| Patent Number |
Title Of Patent |
Date Issued |
| 7342116 |
Process for producing heterocyclic aldehyde |
March 11, 2008 |
| A process is disclosed for preparing a heterocyclic aldehyde by oxidizing a heterocyclic alcohol with high selectivity and high yield. Specifically, the heterocyclic aldehyde is prepared by reacting a heterocyclic compound having at least one hydroxymethyl group bonded to a carbon at |
| 6444815 |
Method for producing heteroaromatic aldehydes |
September 3, 2002 |
| There is provided a process for preparing a heteroaromatic aldehyde by catalytic reaction of alkyl-substituted heteroaromatic compound with molecular oxygen in a gaseous phase in the presence of a catalyst, which comprises employing an oxide containing vanadium, phosphorus, aluminium |
| 6271382 |
Process for producing organic compound having nitroxide free radical |
August 7, 2001 |
| An organic compound having a nitroxide free radial of the formula (2) is prepared by reacting a cyclic secondary amine having a steric hindrance of the formula (1) with a peroxide in the presence of at least 1 part by weight of an organic compound having a cyano group per 1 part by weigh |
| 6197961 |
Process for preparing acid salts of .gamma.-(piperidyl)butyric acid |
March 6, 2001 |
| At least one of a Rh catalyst, a Pd catalyst or a Ru catalyst is used as a catalyst in preparing the salt of .gamma.-(piperidyl)-butyric acid (2) by hydrogenating the salt of .gamma.-(pyridyl)butyric acid (1) [preferably the salt of .gamma.-(pyridyl)butyric acid (1) obtained in the u |
| 6111113 |
Process for the preparation of 2,3,5-collidine and 2-ethyl-5-methylpyridine |
August 29, 2000 |
| 2,3,5-Collidine and 2-ethyl-5-methylpyridine are prepared in high yields at the same time by reacting methacrolein and methyl ethyl ketone with ammonia in a gas phase in the presence of a catalyst which comprises silica-alumina containing at least one element selected from the group |
| 5922873 |
Process for preparing N-tert-butyl-2-pyrazinecarboxamide and N-tert-butyl-2-piperazinecarboxamid |
July 13, 1999 |
| A process for preparing a N-tert-butyl-2-pyrazinecarboxamide having the formula (2): ##STR1## which comprises reacting a cyanopyrazine having the formula (1): ##STR2## with tert-butyl alcohol in the presence of sulfuric acid and a process for preparing a N-tert-butyl-2-pipera |
| 5734055 |
Process for preparing N-tert-butyl-2-pyrazinecarboxamide and N-tert-butyl-2-piperazinecarboxamid |
March 31, 1998 |
| A process for preparing a N-tert-butyl-2-pyrazinecarboxamide having the formula (2): ##STR1## which comprises reacting a cyanopyrazine having the formula (1): ##STR2## with tert-butyl alcohol in the presence of sulfuric acid and a process for preparing a N-tert-butyl-2-pipera |
| 5693806 |
Process for producing pyrazine compounds |
December 2, 1997 |
| A process for producing a pyrazine compound of the general formula (3): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent a hydrogen atom or a lower alkyl group, which comprises catalytically reacting in a gaseous phase a diamine compound of the general formula: ## |
| 5668281 |
Process for preparing tertiary amine-N-oxide |
September 16, 1997 |
| A process for preparing a tertiary amine-N-oxide which comprises reacting a tertiary amine with a peroxide in the presence of a catalyst comprising an oxide containing silicon and titanium atoms. According to the process of the present invention, a tertiary amine-N-oxide can be obtained |
| 5496949 |
Pyrazine derivatives |
March 5, 1996 |
| This invention is to provide a pyrazine derivative capable of developing excellent therapeutic efficacy in infectious diseases caused by various acid-fast bacteria.The pyrazine derivative of this invention is represented by the general formula ##STR1## wherein R.sub.1 is an octyl |
| 5424437 |
Process for preparing a 2-chloro-5-aminomethyl-pyridine |
June 13, 1995 |
| A 2-Chloro-5-aminomethylpyridine is prepared in one step by reacting 2-chloro-5-trichloromethylpyridine with an amine and hydrogen in the presence of a hydrogenation catalyst. |
| 5300650 |
Process for producing aminomethylpyridine having a chlorine atom at .alpha. - |
April 5, 1994 |
| A process for producing an aminomethylpyridine having a chlorine atom at the .alpha.-position, for example, 2-chloro-5-aminomethylpyridine by subjecting a cyanopyridine having a chlorine atom at the .alpha.-position, for example, 2-chloro-5-cyanopyridine, to a catalytic reduction in the |
| 5208380 |
Process for preparing monoallylamine |
May 4, 1993 |
| A process for preparing monoallylamine represented by the formula (II):which comprises: catalytically reacting isopropanolamine represented by the formula (I): ##STR1## in a gaseous phase in the presence of a catalyst having dehydrating property. According to the preparation process |
| 5180792 |
Amine-cured epoxy resin with phenoxyethyl (meth) acrylates |
January 19, 1993 |
| Disclosed is a curable epoxy resin composition which is effectively cured at ambient temperature and when cured has excellent adhesive strength and good water resistance. The epoxy resin composition comprises:(a) an epoxy resin having at least two epoxy groups in one molecule,(b) a monofunct |
| 5114604 |
Resin bonded permanent magnet and a binder therefor |
May 19, 1992 |
