47 results about "N-Methylformamide" patented technology

The present invention relates to methods for producing coronary vasodilation with little peripheral vasodilation by administering doses of a pharmaceutical composition including regadenoson, named (1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-aminopurin-2-yl}pyrazol-4-yl)-N-methylcarboxamide, — an adenosine A2A receptor agonist — to a human in an amount sufficient to increase the average coronary peak flow velocity by at least about 16.5 cm / sec.

An electrophotographic photosensitive member wherein a charge generating layer of the electrophotographic photosensitive member includes a gallium phthalocyanine crystal in which an organic compound is contained, wherein the organic compound is at least one compound selected from the group consisting of dimethylsulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide and N-methylpyrrolidone, the content of the organic compound is 0.1% by mass or more and 2.0% by mass or less based on a gallium phthalocyanine in the gallium phthalocyanine crystal, and a charge transporting layer of the electrophotographic photosensitive member includes a polycarbonate resin having structural units represented by formulae (1) and (2).

Provided is an electrophotographic photosensitive member, including in the following order: a support; a charge-generating layer; and a charge-transporting layer, in which: the charge-generating layer includes a gallium phthalocyanine crystal in which an organic compound is contained; the organic compound is at least one compound selected from the group consisting of dimethyl sulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide, and N-methylpyrrolidone; a content of the organic compound is 0.1% by mass or more and 1.5% by mass or less with respect to a mass of gallium phthalocyanine in the gallium phthalocyanine crystal; and the charge-transporting layer comprises at least one compound selected from the group consisting of a compound represented by the formula (1), a compound represented by the formula (2), a compound represented by the formula (3), and a compound represented by the formula (4).

The present invention relates to: a photoresist removing stripper composition which does not comprise N-methylformamide, N,N′-dimethylcarboxamide, or the like, but which has outstanding stripping capacity and rinsing capacity, and which minimizes time-dependent deterioration of physical properties; and to a method for stripping a photoresist using the composition. The photoresist-removing stripper composition comprises: one or more types of amine compounds; N,N′-diethylcarboxamide; and a protic organic solvent of alkyleneglycol or alkyleneglycol monoalkylether.

The invention relates to the field of organic synthesis and medical intermediate preparation and especially relates to a method for preparing a substituted indole-3-methanal compound. The method comprises the following steps that N,N-dimethylformamidodimethylacetal or N,N-methylformamidodiethylacetal and substituted 2-nitrotoluene undergo a reflux reaction to produce beta-dimethylamino-2-nitrostyrene; beta-dimethylamino-2-nitrostyrene and a mixed solution of hydrazine and alcohol undergo a reaction to produce a substituted indole; and the substituted indole, dimethylformamide (DMF) and phosphorus oxyhalogen undergo a reaction to produce the substituted indole-3-methanal compound. Yields of all processes of the method provided by the invention are more than 90%. A total yield of the method is more than 80%.

The invention relates to the technical field of extraction of alkaline / non-alkaline nitrogen from simulated gasoline, and discloses a low eutectic solvent and a method for extracting the alkaline / non-alkaline nitrogen from the simulated gasoline. The low eutectic solvent for extracting the alkaline / non-alkaline nitrogen from the simulated gasoline is prepared by heating a hydrogen bond receptor and a hydrogen bond donor according to a molar ratio of 1:1 while stirring, and performing a reaction, wherein the hydrogen bond receptor is N-methylacetamide or N-methylformamide and the hydrogen bonddonor is 2,3-dibromopropionic acid or 2,3-dichloropropionic acid. When the low eutectic solvent is used for extracting the alkaline / non-alkaline nitrogen from the simulated gasoline, the extracting efficiency is high and the using amount of an extracting agent is low, so that achievement of industrialization of extraction of the non-alkaline nitrogen from the gasoline through the low eutectic solvent becomes possible.

