DAT Organic Chemistry Study Review Practice Test.
Enantiomer - CORRECT ANSWER Non-superposable mirror images
Diastereomer - CORRECT ANSWER Non-mirror images with same chemical formula
Meso Compound - CORRECT ANSWER Achiral but has stereocenters
Why are axial conformations of large sub...
Oxomercuration-Demercuration Addition - CORRECT ANSWER Markovnikov Addition of -OR or -OH to
more substituted carbon, HgOAc to less substituted carbon
Hydroboration Reactants - CORRECT ANSWER Alkene+BH3, THF in EtOH followed by H2O2, NaOH
Hydroboration Addition - CORRECT ANSWER Antimarkovnikov -OH adds to less substituted carbon
Alkene+HBr in ROOR - CORRECT ANSWER Antimarkovnikov addition of -Br
, Alkene + Br2 in H2O - CORRECT ANSWER -OH adds to more substituted carbon, -Br to less substituted
carbon
Antiaddition
Alkene + Br2 in inert solvent like CCl4 - CORRECT ANSWER Antiaddition of both -Br, cyclic bromonium
intermediate
Alkene + OsO4 followed by NaHSO3 and H2O - CORRECT ANSWER Oxidation reaction; syn addition of
two -OH
Alkene+O3 followed by (CH3)2S - CORRECT ANSWER Oxidative Cleavage to aldehyde or ketone
Alkene+KMnO4, hot and concentrated followed by Acidic Workup - CORRECT ANSWER Oxidative
Cleavage to aldehyde or ketone
Alkene+H2/Pd or Pt - CORRECT ANSWER Syn addition of 2 H into alkane
Alkene+Peracid in MCPBA - CORRECT ANSWER Antiaddition of 2 -OH
Peracid is RCO3H
What is the only stable cycloalkyne at room temperature? - CORRECT ANSWER Cyclononyne
Synthesis of an Alkyne - CORRECT ANSWER Adjacent Dibromoalkane + NaNH2 in DMSO
Terminal Alkyne+NaNH2 followed by primary bromoalkane - CORRECT ANSWER 1. Deprotonation of
Alkyne (good Nu)
2. Backside attack by Nu, Br leaves
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