.This carbocation can undergo 7 unique [1,2R] rearrangements. Draw each possible product. Be systematic! CH bo
1) For the following reactions, draw the product(s). Remember to keep in mind carbocation rearrangements, stereoselectivity (syn/anti addition) and racemic mixture of enantiomers due to formation of new chiral centers. h) Lindlar's catalyst excess CH3CH2C CH HCI H2O, H2S04 HgSo k) 1.9-BBN 2. H202. NaOH CH3CH2CH2-CEc-CH3 excess Ce CH3CH2CH2-CEC-CH3 CCI4 1 eq Br2 CCl 1. Оз 2. H20 n) o) H 1) NaNH2 H3C 2) CH3CH2CH2Br
(methyl shit) CH, 20 carbocation Draw the reactant and major product of each of the following reactions, also indicating your reagents. ) a) Complete hydrogenation of ethyne, C2H2. CHE 250 HW- Ch 7-8-ALKENES-SYNTHESIS & REACTIONS b) Hydration of 2-butene OH c) Addition of HBr to propene: d) Reaction of 1-butene with HBr/HOOH: e) Reaction of 2-methyl, 2-butene with: 1) BHs; 2) H202, HO
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...
draw the major product and show the detailed mechanism Bo Eto /EtOH vd bon o CH₃O-
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
answer all questions 1. For the following substrates, predict whether a carbocation rearrangement will take place in an SN1/E1 mechanism by first drawing the carbocation intermediate, then deciding if the carbocation will rearrange (can it form a more stable carbocation by hydride or methyl shift?): Carbocation: Sturcture Rearrange? If yes, draw the rearranged product. If no, write No н.с Br Н,с, Cн, 2. For each pair of nucle ophiles, circle which will react faster with CHsl in an Sx2 reaction....
Draw in the curved arrows for the following reactions. Label each reactant and product as an acid, a base, a conjugate acid, or a conjugate base except for any rearrangements or additions. Draw in the curved arrows for the following reactions. Label each reactant and product as an acid, a base, a conjugate acid, or a conjugate base except for any rearrangements or additions. 2. - H-O + H + (a) H н H-C-Ö-H (b) CH H-Ö+ о-сн, +-CH, (c)...
1.) Draw the mechanism and intermediate/product for each step of the following reaction. Each bo>x represents a structure that should be given. Mechanisms for each step can be included with the previous structure. (20 points) (no mech. needed here) Br Mg ether H30 (no mech. needed here) 1.) CH3MgBr CrO,/H2SO4 2) H o 1.) Draw the mechanism and intermediate/product for each step of the following reaction. Each bo>x represents a structure that should be given. Mechanisms for each step can...
7). Consider the structure for 2,4-dichlorohexane, CH-CH(CI)CH-CH(CI)CH CH. A) (16 pts) Draw all four possible stereoisomers in BOTH the wedge/hash (sawhorse) format as well as Fischer projections. Each box is expected to contain the same stereoisomer. B) (4 pts) CIRCLE the (29,45)-2,4-dichlorohexane isomer. Put a BOX around its enantiomer. C) (5 pts) Which one(s) of the several diastereomers can be separated using Thin Layer Chromatography? 1. all four stereoisomers can be separated 2. The pair (2R,4S) and (2R,4R) can be...
Calculate the DU for CH, BO Solution Br counts as an H and can be ignored, so calculate as though the formula were CH. DU = (28) + 2 - 14 = 2. PROBLEM 2.9 Calculate the DU for these formulas and draw two constitutional isomers for cach: a) CH0 b) CHN c) CHF d) CHACIN ) CH.NO Due next Class PROBLEM 2.10 Determine the DU for each of these structures: OCH.CH b) N