please answer all Chemistry 420 1. For each of the following reactions, write S if it...
1. For each of the following reactions, write S if it is a substitution and E if it is an elimination. Also write R for all of those that are also rearrangements. CH-Oн heat NaOCHs + HBr HG OH Nal Hо acetone NaBr +HBr 2. Predict which reactions proceeded by an SN1, SN2, El or E2 mechanism: NaOCH CH +NaBr оснCH Носн,сн, 50° +NaCl Nal DMSO, 45 Br NaOCHa +NaBr +HOCH Носн, 100° но +HI acetone, 50 HSO +HO HO,...
2. Predict which reactions proceeded by an SN1, SN2, El or E2 mechanism: NaOCH-CHa Br оСнCH +NaBr носH-Cнь 50° b. +NaCi Nal DMSO, 45° NaOCHa NaBr +HOCH носн, 100° но +HI acetone, 50 HSO +H2O H2O, 120 кос(CHa +KBr +HOC(CHals НоС(CHа, 100°С но DMSO, 40° +HI HCIZNCI2 +H2O h. H,O, 45° CH OH +HCI H2O, 100
1.
for each of thenfollowing write S if it is substitue and E if it is
elimination. also write R for those that are rearrangement
2. predict which reactions proceed by SN1 SN2 E1 or E2
mechanism
10/2ery due MON Unit 3 HW#2 Chemistry 420 wo Name: 1. For each of the following reactions, write S if it is a substitution and E if it is an elimination. Also write R for all of those that are also rearrangements. +...
Unit 3 Hinw '3 SNİSNDELE2 1. Give the major product(s) for the following reactions. Indicate the mec reaction occurs, write "no reaction. s) in operation. If no KOC(CH) (CH COH b. H3C NaNH2 NHy Nal H3C H2CH-CH3 CH,COCH CH OH CH3 2. Give the mechanism of each of the following reactions. NaCN CH CH CHCN NaBr a. CH,CH,CH Br acetone HSCH,CH (CH) CSCH,CH3 HBr Cl + NaCI + CH OH NaOCH CH3OH Br CH OH CH3
7. Predict the product(s) of each of the following reactions include stereochemistry where important and indicate the mechanism (S, S,2, El, E2). 80°C a 2-chloro-2-methylbutane NaOH Н.о b. (R)-2-chloropentane Nac c-H DMSO с1 (снс. Cн, CH,ОН d. trans-1-chloro-3-methylcyclohexane+ NaOC(CH) e. 2-chloro-3-phenylbutane Н.о f. trans-1-bromo-3-methyleyclopentane Nal acetone NaOCH THон g 2-chloro-2-methylbutane EIOH h R-3-bromo-2-methylpentane . trans-1-bromo-2-isopropyleyclohexane CHCOK NaSH Н,о j. 1-bromopropaе NaOCH снон CH коссH). I-bromobutane m. cis-1-chloro-3-methyleyclobutane Nal DMSO сHсH,он n. (R)-2-iodo-2-phenylethane NaOH o. 1-iodobutane p. 2-bromo-3-methylbutane KOC(CH). но (S)-3-chlorocyclopentene...
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1. In each of the following, indicate which S2 reaction will occur faster. Explain your reasoning. a. 1-bromo-2,2-dimethylpropane or 1-bromo-3-methylbutane with Nal in DMSO. b. 1-iodopentane with NaN, in ethanol or NaSCH, in ethanol, c. Reaction of isobutyl iodide with NaBr in acetone or in ethanol. 2. In each of the following, indicate which S, 1 reaction will occur faster. Explain your reasoning. a. Reaction of I-chloro-1-methylcyclohexane or 1-chloro-2-methylcyclohexane in aqueous ethanol. b. Reaction of 2-chloropentane or 3-bromohexane...
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1. Draw the structure of the principal organic product and predict the stereochemistry to be expected from the reaction of (IR, 2R)-1-bromo-2-methylcyclohexane with each of the following: a. NaOCH, in CH,OH at 60° d. NaNH, in NH, at 50° b. aqueous CH,OH at 140° e. aqueous CH,CH,OH at 25° c. Nal in DMSO at 40° 2. Draw the major product(s) (showing appropriate stereochemistry when necessary) for the following reactions. Indicate the mechanism(s) in operation (SNI, SN2, E1,...
please show all steps including each mechanism (arrows) and
also if SN1 has any rearrangements of carbocation intermediate
through a hydride shift and/or methyl shift. DO NOT NEED
ELIMINATION. ONLY SUBSTITUTION.
Sy1/E1 versus S2/E2 Learning Checks Draw the major organic substitution and/or elimination products in the following reactions. If no reaction is possible, write “No Reaction". Substitution Product(s) Elimination Product(s) 2) 2) OH BrCH K* -Ot-Bu NaOCH н"Сн, сн,он нсн, Ph NaOCH Br H CH3OH CH NaOCH NaOH T.CH, I...
For each of the following reactions: (1) Draw all of the organic product(s) that would be formed, and (2) label each product as formed via S1, S2. E1, or E2. For elimination products, label as major or minor. Pay close attention to regiochemistry, stereochemistry, and whether carbocation rearrangements would occur. - DBN ci Br H20 B A C CH3OH acetone NaOH D Br DMSO