Tetrahedron p. 3435 - 3450 (1996)
Update date:2022-08-04
Topics:
Nangia
Prasuna
The effect of different bases in promoting Horner-Wadsworth-Emmons (HWE) reaction on enolisable cyclopentanones is investigated. NaH is found to be suitable for the intermolecular reaction and DBU/LiCl is optimal for the intramolecular variation. The HWE approach is employed for the enantioselective synthesis of iridoid cyclopentapyranones of type-I (4, 16, 52) and type-II (5, 36).
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(1978)