Hi I really need help solving
this and could you explain it as well?
Homework Answers
This all reaction are elimination reactions.
In elimination reaction , the base approach to acidic hydrogen.
In elimination reaction acidic hydrogen removes from beta carbon
And leaving group removes from alpha carbon.and new pie bond forms.
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Hi I really need help solving
this and could you explain it as well?
2. For...
Tulung ate n illud aludke place in a single step. In the Sn2 reaction, the nucleophile...
Tulung ate n illud aludke place in a single step. In the Sn2 reaction, the nucleophile attacks the a-carbon from the backside and displaces the leaving group with an inversion of configuration occurring at the carbon. In the E2 elimination reaction, strong base removes an acidic hydrogen from the B-carbon and an alkene is formed as the leaving group is expelled from the a-carbon. This elimination follows Zaitsey's rule whereby the more substituted alkene is generally formed. In E2 elimination,...
How are the following two compounds related? CH CH3 HO -H HO -Н Given the following...
How are the following two compounds related? CH CH3 HO -H HO -Н Given the following substitution reaction, what would the effect be of changing the solvent from CH3OH to (CH3)2S=0? H- OH H OH VS HO -H H -OH H -OH HO H + CH (CH2CH2-Br NaOH CH;(CH2), CH2-OH + NaBr CH OH CH2OH A. The reaction rate will increase. OB. There is no effect on the rate of the reaction, C. The reaction rate will decrease. Give the...
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles....
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles. ✓ Substitution and elimination reactions and mechanisms using curved arrows. Leaving group ability. Learning Objectives After completing this activity students should be able to: ✓ Predict the role of an alcohol in the Williamson Ether Synthesis and Fisher Esterification. Determine that protonation of an alcohol affords stronger electrophiles because of better, more stabilized, leaving groups. Conversion of Alcohols to Electrophiles Protonation RCH,OH + H...
_1. An alkyl halide which might be expected to undergo rearrangement under Snl or E1 conditions...
_1. An alkyl halide which might be expected to undergo rearrangement under Snl or E1 conditions is: HZC Br CH3 A. 1 B. | F—CH,BH C. CH3-C-CH-CH, CHz CH3 D. CH3 CH3-C-CH2CH2-Br CH3 E. A Br 2. Your task is to convert 2-chloropentane into 1-pentene. Which reagents would you choose? a) NaOH/H20 b) KOH/CH3OH c) CH3ONa/CH3OH d) CH3CH2ONa/CH3CH2OH e) (CH3)3COK/(CH3)3COH 3. Circle the reaction below which is faster in polar protic solvents. OH,H,O A. CH,CH,CH,Br- CH,CH,CH,OH + Br or SH.RSH...
need help with these practice problems please :) if can help with all would greatly appreciate....
need help with these practice problems please :) if can help with
all would greatly appreciate.
A. Predict how reaction conditions (substrate, nucleophile, leaving group, solvent) effect the rate of Swi and S2 reactions. Circle the faster substitution reaction among the following pairs. If the rate is not affected, circle both OH OH in acetone ta NaBr DMSO in H2O NaBr CH, OH V CI Br- na ro ChOH CHCI Bra CHCI ? © CN acetone CI- in H20 in...
1-24 need help really lost Proton Transfer: deprotonation D. 1) Add the appropriate curved arrows for...
1-24 need help really lost
Proton Transfer: deprotonation D. 1) Add the appropriate curved arrows for the following deprotonation step. Also add the other product notice how the Tema s can be converted to this by use of a strong base such as sodium a sodium ion (Na) is not drawn, in this case it is just a spectatorio PCW27 - Mechanistic steps - Part Name: Time spent 2) Label the above compounds with the appropriate name from the previous...
short answer help plz! check the ones i answered and help with the ones i didnt!!...
short answer help plz! check the ones i answered and help with the
ones i didnt!!
9. For the following reaction, what will be the effect on the rate if [NaCN) is halved? 11. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? NaCN - Br DMSO product / V I (a) The rate doubles / CH3 (b) The rate triples The rate will be halved (d) The rate stays the same (e) There...
3. For each pair of reactions, circle which you would expect to be faster (2 pts) and indicate why in around 20 word...
3. For each pair of reactions, circle which you would expect to be faster (2 pts) and indicate why in around 20 words. a) i) CH3CH2CH2OH + HCl → CH CH CH CI + H2O ii) CHCH-CH2OH + HI – CHỊCH CHI + H2O OH + HBr + H₂O HOCH ) + HBr — Br., CH3 + H2O
1) State which of the electrophiles given below will react preferentially by i) SN1, ii) by...
1) State which of the electrophiles given below will react
preferentially by i) SN1, ii) by SN2, or iii) capable of reacting
by either of the two mechanisms depending on the given conditions.
How can you affect those conditions to favour SN1 or SN2? Reason
your predictions based on the structures of the compounds. Br-CH3,
Br-CH2CH3, Br-CH(CH3)2, Br-C(CH3)3, Br-CH2-C5H6; C5H6 = phenyl
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via...
