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Matches 851 - 900 out of 4,769

Document Document Title
JPH0816091B2
A catalytic process for preparing cyclohexanone-oxime by reacting cyclohexanone with NH₃ and H₂O₂ in the liquid phase, wherein the catalyst substantially consists of a highly crystalline substance containing SiO₂ and having a zeo...  
JPH0844024A
PURPOSE: To obtain a hydroxylamine oxidation preventing agent which is odorless and is stable after the agent is subjected to oxidation by incorporating a specific hydroxylamine compd. into the agent. CONSTITUTION: The hydroxylamine comp...  
JPH0813796B2  
JPH0813795B2
Compounds of the formula (I) in which R is alkyl having up to 4 carbon atoms, n has an average value of at least 9, X is a radical of the formula -C(=O)-(NH-SO2)m- in which m is 0 or 1 and, if m is 1, the carbonyl group may be bonded to ...  
JPH0813759B2  
JPH0811748B2
The novel urethanes, in addition to at least one perfluoroalkyl group, also contain epichlorohydrin groups and dialcohol radicals in the molecule. They are prepared by reacting a fluorine-containing alcohol with epichlorohydrin to give t...  
JPH089588B2
The novel urethanes correspond to the formula I below in which a denotes a number from 5 to 17 and b denotes a number from 1 to 7. These urethanes are prepared by reacting the corresponding perfluoroalkylethanol/epichlorohydrin adducts w...  
JPH085850B2
The new (meth)-acrylic acid derivatives of triisocyanates can be prepared by reacting appropriate triisocyanates with hydroxyalkyl (meth)-acrylates. The compounds can be employed as monomers for use in the dental field.  
JPH085851B2
A process for the preparation of an N-aromatic-N min -acyl urea, which comprises reacting an aromatic nitro compound with a primary or secondary amide and carbon monoxide, in the presence of a catalyst comprising a selected Group VIII me...  
JPH085849B2
An improved process for the preparation of aralkyl monourethanes comprises the acid-catalyzed selective reaction of a divinyl aromatic hydrocarbon with an alkyl ester of carbamic acid, at low temperature. A high ratio of monourethane to ...  
JPH085781B2
Pharmacologically active catechol derivatives of formula I I wherein R1 and R2 independently comprise hydrogen, alkyl, acyl, optionally substituted aroyl, lower alkylsulfonyl or alkylcabamoyl or taken together form a lower alkylidene or ...  
JPH082858B2
Biphenyl hydroxamic acids are provided having the structure wherein m is 1 to 7, X is S, O or NH, R is H, lower alkyl, aryl, aralkyl or cycloalkyl and R1 is H, lower alkyl, aryl, aralkyl, cycloalkyl, alkanoyl or aroyl. These compounds ar...  
JPH082859B2
PURPOSE:To enable size-reduction of a stripping-type synthesis pipe in the conversion of a urea synthesis process from a nonstripping-type solution circulation process to a stripping-type process, by using a synthesis pipe of the solutio...  
JPH082853B2  
JPH082855B2
Novel magnetic resonance imaging agents methods utilize complexes of paramagnetic ions with alkoxyalkylamide deriviatives of diethylenetriaminepentaacetic acid ("DTPA") or ethylenediaminetetyraacetic acid ("EDTA"). These novel imaging ag...  
JPH08798B2
A renin inhibiting compound of the formula: wherein A is a substituent; W is C=O or CHOH; U is CH2 or NR2, provided that when W is CHOH then U is CH2; R1 is loweralkyl, cycloalkylmethyl, benzyl, 4-methoxybenzyl, halobenzyl, (1-naphthyl)m...  
JPH083088A
PURPOSE: To obtain a stabilizer consisting of a hydroxylamine, capable of giving high-purity bisphenol A which is low in discoloration, excellent in hue and suitable for optical use. CONSTITUTION: This stabilizer consists of a hydroxylam...  
JPH083126A
PURPOSE: To easily isolate and purify N,O-dimethylhydroxylamine by reaction of hydroxylamine or its salt with methyl chloroformate under specific condition to obtain the intermediate in high yield, and easy methylation of the intermediat...  
JPH083137A
PURPOSE: To provide a method for effectively preventing a fractionated quinoline from coloring with time at a low cost. CONSTITUTION: This method for preventing quinolines from coloring with time is to add 0.05-0.5wt.% organic amines hav...  
JPH07121901B2
Urea derivatives of the formula: wherein R<1> and R<2> are independently a 4-disubstituted aminoaryl group or the like, and R<3> is a carboxyalkyl group or the like, is soluble in water and effective as a color producing reagent for dete...  
JPH07330690A
PURPOSE: To efficiently and easily obtain the derivative useful as an intermediate for medicines, agricultural chemicals, etc., by using a specific dialkylphenylamine derivative as a starting raw material. CONSTITUTION: (A) A 3,5-dialkyl...  
JPH07116114B2  
JPH07116294B2  
JPH07116119B2
Substituted oxime-ethers of the formulae (Ia) (Ib) where R1 and R2 independently of one another are C1-C6-alkyl, n is 2 or 3 and R3 is hydrogen or C1-C6-alkyl.  
