摘要:
A problem of the present invention is to provide an economical process with minimized toxicity for producing an aromatic compound having a variety of substituents such as various alkyl groups, and the problem is solved by a process for production of an aromatic compound represented by formula (1) below, which comprises reacting a compound represented by formula (2) below with an aromatic magnesium reagent represented by formula (3a) below in the presence of an iron catalyst and a diamine compound: wherein R is an optionally substituted hydrocarbon group or a C3-C10 saturated or unsaturated ring group; A is an optionally substituted C4-C20 aromatic group or an optionally substituted heteroaromatic group; X is a halogen atom or a sulfonic acid ester; and Y1 is bromine, iodine, chlorine or a carbanion ligand.
摘要:
A problem of the present invention is to provide an economical process with minimized toxicity for producing an aromatic compound having a variety of substituents such as various alkyl groups, and the problem is solved by a process for production of an aromatic compound represented by formula (1) below, which comprises reacting a compound represented by formula (2) below with an aromatic magnesium reagent represented by formula (3a) below in the presence of an iron catalyst and a diamine compound: wherein R is an optionally substituted hydrocarbon group or a C3-C10 saturated or unsaturated ring group; A is an optionally substituted C4-C20 aromatic group or an optionally substituted heteroaromatic group; X is a halogen atom or a sulfonic acid ester; and Y1 is bromine, iodine, chlorine or a carbanion ligand.
摘要:
The invention provides a polycyclic aromatic compound or a salt thereof having a partial structure represented by the following general formula (I): wherein X, ring A, ring B, ring C, and ring D are as defined in the specification.
摘要:
The present invention provides a process for efficiently producing an alkylated aromatic compound in good yield, by a cross-coupling reaction between an alkyl halide and an aromatic magnesium reagent. A process for producing an aromatic compound represented by Formula (1): R—Ar′ (1) wherein R is a hydrocarbon group, and Ar′ is an aryl group; the process comprising: reacting a compound represented by Formula (2): R—X (2) wherein X is a halogen atom, and R is as defined above, with a magnesium reagent represented by Formula (3): Ar′—MgY (3) wherein Y is a halogen atom, and Ar′ is as defined above, in the presence of a catalyst for cross-coupling reactions comprising an iron compound and a bisphosphine compound represented by Formula (4): wherein Q is a divalent group derived from an aromatic ring by removing two hydrogen (H) atoms on adjacent carbon atoms; and each Ar is independently an aryl group.
摘要:
The invention provides a polycyclic aromatic compound or a salt thereof having a partial structure represented by the following general formula (I): wherein X, ring A, ring B, ring C, and ring D are as defined in the specification.
摘要:
[Issues to be Solved] To provide an aluminum ribbon for ultrasonic bonding, is able to realize the high bonding strength and is able to maintain defined level of bonding strength, during several ten thousand bonding cycles.[Means to be Solved] An aluminum ribbon for ultrasonic bonding is consisted aluminum metal or aluminum based alloy, the purity of aluminum is more than 99.99 wt %, and total amount of organic carbon non-ionic surfactant less than 500 molecular weight vaporized and adhered is 100-1,000 μg/m2 on the mirror finished bright surface of aluminum ribbon.
摘要:
Semiconductor chip manufacturing methods and devices are disclosed which store dicing data corresponding to the kinds of wafers, when data indicating the wafer kinds are input, read out the dicing data corresponding to the data input, and cut a wafer set at a given position to a desired shape in accordance with the dicing data to thereby manufacture a semiconductor chip. The manufacturing methods and devices include read means for inputting the data indicating the wafer kinds. According to the manufacturing method and device, a symbol indicating the kind of the wafer is recorded as an identification symbol readable by the read means and on a member moving together with the wafer in a chip manufacturing process that is not part of the product being manufactured, and preferably, is also not part of a recyclable carrier for the wafer to be diced. When the data indicating the kind of the wafer is input, the identification symbol recorded in the above-mentioned member is read out by the read means.
摘要:
Disclosed is a triazole derivative(s) represented by the general formula (1) below or a pharmacologically acceptable salt(s) thereof. Also disclosed are a prodrug(s) of such a triazole derivative(s) and an HSP90 inhibitor(s) containing any one of them as an active constituent. (1) (In the formula, X represents a halogen atom, an optionally substituted alkyl group, an optionally substituted alkynyl group or the like; Y represents a mercapto group, a hydroxyl group, an optionally substituted sulfonyl group, an optionally substituted amino group or the like; and R represents an optionally substituted aryl or alkyl group or the like.)
摘要:
Produced is a silicon carbide-coated carbon base material in which a silicon carbide coating is densely and uniformly formed on the surface of a carbon base material, such as graphite. A production process includes the steps of: preparing a carbon base material the surface of which has basal plane sites of an SP2 carbon structure with no dangling bond and edge plane sites of an SP2 carbon structure with a dangling bond; and reacting the surface of the carbon base material with SiO gas in an atmosphere at a temperature of 1400° C. to 1600° C. and a pressure of 1 to 150 Pa to form silicon carbide, whereby the carbon base material coated with silicon carbide is produced.
摘要:
According to this invention, there are provided a stopper stopping forward pivoting of a seat back at the position of a forwardly tilted state, a stopper operation mechanism, a reclining mechanism switching the seat back between a free state in which it can be pivoted with respect to a seat cushion and a lock state in which it cannot be pivoted with respect thereto, a reclining lever, and a connection lever. Through operation of operation levers the seat back is placed in the free state via the stopper operation mechanism, the connection lever, and the reclining lever, and the stopper is moved via the stopper operation mechanism. And, between the stopper operation mechanism and the reclining lever is provided a retention mechanism that retains the stopper at a position to which the stopper is moved.