The current invention belongs to the technical fields of fine chemicals and related chemistry, and provides a preparation method for butadiene derivatives. Arylacetylenes and derivatives using as raw materials react in an anhydrous organic solvent in the presence of a metal catalyst and an additive, and are converted into 2,3-disubstituted-1,3-butadiene derivatives. The current invention has some beneficial characteristics such as cheap and readily available raw material, mild reaction conditions, environmentally friendly property and possibility of realizing industrialization, and obtains the 1,3-butadiene derivatives in high yields. The 1,3-butadiene derivatives synthesized by this method can be further functionalized into various compounds which have potential applications in development and research of natural products, functional materials and fine chemicals.

A compound includes two or more structures shown by the following general formula (1-1) in the molecule,

##STR00001##

Ar represents an aromatic ring or one that contains at least one nitrogen atom and/or sulfur atom optionally having a substituent, and two Ars are optionally bonded with each other to form a ring structure; the broken line represents a bond with Y; Y represents a divalent or trivalent organic group having 6 to 30 carbon atoms that contains an aromatic ring or a heteroaromatic ring optionally having a substituent, the bonds of which are located in a structure of the aromatic ring or the heteroaromatic ring; R represents a hydrogen atom or a monovalent group having 1 to 68 carbon atoms. This compound can be cured even in an inert gas not only in air atmosphere without forming byproducts, and can form an organic under layer film.

A nonlinear light absorption material includes a compound represented by the following formula (1) as a main component:

##STR00001##

in the formula (1), R.sup.1 to R.sup.10 are each independently a hydrogen atom, a halogen atom, a saturated hydrocarbon group, a halogenated alkyl group, an unsaturated hydrocarbon group, a hydroxyl group, a carboxyl group, an alkoxycarbonyl group, an aldehyde group, an acyl group, an amide group, a nitrile group, an alkoxy group, an acyloxy group, a thiol group, an alkylthio group, a sulfonate group, an acylthio group, an alkylsulfonyl group, a sulfonamide group, a primary amino group, a secondary amino group, a tertiary amino group, or a nitro group.

A nonlinear light absorption material includes a compound represented by the following formula (1) as a main component:

##STR00001##

in the formula (1), R.sup.1 to R.sup.10 are each independently a hydrogen atom, a halogen atom, a saturated hydrocarbon group, a halogenated alkyl group, an unsaturated hydrocarbon group, a hydroxyl group, a carboxyl group, an alkoxycarbonyl group, an aldehyde group, an acyl group, an amide group, a nitrile group, an alkoxy group, an acyloxy group, a thiol group, an alkylthio group, a sulfonate group, an acylthio group, an alkylsulfonyl group, a sulfonamide group, a primary amino group, a secondary amino group, a tertiary amino group, or a nitro group.

The present invention relates to a method for performing a condensation reaction by heterogeneous catalysis using a surface-reacted calcium carbonate catalyst and the use of a dry surface-reacted calcium carbonate as a catalyst. The condensation reaction involves reacting a first substrate comprising a CO double bond and a second substrate comprising an activated hydrogen to obtain a reaction mixture comprising one or more condensation products and one or more condensation byproducts.

The present invention relates to a method for performing a condensation reaction by heterogeneous catalysis using a surface-reacted calcium carbonate catalyst and the use of a dry surface-reacted calcium carbonate as a catalyst. The condensation reaction involves reacting a first substrate comprising a CO double bond and a second substrate comprising an activated hydrogen to obtain a reaction mixture comprising one or more condensation products and one or more condensation byproducts.

The present teachings are directed at 1,1-di substituted alkene monomers (e.g., methylene beta-ketoester monomers), methods for producing the same, polymerizable compositions including a methylene beta-ketoester monomer, and polymers, compositions and products formed therefrom. The monomer preferably is a high purity monomer. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester may be reacted with a source of formaldehyde. The methylene beta-ketoester monomers may be used in monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).

The present teachings are directed at 1,1-di substituted alkene monomers (e.g., methylene beta-ketoester monomers), methods for producing the same, polymerizable compositions including a methylene beta-ketoester monomer, and polymers, compositions and products formed therefrom. The monomer preferably is a high purity monomer. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester may be reacted with a source of formaldehyde. The methylene beta-ketoester monomers may be used in monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).

A solid-supported catalyst ligand which chelates palladium (II) species to form a complex that functions as a heterogeneous catalyst that is stable and can be recycled without significantly losing any catalytic activity in a variety of chemical transformations, a method for producing the solid-supported catalyst ligand and a method for catalyzing a palladium cross-coupling reaction, such as the Suzuki-Miyaura, Mizoroki-Heck, and Sonagashira reactions.

A solid-supported catalyst ligand which chelates palladium (II) species to form a complex that functions as a heterogeneous catalyst that is stable and can be recycled without significantly losing any catalytic activity in a variety of chemical transformations, a method for producing the solid-supported catalyst ligand and a method for catalyzing a palladium cross-coupling reaction, such as the Suzuki-Miyaura, Mizoroki-Heck, and Sonagashira reactions.