The invention relates to a multifunctional eraser composition. The composition is prepared through using 25-35 parts by weight of a polyvinyl chloride resin slurry, 15-25 parts by weight of dioctyl phthalate, 4-8 parts by weight of calcium carbonate, 0.1-0.4 parts by weight of a stabilizing agent, 15-25 parts by weight of calcium stearate, 10-15 parts by weight of sodium silicate, 0.2-0.8 parts by weight of dichlorobenzene, 0.1-0.4 parts by weight of a nonionic surfactant, 15-25 parts by weight of N-methylformamide and 10-15 parts by weight of a foaming agent. The making method of the composition comprises the following steps: mixing the above components, uniformly stirring, pressurizing at 120DEG C, heating to 165DEG C, dumping the obtained mixture into a mold, and carrying out pressure forming to obtain the composition. The multifunctional eraser composition is convenient to use, and can eliminate a plurality of stains comprising pen and Chinese writing brush writings and pencil and ball pen writings.

The invention relates to the field of solvent recycling, in particular to a method for recycling N-methylformamide and diethylene glycol monomethyl ether in paint remover waste liquid. The method adopts an extraction dividing-wall rectifying method to recycle N-methylformamide and diethylene glycol monomethyl ether in paint remover waste liquid; the paint remover waste liquid is rectified and separated through a main tower and an auxiliary tower of an extraction dividing-wall rectifying tower, and N-methylformamide crude product and diethylene glycol monomethyl ether crude product are obtainedrespectively; the N-methylformamide crude product passes through a N-methylformamide refining tower and a metal removing tower to obtain N-methylformamide, and the diethylene glycol monomethyl ethercrude product passes through a diethylene glycol monomethyl ether refining tower and the metal removing tower to obtain diethylene glycol monomethyl ether. The method can be adopted to conduct continuous production; the separation of the N-methylformamide and the diethylene glycol monomethyl ether is achieved; the method has the advantages that the purity of separated products is high; the technological procedure is simple; energy consumption and equipment investment in the separation process can be effectively lowered at the same time.

The present invention relates to a novel process for the preparation of (1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl)-6-aminopurin-2-yl}pyrazole-4-yl)-N-methylcarboxamide.

Disclosed is a mixture of fluoroalkyl alcohols represented by the general formulae: CF3(CF2)n(CH═CF)a(CF2CF2)b(CH2CH2)cOH [Ia] and CF3(CF2)n-1(CF═CH)aCF2(CF2CF2)b(CH2CH2)cOH [Ib], wherein n is an integer of 1 to 5, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3. This fluoroalkyl alcohol mixture is produced by the reaction of a fluoroalkyl iodide represented by the general formula: CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2CH2)cI [II], with N-methylformamide, followed by hydrolysis in the presence of a basic compound.

Disclosed is a polyfluoroalkyliodide represented by the following general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOR (R: H, a (meth)acrylic acid group; n:1-6; a:1-4; b:1-3; c:1-3), or a (meth)acrylic acid derivative thereof. A polyfluoroalkyliodide can be produced by reacting a fluoroalkyl iodide represented by the following general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cI with N-methylformamide, and then hydrolyzing the resulting in the presence of an acid catalyst. A (meth)acrylic acid derivative of such a polyfluoroalkyl alcohol (R: a (meth)acrylic acid group) can be produced by reacting a (meth)acrylic acid with the polyfluoroalkyl alcohol.

The present invention relates to a photoresist-removing stripper composition which does not comprise N-methylformamide, N, N'-dimethylcarboxamide, or the like, showing reproductive toxicity, but is capable of showing excellent stripping capacity and rinsing capacity and is capable of minimizing time-dependent deterioration of physical properties; and a method for stripping a photoresist using the composition. The photoresist-removing stripper composition comprises: one or more types of amine compounds; N, N'-diethylcarboxamide; and a protic organic solvent of alkyleneglycol monoalkylether or alkyleneglycol.