JPH07116159B2
The invention discloses a series of difluoroketone mono. di- and tri-peptide derivatives of the formula la, Ib and Ic:-and salts thereof where appropriate, and wherein the radicals are defined hereafter in the specification. The derivati...  
JPH07116121B2
Compounds of formula: wherein: R = Cl, F; R1 = H, Cl, F; R2 and R5, which may be the same as or different from each other, are H, halogen, C1-C4 alkyl; R3 and R4, which may be the same as or different from each other, are: H, halogen, al...  
JPH07108890B2
O-Substituted hydroxylamine hydrochlorides I R-O-NH2 x HCl (I) (R = C1-C4-alkyl, C3-C4-alkenyl, C3-C4-haloalkenyl or benzyl) are prepared by continuous hydrolysis of the corresponding acetone oxime ethers II with hydrogen chloride and wa...  
JPH07108891B2  
JPH07107041B2  
JPH07103082B2  
JPH07103083B2  
JPH0798784B2
Amide substituted benzylhydroxylamine derivatives are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine ...  
JPH0796519B2  
JPH0796526B2
1. An acrylate of the formula see diagramm : EP0226917,P16,F2 where R**1 and R**2 independently of one another are each C1 -C8 -alkyl, X is hydrogen, C1 -C4 -alkyl, halogen, C1 -C4 -alkoxy, haloalkyl, cyano or nitro, W is unsubstituted o...  
JPH0796539B2
Secondary amines are oxidized with hydrogen peroxide in the presence of a catalyst chosen from derivatives of zinc or cadmium. The process is applied to the preparation of di-substituted N,N-hydroxylamines such as N,N-diethylhydroxylamin...  
JPH0796547B2
Described are amino acid compounds of the formula: wherein R is a lower alkyl group, R1 is a hydrogen atom or a protecting group for carboxyl, R2 is a hydrogen atom, a protecting group for amino, an optionally substituted allyl group of ...  
JPH0796507B2
Phenol derivatives of the formula I wherein A and B have the same or different meanings and each represent one of the groups -C 3BOND C-, cis-CH=CH- or trans-CH=CH-, R1 is hydrogen, an optionally substituted alkyl or phenyl group or a cy...  
JPH07267912A
PURPOSE: To obtain the subject compound in high yield while suppressing an amount of a reducing agent used, by isomerizing an (E)-α-aryloxime once and reducing the prepared Z-isomer by using an amine borane complex. CONSTITUTION: An (E)...  
JPH0794421B2
The invention concerns the novel odorants 2,2,4-trimethyl-1-phenyl-3-pentanone oxime, 2,4,4-trimethyl-5-phenyl-3-hexanone oxime and 2,4,4-trimethyl-5-phenyl-3-heptanone oxime, a process for making same, odorant compositions containing sa...  
JPH0794419B2  
JPH0794424B2
The present invention relates to new spergualin-related compounds having an immunopotentiating effect and represented by the general formula [I]: wherein X represents -(CH2)3 SIMILAR 5- or R represents -H or -CH2-OH and R1 and R2 each re...  
JPH0791260B2  
JPH0788343B2  
JPH0788348B2
Compounds having the formula: wherein: R is Cl or F; R1 is H, Cl or F; R2 and R3 are identical or different from each other, and represent H, halogen or C1-C4 alkyl; R4 and R5 are identical or different from each other and represent H, h...  
JPH0788347B2  
JPH0784508B2
Highly functional fluorinated polyisocyanates of the formula:whereinZ1 represents the functional group -O-CO-NH-R-NCO;Z2 represents the difunctional group -O-CO-NH-R-NH-CO-O-;Rf ist a radical derived from fluoropolyethers having a molecu...  
JPH07508045A
PCT No. PCT/EP94/01035 Sec. 371 Date Dec. 12, 1994 Sec. 102(e) Date Dec. 12, 1994 PCT Filed Apr. 2, 1994 PCT Pub. No. WO94/24093 PCT Pub. Date Oct. 27, 1994.Compounds of formula (I): H2N-(CH2)n-A-(CH2)m-O-NH2 and salts thereof are descri...  
JPH07508046A
PCT No. PCT/EP94/01036 Sec. 371 Date Dec. 12, 1994 Sec. 102(e) Date Dec. 12, 1994 PCT Filed Apr. 2, 1994 PCT Pub. No. WO94/24094 PCT Pub. Date Oct. 27, 1994 (I) Compounds of formula (I) in which (a) four of the radicals R1, R2, R3, R4, R...  
JPH07507820A
PCT No. PCT/EP93/01395 Sec. 371 Date Dec. 13, 1994 Sec. 102(e) Date Dec. 13, 1994 PCT Filed Jun. 3, 1993 PCT Pub. No. WO93/25588 PCT Pub. Date Dec. 23, 1993A dispersion or solution of a free radical polymer, polycondensate or polyadduct,...  
JPH0780766B2  

Matches 851 - 900 out of 4,769