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Synthesis of 2,6-bis(4R-trialkylsiloxymethyloxazolinyl)pyridines and their use in catalytic asymmetric 1,3-dipolar cycloaddition reactions of nitrones and activated alkenes

✍ Scribed by Seiji Iwasa; Shinji Tsushima; Tomoo Shimada; Hisao Nishiyama

Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 56 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)01315-6

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✦ Synopsis

1,3-Dipolar cycloaddition reaction of aromatic nitrones with 3-alkenoyl-2-oxazolidinones in the presence of a chiral 2,6-bis(4R-trialkylsiloxymethyloxazolinyl)pyridine/Ni(II) system proceeds smoothly with high enantioselectivity in up to 99% ee.

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