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ARYLBORONIC ACIDS WITH INTRAMOLECULAR B-N INTERACTION: CONVENIENT SYNTHESIS THROUGH ortho-LITHIATION OF SUBSTITUTED BENZYLAMINES
Ortho-lithiation of N,N-dimethylbenzylamine and reaction with trimethylborate gave the corresponding boronic acid in good yields.The reaction was extended to the synthesis of various aromatic boron compounds with nitrogen-containing substituents in the ortho-position, including a chiral boroxin prepared from (S)-N,N-dimethyl-1-phenylethylamine.From N-Methyl-benzylamine a stable boronium salt was obtained under certain conditions.The spectra of the newly synthesized compounds are discussed.Intramolecular B-N interaction is established by 11B NMR spectroscopy.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Quality Control of (S)-Propane-1,2-diol, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 4254-15-3, in my other articles.
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Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate