A Novel and Stereoselective Spiroannelation: A Facile Access to Aphidocolane and Stemodane B/C/D-Ring Systems

DOI: 10.1016/S0040-4039(00)73130-3

Source and publish data:

Tetrahedron Letters p. 4125 - 4128 (1994)

Update date:2022-07-29

Topics:

Authors:

Tanaka, Tetsuaki

Okuda, Osamu

Murakami, Kazuo

Yoshino, Hitoshi

Mikamiyama, Hidenori

et al. et al.

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Article abstract of DOI:10.1016/S0040-4039(00)73130-3

Spiro<5.5>undecane derivatives 6A and 7S were obtained in moderate stereoselectivity by the intramolecular spiroannelation reaction of a bis-acetal 3 promoted by TMSOTf, and the selectivity was reversed by changing the solvent from acetonitrile to THF.

Full text of DOI:10.1016/S0040-4039(00)73130-3

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