. Here we have two esters. We know that alkyl groups are electron releasing groups which increse the elctron density in the compound. Hence the compund having isopropl group adacent to carbonyl will increase the electron density around the carbonyl and will make it less reative towards nucleophile. So the correct option be (b)
14. As we have mention the reactivity order of carbonyl as
therefore the correct option be (d)
15.
12. What is the correct structure for phenylbenzoate? What is the order of decreasing reactivity towards...
Numbers 1 and 2 What is the correct structure for phenyl benzoate? What is the order of decreasing reactivity towards nucleophilic acyl substitution for the carboxylic acid derivatives? (most reactive first). a. I, II, III, IV b. I, III, IV, II c. II, IV, III, I d. II, I, III, IV
Spid deri 7. What is the order of DECREASING reactivity toward nucleophilic acyl substitution for these carboxylic acid derivatives (most reactive first)? 9. Using your knowledge of organic chemistry, what is the order from most reactive to least reactive of these esters toward a nucleophile? och la NHCH I NHCH 1 2 (a) II, IV, III, I (b) I, II, III, IV (a) 1 > 2 > 3 (b) 3 >1 > 2 (c) 2 > 3 > 1 >2...
rank the following carboxylic scos derivatives in decreasing order (most to least) of reactivity towards nucleophilic substitution. Question 5 Incorrect Mark o out of 1 p Flag question Rank the following carboxylic acid derivatives in decreasing order (most to least) of reactivity towards nucleophilic substitution. Select one: a. I > IV > Ill>llx b. ll > III > IV> a. l> 111 11> IN d. 1 > IV>II> e. I>l> 111 11
20) Rank the following Carboxyllic Acid derivatives in decreasing order (Most to Least) of reactivity towards Nucleophillic Substitution reactions? 3 Pts "NH2 II III IV More Reactive: Least Reactive 21) Match the following? 2 Pts 1) Alkynes 2) Aromatic Compounds 3) Aldehydes/Ketones 4) Carboxyllic acid derivatives A) Nucleophillic Addition Reactions B) Nucleophillic Substitution Reactions C) Electrophillic Additon Reactions D) Electrophillic Substitution Reactions
1. Give IUPAC names for the following compounds: O H.C =CH-C-NH2 H,00 H.CO 2. Draw structures corresponding to each of the given names. Ethyl 4-aminobenzoate acetic formic anhydride 3. What is the order of decreasing reactivity towards nucleophilic acyl substitution for the carboxylic acid derivatives? (most reactive first) H,C-4-0--CHHC-2-N(CH) Hc--OCH, (CH),CH----OCH,
Rank the following carbonyl-containing compounds in order of reactivity towards nucleophilic attack. draw theproducts of the following reaction as they occur in acid solution. Classify these structures as hemiacetal, hemiketal, acetal, ketal, or other. Draw the final organic product of the following three-step reaction of bromomethylbenzene. Rank the following carbonyl-containing compounds in order of reactivity towards nucleophilic attack. Most reactive Least reactive acetic anhydride methanal propanone butyl acetate N,N-diphenylethanamide 3-methylpentanoyl chloride
9. What is the product of the following reaction? CI O Na o O Na* IV A)I 11 C) 111 D)IV 10. Which of the following substrates cannot be used as an immediate precursor to synthesize an ester? он A) I BII C) III D) Iv 11. Ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution that ethyl p- methyoxybenzoate. Explain this reactivity difference using both words and structures. ес v‘ソ .to nllew nucleerLilit/acyl rubrimin-, Jeer net Criteria for Satisfactory...
3) Identify the first mechanistic step in the reaction shown below. H2O OH Lilia ci H-Ö: H-02 4) Rank the following from least reactive to most reactive towards nucleophilic acyl substitution. NH2 ОСН3 III IV a) II <I< IV < III b)I<IV < II < III c) III <IV <I<II d) I< II <IV < III
QUESTION 43 less reactive)? Which of the following is the correct order of decreasing reactivity in hydrolysis reactions (more reactive a acid chlorides > anhydrides >amides b. anhydrides > acid chlorides >amides camides > acid chlorides > anhydrides d. anhydrides >amides > acid chlorides QUESTION 44 Which of the following is the correct order of decreasing leaving group ability in nucleophilic acyl substitutions (better leaving group > worse leaving group)? a. NH2"> CH30">CH b.CP>CH:0">NH2 c.c"> N12"> CH30" d. CH30">Cr">NH12" QUESTION...
1. Rank the following carbonyl compounds from 1 to 5 in order of decreasing reactivity towards nucleophilic attack (i.e., from 1 for most to 5 for least reactive). Н Н. OCH I CH3 NO2 CHE CH3 NO2 CH3