Chemistry, 30.03.2020 23:58 naydabaddest
The Fischer esterification reaction synthesizes an ester via a nucleophilic acyl substitution reaction. The stereochemistry of the alcohol group is unchanged as it is the alcohol oxygen that makes the nucleophilic attack. The Mitsunobu reaction, on the other hand, allows the synthesis of an ester in which the stereochemistry of the alcohol is inverted. The reaction involves a carboxylic acid and an alcohol, as well as triphenylphosphine and an azo compound termed diethyl azodicarboxylate (DEAD). As with the Fischer esterification, H2O is formally lost during the reaction. However, in the Mitsunobu reaction the OH is lost from the alcohol and the H is lost from the carboxylic acid. The overall reaction is an SN2 reaction which occurs with inversion of configuration at the chiral carbon. Draw curved arrows to show the movement of electrons in this step of the mechanism.
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Chemistry, 21.06.2019 20:30
12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]
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Chemistry, 22.06.2019 09:50
Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore
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The Fischer esterification reaction synthesizes an ester via a nucleophilic acyl substitution reacti...
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