OH TH -H H N H3C- Dess-Martin periodinane provides a means to oxidize a primary alcohol to an aldehyde, while avoiding the use of toxic Cr(VI) compounds. The mechanism involves a reaction similar to the E2 elimination, whereby a C=O double bond is formed with a reduced iodine compound as the leaving group. The reaction occurs in a nonaqueous solvent, CH₂Cl₂, so that the aldehyde product can be recovered. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions HỌ: →XT OAc AcO OAC a d H3C H3C-C-H H ACO OAc -OAC ACO HO CH3 -OACH OAC
OH TH -H H N H3C- Dess-Martin periodinane provides a means to oxidize a primary alcohol to an aldehyde, while avoiding the use of toxic Cr(VI) compounds. The mechanism involves a reaction similar to the E2 elimination, whereby a C=O double bond is formed with a reduced iodine compound as the leaving group. The reaction occurs in a nonaqueous solvent, CH₂Cl₂, so that the aldehyde product can be recovered. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions HỌ: →XT OAc AcO OAC a d H3C H3C-C-H H ACO OAc -OAC ACO HO CH3 -OACH OAC
Chapter16: Chemistry Of Benzene: Electrophilic Aromatic Substitution
Section16.SE: Something Extra
Problem 30MP: The carbocation electrophile in a Friede1-Crafts reaction can be generated by an alternate means...
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#9). Other picture is the instructions on how the arrows must be shown.
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