Tetrahedron Letters p. 5303 - 5306 (1993)
Update date:2022-08-16
Topics:
Oikawa, Hideaki
Oikawa, Masato
Ichihara, Akitami
Kobayashi, Kimiko
Uramoto, Masakazu
Highly regio- and stereoselective reductions of the spiroketals have been achieved by DIBAH and silane-Lewis acid. The key factors of these selectivities were attributed to steric hindrance of α-methyl group at spiroketal and to vicinal ether oxygens for bidentate chelation.
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