Tetrahedron Letters p. 6653 - 6656 (1989)
Update date:2022-08-03
Topics:
Majewski
Bantle
The spiro[3,4-dihydro-2H-1-benzopyran-2,2'-bicyclo[3.1.1]heptane] framework of natural products Robustadials was constructed in a homochiral form. The synthesis started from 1S-(-)-β-pinene, which was coupled to a substituted benzaldehyde using a Prins reaction, and incorporated a diastereoselective, Michael-type, intramolecular addition.
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