| A curable resin binder comprising an epoxy resin which is a solid at room temperature, an epoxy resin curing agent which is inactive at room temperature, and as a curing accelerator, a pyridine derivative containing at least one hydroxyl group in a molecule. Also disclosed is a resin |
| 4931561 |
Process for preparing nitriles |
June 5, 1990 |
| A heteroaromatic nitrile is prepared in high conversion and yield by catalytically reacting an alkyl-substituted heteroaromatic compound with molecular oxygen and ammonia in the presence of a catalyst having the following composition:wherein x, y, z and w represent atomic ratios of phosp |
| 4910270 |
Composition containing epoxy resin, di(meth)acrylate, N-heterocylic compound and polyamine |
March 20, 1990 |
| Disclosed is a curable epoxy resin composition having excellent flexibility and toughness, comprising (a) an epoxy resin, (b) a glycol type di(meth)acrylate, (c) a nitrogen containing heterocyclic compound, and (d) a polyamine having at least two amino groups with an active hydrogen. The |
| 4812566 |
Process for preparing 1-dodecylazacycloheptane-2-one |
March 14, 1989 |
| Disclosed is a process for preparing 1-dodecylazacyclo-heptane-2-one, the process comprising reacting azacylcloheptane-2-one with dodecyl halide in a substantially non-aqueous system in the presence of a phase-transfer catalyst represented by the formula ##STR1## wherein R.sub.1, |
| 4810794 |
Process for producing pyridine bases |
March 7, 1989 |
| Process for producing pyridine bases by reacting an aliphatic aldehyde and/or ketone with ammonia in gaseous phase in the presence of a catalyst, characterized by using a catalyst which is obtained by modifying a zeolite having an atomic ratio of Si to Al, Fe and/or Ga of 12 to 1,000 and |
| 4778890 |
Process for preparing nitriles |
October 18, 1988 |
| A heteroaromatic nitrile is prepared in a high selectivity and yield by catalytically reacting an alkyl-substituted heteroaromatic compound with molecular oxygen and ammonia in a molar ratio of oxygen to ammonia of not larger than 1.6:1 in a gaseous phase in the presence of a catalyst |
| 4658032 |
Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine |
April 14, 1987 |
| Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine which is characterized by reacting 3,5-lutidine as the starting material with an aliphatic alcohol having 1 to 4 carbon atoms, in the presence of a catalyst for hydrogenation at a temperature of 200.degree. C. or hi |
| 4418221 |
Process for treating aqueous solutions containing phenols |
November 29, 1983 |
| In removing a phenol from an aqueous solution containing the phenol, the phenol could be extracted quite effectively regardless of concentration of the phenol by using, as extracting solvent, a nitrogen-containing heterocyclic compound having a total carbon number of 9 or more either |
| 4323702 |
Process for recovering a carboxylic acid |
April 6, 1982 |
| A process for recovering carboxylic acids with a material of which the main component is a polymeric compound having a pyridine skeletal structure and a crosslinked structure, followed by desorbing the captured carboxylic acids by use of a desorbing agent. |
| 4314914 |
Catalyst supporting bed |
February 9, 1982 |
| A catalyst supporting bed in a vertical reactor for production of formaldehyde by gas phase catalytic dehydrogenation of methanol in the presence of a solid metal catalyst, characterized in that the bed is made of a nickel alloy having a nickel content of not less than 25% by weight |
| 4303531 |
Method for adsorbing and recovering phenols |
December 1, 1981 |
| The present invention relates to a: (a) material for adsorbing and recovering phenols which comprises as its main component a cross-linked polyvinylpyridine resin and (b) a method of recovering phenols using the above material. |
| 4202806 |
Stabilization of chlorine-containing resins |
May 13, 1980 |
| Stabilizers for chlorine-containing resins, derived from pentaerythritol and/or polypentaerythritols, which comprises at least one member selected from (1), a dehydration condensation product of pentaerythritol or polypentaerythritol, (2) a partial esterification product of pentaeryt |
| 4199470 |
Material for recovering uranium and method for recovering a uranium solution of high purity and |
April 22, 1980 |
| Uranium is recovered from its solution through contact with a uranium-recovering material of higher resistance to water and higher mechanical strength comprising a weakly basic anion exchange resin having pyridine nuclei at its main chain or side chain, and a crossed-linked polymer s |
| 4182880 |
1,8-Naphthyridine compounds and process for preparing the same |
January 8, 1980 |
| 1,8-Naphthyridine compounds and a process for preparing chelated 1,8-naphthyridine derivatives and 1,8-naphthyridine derivatives which are pharmacautically useful compounds. Chelated 1,8-naphthyridine derivatives of the general formula [I]: ##STR1## wherein X and Y are independen |
| 3946020 |
Process for producing pyridine bases |
March 23, 1976 |
| Pyridine bases are produced in higher yield from at least one of aliphatic carbonyl compounds and ammonia by reaction at 350.degree. to 550.degree.C under the atmospheric pressure at a space velocity of 100 to 10,000 hr.sup.-.sup.1 in the presence of a catalyst prepared by immersing |
