These types of fused benzothiazole-pyrimidine compounds have been synthesized from 2-amino-benzothiazoles derivatives and [beta]-haloesters [29-31], orthoesters [32-35], allenic  and acetylenic groups [37-38], [beta]-ketosters [39-40], [alpha]-haloacids  and malonates
During the research, we found that this reaction suffer from the diversity of substrates, especially 1,3-dicarbonyl compounds such as malonates
, dibenzoylmethane, subjected to the reaction conditions, didn't give target products.
The dialkyl malonates
spacer not only provides two coordination sites but also enhances the less rigidity and preorientation of the compound and should therefore favor the encapsulation of a uranyl ion unit.
Gooijer, "Liquid chromatography coupled to nuclear magnetic resonance spectroscopy for the identification of isoflavone glucoside malonates
If there is a wish to keep the wood noncolored, organic UV absorbers (UVA) (families of benzophenone, benzotriazoles, triazine, malonates
...) alone or in combination with HALS (hindered amine light stabilizers), which shows synergistic photoprotection, are commonly used.
The systems discussed here include cyanoacrylates and methylene malonates
. Although not typically used for woodworking, novel one-part cyanoacrylate formulations have been developed for millwork applications offering improved sustained strength and durability.
Determination of isoflavone glucoside malonates
in Trifolium pratense L.
[20.] Tanase S., Katayama K., Yabunouchi N., Sadashima T., Tomotsu N., Ishihara N.: "Design of novel malonates
as internal donors for Mg[Cl.sub.2]-supported Ti[Cl.sub.4] type polypropylene catalyst and their mechanistic aspects, Part I".
9:40 USING MALONATES
IN THE PREPARATION OF VARIOUS AMINO ACIDS
Some of the more common chemical classes of organic UV absorbers are benzophenones, benzotriazoles, triazines, malonates
, and oxalanilides.
Recently, we reported the synthesis of 2-(4-aryl-5-benzoyl-6-phenyl-3,4-dihydropyrimidin-2(1H)-lidene) malonates
 and a methodology similar to the Eschenmoser sulfide contraction.
In all cases, the DTA diagram (Figure 5) shows (i) two endothermic effects corresponding to the redox reaction between nitrates and diol with the formation of carboxylate anions that coordinate to the metallic ions and (ii) two exothermic effects corresponding to the oxidative decomposition of the precursor (oxalate, malonate
, and succinate) and the combustion of organic chains intercalated in the silica network.