Provided are: a polymer-supported phosphane compound exhibiting excellent catalytic reaction activity; a complex including the compound and a transition metal; and a catalyst including the complex. This polymer compound includes: units of threefold styrene cross-linked phosphane; and styrene units having substituent groups (R) in position 4 (provided that R represents hydrogen, a C1-6 lower alkyl group, a C1-6 lower alkoxy group, or a polar functional group). In the formula in which the polymer compound includes structure (1), PS represents a polystyrene unit chain including the styrene units having the substituent groups (R). The complex includes the polymer and a transition metal. The catalyst for an organic compound coupling reaction includes the complex. ##STR00001##

The present disclosure relates to a method for preparing a compound of formula (I). ##STR00001##
In the compound of formula (I), n may be 0 to 5 and each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 may be independently selected from the group consisting of H, O-Alkyl, halo, alkyl, CN, or NO.sub.3.

A catalytic process for the metal-free functionalization of sp.sup.2-carbons is described herein. The catalytic process is suitable for forming borylated alkenes, arenes and heteroarenes and comprises the use of catalysts comprising a Frustrated Lewis Pair (FLP).

There are provided a compound capable of being a novel ligand allowing regioselective borylation to be performed in the aromatic borylation reaction, and a catalyst using the same compound. There is provided a bipyridyl compound represented by a general formula (1): (wherein A represents a single bond, a vinylene group or an ethynylene group;

X represents an oxygen atom or a sulfur atom;

n pieces of R.sup.1 may be the same or different, and R.sup.1 represents a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted aryloxy group, an optionally substituted amino group, a cyano group, a nitro group, or an alkoxycarbonyl group, or two adjacent R.sup.1 may form a saturated or unsaturated ring structure optionally containing a hetero atom together with the carbon atoms bonded to the two R.sup.1;

R.sup.2 represents a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, or an optionally substituted aryloxy group; and

n represents a number of 1 to 4).

##STR00001##

There are provided a compound capable of being a novel ligand allowing regioselective borylation to be performed in the aromatic borylation reaction, and a catalyst using the same compound. There is provided a bipyridyl compound represented by a general formula (1): (wherein A represents a single bond, a vinylene group or an ethynylene group; X represents an oxygen atom or a sulfur atom; n pieces of R.sup.1 may be the same or different, and R.sup.1 represents a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted aryloxy group, an optionally substituted amino group, a cyano group, a nitro group, or an alkoxycarbonyl group, or two adjacent R.sup.1 may form a saturated or unsaturated ring structure optionally containing a hetero atom together with the carbon atoms bonded to the two R.sup.1; R.sup.2 represents a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, or an optionally substituted aryloxy group; and n represents a number of 1 to 4). ##STR00001##

The present invention concerns a process for creating a Carbon-Carbon bond (CC) or a Carbon-Heteroatom bond (CHE) by reacting a compound carrying a leaving group with a nucleophilic compound carrying a carbon atom or a heteroatom (HE) that can substitute for the leaving group, creating a CC or CHE bond, wherein the reaction takes place in the presence of an effective quantity of a. a catalytic system comprising a ligand and at least a metal-based catalyst, such a metal catalyst being chosen among iron or copper compounds proviso that only a single metal is present.

The present invention describes chemical systems and methods for silylating heteroaromatic organic substrates using at least alkoxide base, preferably a potassium alkoxide base and at least one organodisilane and (b) at least one alkoxide base. Both methods and compositions for affecting these transformations are disclosed.

The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.

The present invention relates to an n-heterocyclic carbene (NHC) type palladium catalyst and its preparation method as well as applications. Its preparation process is as below: select glyoxal as the raw material to synthesize glyoxaldiimine in the presence of Lewis acid or Bronsted acid, and then react with paraformaldehyde to get the NHC type ligand. Use palladium.sup.(II) to react with the compound containing carbon-nitrogen double bonds to get palladium.sup.(II) cyclic dimer; make the palladium cyclic dimer and the NHC type ligand coordinated to get the NHC type palladium catalyst. The palladium catalyst with a brand new structure according to the present invention, boasts high activity and multi-purpose. In addition, it shows excellent reaction activity in a lot of catalytic-coupling reactions including Suzuki-Miyaura, Heck, Buchwald-Hartwig, Kumada-Tamao-Corriu, Sonogashira, Negishi and -ketone arylation reactions, and some reactions even can be carried out with the presence of an extremely low concentration of catalyst, exhibiting favorable industrialization prospect.

In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions.