摘要:
A process for producing 2-cyclopropyl-4-(4-fluorophenyl)-quinoline-3-carbaldehyde, which entails oxidizing 2-cyclopropyl-4-(4-fluorophenyl)-3-hydroxymethylquinoline with a salt of a hypohalogenous acid in the presence of a quaternary ammonium salt.
摘要:
There is provided a process for producing an acetylene compound useful as an intermediate of pharmaceuticals, from 4-nitrofluorobenzene, in industrially and economically advantageous manner. Concretely, it is a method for producing an acetylene compound of formula (3) characterized by reacting 4-nitrofluorobenzene of formula (1) with an alkoxide of 2-methyl-3-butyn-2-ol of formula (2) at −20 to 10° C.
摘要:
There is provided a method for producing aminobenzopyran compound, which results in little wastes, has no influence on reactors and necessitates a simple work-up procedure. Concretely, it is a method for producing aminobenzopyran compound of formula (2) characterized by reducing a nitro group on 2,2-dimethyl 2H-1-benzopyran compound of formula (1) with hydrazine in the presence of a metal catalyst.
摘要:
A process for producing 2-cyclopropyl-4-(4-fluorophenyl)-quinoline-3-carbaldehyde important as intermediate for the synthesis of pharmaceuticals, efficiently from an unnecessary antipode, is provided.A process for producing 2-cyclopropyl-4-(4-fluorophenyl)-quinoline-3-carbaldehyde represented by the formula (III): which comprises treating a compound represented by the formula (I) or (II): (wherein A is —CHOH or —C(O)—, and R is a hydrogen atom, a C1-4 alkyl group which may be branched, a phenyl group, an alkali metal ion or an alkaline earth metal ion) with ozone, followed by reduction with an inorganic sulfur compound or by hydrogenation for reduction decomposition.
摘要:
There is provided a process for producing an acetylene compound useful as an intermediate of pharmaceuticals, from 4-nitrofluorobenzene, in industrially and economically advantageous manner.Concretely, it is a method for producing an acetylene compound of formula (3) characterized by reacting 4-nitrofluorobenzene of formula (1) with an alkoxide of 2-methyl-3-butyn-2-ol of formula (2) at −20 to 10° C.
摘要:
There is provided a method for producing aminobenzopyran compound, which results in little wastes, has no influence on reactors and necessitates a simple work-up procedure. Concretely, it is a method for producing aminobenzopyran compound of formula (2) characterized by reducing a nitro group on 2,2-dimethyl 2H-1-benzopyran compound of formula (1) with hydrazine in the presence of a metal catalyst.
摘要:
The speaker apparatus according to the invention is arranged in a manner that when the magnitude of an audio signal Sin increases temporarily and so a consumption power increases, a DC-DC converter reduces an output voltage Vout to thereby increase an output current Iout and further discharges a capacitor to thereby increase a current supplied to an amplifier. Thus, a power of 2.5 W or more supplied from a USB connection terminal can be temporarily supplied to the amplifier. Further, since the change of the voltage difference between the both ends of the capacitor can be made large, an amount of the electric charges discharged from the capacitor can be made large and so the size of the capacitor can be reduced.
摘要:
An image processing apparatus detecting a skin area indicating human skin from an image, includes: an irradiating section irradiating an object with first and second wavelength light; a first generating section installed with an image sensor at least having a first light receiving element receiving the first wavelength light and a second light receiving element receiving the second wavelength light and generating a first mosaic image based on a reflected light from the object when the object is irradiated with the first and second wavelength lights incident to the image sensor; a second generating section generating a first image obtained by a first interpolation process and a second image obtained by a second interpolation process, in respective pixels forming the first mosaic image; and a detecting section detecting the skin area on the basis of the first and second images.
摘要:
An optical connector fitted upon a tip end portion of an optical fiber ribbon and disposed to face an optical input and output terminators which are installed upon a substrate, and which optically connects between optical fibers of the optical fiber ribbon and each of the optical input and output terminators. The optical connector includes a block shaped connector main body which is disposed to face the optical input and output terminators. The connector main body includes a hollow optical fiber holding portion for holding mainly a coating portion of an optical fiber which is led generally in parallel with the surface of the substrate, a plurality of optical fiber apertures into which the tip end vicinity of the optical fibers are inserted and fixed and a concave spot for changing the optical axis comprising a reflective surface for changing the optical axis and formed in front of an exit of the optical fiber apertures, which causes the optical axis direction of the optical fiber to face the optical input and output terminators.
摘要:
A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).