tl Draw the chair conformation of the transition state of the given reaction and predict the major diastereoisomer after its aqueous workup. 1. LDA ol ve 2. H
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- Draw the chair conformation of the transition state of the given reaction and predict the major diastereoisomer after its aqueous workup. 1. LDA 2. 요 HNoneAlkenes can be converted to alcohols by hydroboration-oxidation. (a) Draw the structure of the alcohol or alcohols formed in the reaction sequence. Clearly indicate stereochemistry by drawing a wedged bond, a dashed bond and two in-plane bonds per each chiral carbon. Draw hydrogen atoms that are connected to wedge-and-dash bonds.(b) Characterize the product or products of the reactions. Be sure to draw hydrogens on oxygen, where applicable. 1. B2H6, diglyme (a) 2. H2O2, HO, H20 OH OH H Incorrect MacBook Pro
- What reagents are appropriate to carry out the conversion shown? - OH LOM 1. mCPBA; 2. CH3MgBr; 3. H₂O O 1. CH3MgBr; 2. H₂O O 1. mCPBA; 2. H₂O O mCPBA + enantiomer2. Consider the E2 elimination of compound A and answer the following questions. D H t-BUOK Products Br A (1) Label each stereocenters in compound A with the correct R or S configuration; (2) Draw the structures of the major product with correct stereochemistry (assume D and H have the same reactivity).draw the starting structure that would lead to this major product (and its enantiomer) under these conditions
- Given the following reaction sequence, determine the structures of A and B, including proper stereochemistry. Br NaOH A DMSO 1. CH3(CH)3Li В 1. NaH 2. CI- Br 2.Draw a representation of the transition state for the following endergonic mechanistic step. H;C-CH=CH, H-OH2 H3C-CH-CH; H,0What is the expected major product for the following reaction sequence? ĺ HOL HO 1. BH 3 THF 2. H₂O₂, NaOH HO Hot + enantiomer || ? HO Hot + enantiomer ||| OH com + enantiomer IV HO HO + enantiomer
- To preview image click here 3D/sahorse structure Ph Br Ph Newman projection Alkene Product For the following compound a) Draw the 3-D structure in the reactive conformation for a E2 elimination using wedge/dashed bonds to indicate stereochemistry. b) Draw a Newman projection in the reactive conformation for E2 elimination c) Give the alkene product obtained upon a E2 elimination using a non-bulky base.PQ-6. What is the rate determining step of this reaction? CH₂CH3 (A) HOTS H3C (C) NC CH₂CH3 HOTS H3C CH₂CH3 NaCN Hi H3C (S)-isomer (B) OTS acetone Hi H₂C (D) NC CH₂CH3 CO-H Ts CH₂CH3 ∙H H H₂C CO CN H H3C CH₂CH₂ (R)-isomerDraw all stereoisomers formed in each reaction.
