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Aerobic hydroxylation of N-borylenamine: triethylborane-mediated hydroxyalkylation of alpha,beta-unsaturated oxime ether.

Organic letters (2009-10-09)
Masafumi Ueda, Hideto Miyabe, Takahiro Kimura, Eiko Kondoh, Takeaki Naito, Okiko Miyata
RESUMEN

Intermolecular hydroxyalkylation of alpha,beta-unsaturated imines involving Et3B-mediated regioselective alkyl radical addition and subsequent hydroxylation with molecular oxygen has been developed, in which N-borylenamine generated by trapping of the enaminyl radical with Et3B was a key intermediate in the proposed aerobic hydroxylation mechanism.

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Sigma-Aldrich
Triethylborane, ≥95%