Strigolactone Analogues with a D-Ring Modified at C-2.

Strigolactones (SLs) are important new plant hormones that receive much attention in current plant science. SLs are produced by many plants and are exuded by the root system. SLs are, amongst others, germination stimulants for seed of parasitic weeds.

Strigolactone analogues and mimics derived from phthalimide, saccharine, p-tolylmalondialdehyde, benzoic and salicylic acid as scaffolds.

A series of new strigolactone (SL) analogues is derived from simple and cheap starting materials. These SL analogues are designed using a working model. The first analogue is a modified Nijmegen-1, the second contains saccharin as substituent (bio-isosteric replacement of a carbonyl in Nijmegen-1 by a sulfonyl group) and the third one is derived from p-tolylmalondialdehyde.

Single step synthesis of strigolactone analogues from cyclic keto enols, germination stimulants for seeds of parasitic weeds.

The single step synthesis of a newly designed series of strigolactones (SLs) from cyclic keto enols is described. The germinating activity of these SL analogues towards seeds of the parasitic weeds Striga and Orobanche spp. is reported.

Strigolactone analogs derived from ketones using a working model for germination stimulants as a blueprint.

Strigolactones are important signaling compounds in the plant kingdom. Here we focus on their germination stimulatory effect on seeds of the parasitic weeds Striga and Orobanche spp. and more particularly on the design and synthesis of new active strigolactone analogs derived from simple cyclic ketones.

Structure and function of natural and synthetic signalling molecules in parasitic weed germination.

The structures of naturally occurring germination stimulants for seeds of the parasitic weeds Striga spp. and Orobanche spp. are described.