K. Mori, J. Matsui, M. Bando
Apr 7, 1997
Citations
0
Influential Citations
21
Citations
Journal
Tetrahedron Letters
Abstract
Abstract The synthesis of the racemates of the structure 1 proposed for sorgolactone and its three stereoisomers was achieved by confirming the stereostructures of the intermediate (±)- 6 and the final product (±)- 1 by X-ray analyses. Biological evaluation of the products employing clover broomrape ( Orobanche minor ) seeds revealed that the order of activity as a germination stimulant was (±)-strigol ≈ (±)- 9 ≥ (±)- 12 > (±)- 1 > (±)- 11 . © 1997 Elsevier Science Ltd.