7. Which nucleophile would you expect to add reversibly to an a,ß-unsaturated carbonyl? а. NaBHa b. (CH3CH2)2CuLi c. CH3(CH2)3MgBr d. CH;CH2LI e. LİAIH4

Q: Rank the nucleophiles in each group in order of increasing nucleophilicity. а. "ОН, NH, Ha0 b. "OH,…

A: The reagents which have a greater affinity for the positively charged species are known as…

Q: ?nucleophiles اختر واحدة أو أكثر a. CH4 Ob. Br c. H20 d. NH3 e. H2C=CH2 (-)f. OH (+)g. Br h. BH3

A: The electron rich species are termed as nucleophiles. Nucleophiles can be neutral or negatively…

Q: Sl2, AICI; a complete curved mechanism -arrow generation of the active electophile 1. Two equivalent…

A: A chemical reaction proceeds in the forward direction by reacting with other molecules of the…

Q: What is the best reagent to complete this synthesis? 1) ???? 2) NaCN OH ÇN A. PBr3 В. CISIME; SOCI,…

A: The given reaction is a type of nucleophilic substitution reaction.

Q: Explain the observed rate of reactivity of the following 2° alkyl halides in an SN1 reaction.

A: In SN1 if Cl- leaves the right most compound will form an Aromatic compund with 6e- which is stable.…

Q: X Complete the following reaction 0/3 O CH3CHCICH2COCH3, AICI3 О снзсн2сH2сосі, AICI3 CH3CHCICH2CH3,…

A: Freidal crafts reaction

Q: 2. A. Rank the following compounds by the rate of SN1 reactivity. Molecule that reacts fastest with…

A: The SN1 reaction is a unimolecular nucleophilic substitution reaction. The nucleophile is a chemical…

Q: From each pair, select the stronger nucleophile. Q.) CH3OCH3 or CH3SCH3

A:

Q: Rank these nucleophiles from best to worst Na-I I Best (II)>(1)>(III) worst Best (1)>(III)>(II)…

A: Nucleophile is species which have tendency to donate electron pair. It is electron rich species

Q: Which of the following compound(s) may not be converted to a good nucleophile by LDA? OCH3 I II or…

A: Lithium diisopropyl amide (LDA) is bulkier and stronger base. The structure of LDA is  Due to…

Q: Rank the following substrates in order of increasing rate of the E1 reaction. NH2 F OTs D A B

A: E1 reaction : This is a type of elimination reaction is also known as unimolecular elimination…

Q: Alkyl diazonium salts (shown below) are considered "super" leaving groups; a consequence of this is…

A: Alkyl diazonium salts are the excellent leaving group because R- N2+ because nitrogen is an…

Q: 4. Which one of the following compounds will react faster by SN1? PhBr PhCH2Br PHCH= CHBr MezCBr…

A:

Q: (d) O (e) os. (f) os- NH or or (g) (h) or (i) CH3S or CH;Se or NH PH (j) CH3SE Br

A: This is a question with multiple subparts. So, as per bartleby guidelines I need to solve first…

Q: Which of the following SN2 reactions proceeds the fastest? NaSCH3 CH3-CH2-CH2-Br DMSO NaOCH3…

A:

Q: an instructor will demonstrate how quickly turpentine (paint thinner, a ~2:1 mixture of alpha and…

A: Given: (mix of Unimolecular Substitution and Elimination products)

Q: Rate the below nucleophiles in terms of INCREASING nucleophilicity. Explain why. CH3OH CH;0 t-BuO-…

A: As the name suggests, nucleophiles are those reagents that possess attraction for the positively…

Q: 49. Reactivity of the alkylhalide in an E2 Reaction I. II. C6HsCH2CHBrCH2CH3 C6HS CH2CH2CHBRCH3

A: Elimination reaction: it is defined as the organic reaction in which two substituents are removed…

Q: Draw the mechanism ffrom benzaldehyde to this using:   i)NaBH4 ii)TsCl, py iii)NaCN iiii)H+,…

A: Given,  The mechanism for target product formed from benzaldehyde by using  i)NaBH4 ii)TsCl, py…

Q: The nucleophile approaches from the opposite side of the carbon with the leaving group in which…

A: It is SN2 reaction. In SN2 reaction i.e nucleophilic substitution biomolecular,   one bond is broken…

Q: Rank these nucleophiles from best to worst Na- I -I Best (II)>(1)>(III) worst Best (1)>(III)>(II)…

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: ÇI NaSCH3 ? Be *very specific* about the stereochemistry of the product(s) of this reaction 18.