PLEASE HELP WITH THESE. THANK YOU How are the following two compounds related? CH CH3 HO...
PLEASE HELP WITH THESE. THANK
YOU
How are the following two compounds related? CH CH3 HO -H HO -Н Given the following substitution reaction, what would the effect be of changing the solvent from CH3OH to (CH3)2S=0? H- OH H OH VS HO -H H -OH H -OH HO H + CH (CH2CH2-Br NaOH CH;(CH2), CH2-OH + NaBr CH OH CH2OH A. The reaction rate will increase. OB. There is no effect on the rate of the reaction, C. The...
Tulung ate n illud aludke place in a single step. In the Sn2 reaction, the nucleophile attacks the a-carbon from the backside and displaces the leaving group with an inversion of configuration occurring at the carbon. In the E2 elimination reaction, strong base removes an acidic hydrogen from the B-carbon and an alkene is formed as the leaving group is expelled from the a-carbon. This elimination follows Zaitsey's rule whereby the more substituted alkene is generally formed. In E2 elimination,...
How are the following two compounds related? CH CH3 HO -H HO -Н Given the following substitution reaction, what would the effect be of changing the solvent from CH3OH to (CH3)2S=0? H- OH H OH VS HO -H H -OH H -OH HO H + CH (CH2CH2-Br NaOH CH;(CH2), CH2-OH + NaBr CH OH CH2OH A. The reaction rate will increase. OB. There is no effect on the rate of the reaction, C. The reaction rate will decrease. Give the...
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles. ✓ Substitution and elimination reactions and mechanisms using curved arrows. Leaving group ability. Learning Objectives After completing this activity students should be able to: ✓ Predict the role of an alcohol in the Williamson Ether Synthesis and Fisher Esterification. Determine that protonation of an alcohol affords stronger electrophiles because of better, more stabilized, leaving groups. Conversion of Alcohols to Electrophiles Protonation RCH,OH + H...
_1. An alkyl halide which might be expected to undergo rearrangement under Snl or E1 conditions is: HZC Br CH3 A. 1 B. | F—CH,BH C. CH3-C-CH-CH, CHz CH3 D. CH3 CH3-C-CH2CH2-Br CH3 E. A Br 2. Your task is to convert 2-chloropentane into 1-pentene. Which reagents would you choose? a) NaOH/H20 b) KOH/CH3OH c) CH3ONa/CH3OH d) CH3CH2ONa/CH3CH2OH e) (CH3)3COK/(CH3)3COH 3. Circle the reaction below which is faster in polar protic solvents. OH,H,O A. CH,CH,CH,Br- CH,CH,CH,OH + Br or SH.RSH...
need help with these practice problems please :) if can help with
all would greatly appreciate.
A. Predict how reaction conditions (substrate, nucleophile, leaving group, solvent) effect the rate of Swi and S2 reactions. Circle the faster substitution reaction among the following pairs. If the rate is not affected, circle both OH OH in acetone ta NaBr DMSO in H2O NaBr CH, OH V CI Br- na ro ChOH CHCI Bra CHCI ? © CN acetone CI- in H20 in...
1-24 need help really lost
Proton Transfer: deprotonation D. 1) Add the appropriate curved arrows for the following deprotonation step. Also add the other product notice how the Tema s can be converted to this by use of a strong base such as sodium a sodium ion (Na) is not drawn, in this case it is just a spectatorio PCW27 - Mechanistic steps - Part Name: Time spent 2) Label the above compounds with the appropriate name from the previous...
short answer help plz! check the ones i answered and help with the
ones i didnt!!
9. For the following reaction, what will be the effect on the rate if [NaCN) is halved? 11. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? NaCN - Br DMSO product / V I (a) The rate doubles / CH3 (b) The rate triples The rate will be halved (d) The rate stays the same (e) There...
3. For each pair of reactions, circle which you would expect to be faster (2 pts) and indicate why in around 20 words. a) i) CH3CH2CH2OH + HCl → CH CH CH CI + H2O ii) CHCH-CH2OH + HI – CHỊCH CHI + H2O OH + HBr + H₂O HOCH ) + HBr — Br., CH3 + H2O
1) State which of the electrophiles given below will react
preferentially by i) SN1, ii) by SN2, or iii) capable of reacting
by either of the two mechanisms depending on the given conditions.
How can you affect those conditions to favour SN1 or SN2? Reason
your predictions based on the structures of the compounds. Br-CH3,
Br-CH2CH3, Br-CH(CH3)2, Br-C(CH3)3, Br-CH2-C5H6; C5H6 = phenyl
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via...
PLEASE HELP WITH THESE. THANK
YOU
How are the following two compounds related? CH CH3 HO -H HO -Н Given the following substitution reaction, what would the effect be of changing the solvent from CH3OH to (CH3)2S=0? H- OH H OH VS HO -H H -OH H -OH HO H + CH (CH2CH2-Br NaOH CH;(CH2), CH2-OH + NaBr CH OH CH2OH A. The reaction rate will increase. OB. There is no effect on the rate of the reaction, C. The...
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