A: Given: Observing the given alkyl halide shows that it is a secondary alkyl halide with a good…

Q: Drag the appropriate items to their respective bins. CH3 CH= CH2 CH3 CH3CH(CH3)CH,NH2 CH3CH2COO…

A: Attacking reagents can be classified into two types  Electrophiles (E+)  Nucleophiles (Nu-)…

Q: Which member of each pair is a better nucleophile in methanol?

A: “Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: Draw the configuration(s) of the substitution product(s) formed from the reaction of the following…

A: a) Please find below the substitution product for the above reaction  Since the attack will happen…

Q: Question attached

A: A stronger base will be a stronger nucleophile.

Q: Identify the stronger nucleophile in each pair. a.NH3, −NH2 b.CH3NH2, CH3OH c.CH3CO2−, CH3CH2O−

A: -NH2 is a conjugate base of NH3. The amine-based compound is a stronger base than the alcohol-based…

Q: From each pair, select the stronger nucleophile. Q.)Cl- or I- in DMSO

A: The species, that make a covalent bond by donates a pair of electrons is known as nucleophile.…

Q: Select which molecule is the better nucleophile in the following pair: a). Br− or Cl− in H2O b).…

A:

Q: (8) Which nucleophile in cach pair will react faster in SN2 reactions? Circle one choice in cach…

A: Nucleophile donates a pair of electrons to bond with the other atom. Molecules or ions with one or…

Q: Identify the stronger nucleophile in each pair. a. NH3,−NH2 b. CH3NH2, CH3OH c. CH3CO2−, CH3CH2O−

A: Nucleophile  : Molecule which easily donates electron pair are called nuclephile.

Q: Which of the following is the strongest nucleophile? CH3S OH- H20 CH3O¯ NH3

A: Nucleophiles    A Nucleophile is a chemical species that donates an electron pair to form a…

Q: lect which molecule is the better nucleophile in e following pair: Br- or Cl- in H20 СНЗО-or CНЗОН…

A:

Q: Rank the nucleophiles in each group in order of increasing nucleophilicity. a.−OH, −NH2, H2O b.−OH,…

A: a. Negatively charged nucleophiles are stronger nucleophiles than neutral ones. Hence water is the…

Q: From each pair, select the stronger nucleophile. Q.) CH3SH or CH3S-

A: The species which make a covalent bond by donating a pair of electrons is termed as nucleophile.…

Q: 5. Rank the following according to increasing reactivity (1- least reactive, 4 – most reactive in a…

A: The question is based on the concept of organic reactions. We have to identify the reactivity order…

Q: Which halide is most reactive in SNl reactions? Select one: O H;C-CH2-CH2CI CH3 H3C-CH-CH2CI CH3…

A:

Q: ? Br What is the best reagent for the transformation shown above? B E „Mgl A D PPH3

A: We know that R-Li gives exclusively gives 1,2 product.

Q: 56. Rate of SN2 reaction: I. CH;CH2CH2CH2CH2BR + CH30/H2O→ II. CH;CH2CH2CH2CH2BR + CH3O°/DMSO→

A: We know that   SN2  reaction is second order reaction because it involves the nucleophile and the…

Q: How does changing the alkyl halide from CH3CH2Br to (CH3)2CHBr affect the rate of an E2 reaction?

A: The nucleophilic substitution reaction of an alkyl halide that involves both the concentration of…

Q: Which reagent(s) will result in the nucleophile attacking the more substituted side of an epoxide?…

A: Given condition is nucleophile must attack to more substituted side of the epoxide.

Q: Which factor below does NOT influence the rate of an SN2 reaction. O nature of the solvent O steric…

A:

Q: In the reaction CH4 + C12 --> CH3CI + HCI, which is the nucleophile? A) CH4 B) C12 C) HCI D CH3CI E…

A: Given- CH4+Cl2-->> CH3Cl + HCl

Q: Which of the following SN2 reactions occur faster and why? a CH3 H2 -C-Br CH;CH,CHBr + OH or H,C-…

A:

Q: a) Senarai order berikut mengikut kereaktifan meningkat tindak balas SN1 List the following order of…

A: A question based on SN1 reaction, which is to be accomplished.

Q: What is a mechanistic step for this reaction? Click on a letter A through D to answer. fuming H2SO4…

A:

Q: Choose the best reagent for carrying out the following transformation: 1. LIAIH4, THF 2. H3O+ O 1.…

A: In these example ester is convert into aldehyde .

Q: 2) Rank these molecules by their SN2 reaction rate. If a difference in reaction rate is hard to…

A: The correct order of molecules towards SN2 reaction is   D > E > A > C > B.   The order…