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WO/1984/002338A1 |
New derivatives of tricyclo AD5,2,1,02,6 BDdecan having the general formula (A), wherein R1, R2 are a hydrogen rest or optionally one of the substituents of the pair of substituents formed by R1 and R2 is a methyl group and the other one...
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WO/1984/001577A1 |
A process for preparing a cycloaddition compound, which comprises reacting ketene with a carbonyl group-containing compound having formula (I), which contains a highly electron-attractant group in the alpha-position relative to the carbo...
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WO/1984/000954A1 |
A method for the preparation of secondary allylic esters or alcohols by allylic rearrangement of the corresponding isomeric tertiary allylic alcohol. The rearrangement is catalyzed by an acid and is carried out in the presence of a carbo...
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WO/1983/003248A1 |
Carbacycline derivatives having the formula I wherein R1 is the residue CH2OH or$(1,)$ -C-OR2, R2 representing a hydrogen atom, an alkyl, cycloalkyl, aryl, $(1,)$CH2 -C-aryl residue or a heterocyclic residue, or R1 is the residue $(1,)$-...
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WO/1983/003247A1 |
An indane, tetralin or phenyl alcohol is made by a heterogeneous, fast, exothermic Friedel Craft reaction and the reaction mixture is cooled to a temperature at which substantial by-product formation is avoided by continuously utilising ...
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WO/1982/003854A1 |
A process for effecting hydrogenolysis of a carboxylic acid ester comprising contacting a vaporous mixture containing the ester and hydrogen with a catalyst comprising a reduced mixture of copper oxide and zinc oxide at a temperature in ...
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WO/1982/000142A1 |
Novel compounds have a formula (I) (FORMULA) wherein (FORMULA) represents a bicyclo (2, 2, 1)hept-2Z-ene, bicyclo(2, 2, 1)heptane, 7-oxabicyclo(2, 2, 1)hept-2Z-ene, 7-oxabi-cyclo(2, 2, 1)heptane, bicyclo(2, 2, 2)oct-2Z-ene or bicyclo(2, ...
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WO/1980/001163A1 |
Substituted (1,1'-biphenyl)-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates, as well as processes, uses, and intermediates thereto. The substituted (1,1'-biphenyl)-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcy-clo...
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WO/1980/000025A1 |
Compounds of formula I (FORMULA) in which R1 and R2 each is lower alkyl, cyclo (lower) alkyl, lower alkoxy (lower) alkylene, phenyl or phenyl mono- or disubstituted with lower alkyl, lower alkoxy, halo, nitro or trifluoromethyl; or R1 an...
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JP7470080B2 |
The present invention provides (6Z,9Z)-6,9-dodecadien-1-yne of the following formula (1). Further, the present invention provides a process for preparing (6Z,9Z)-6,9-dodecadien-1-yne (1): the process comprising reacting a (3Z,6Z)-10-halo...
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JP2024044906A |
The present invention provides a technology for effectively utilizing waste containing a polymer containing a monomer unit derived from α-halogenoacrylic acid ester of a fluorine-containing alcohol. [Solution] A method for recovering fl...
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JP2024512510A |
Compounds of Formula I, Methods of Their Preparation and Use. Formula I has a core aromatic group with substituents such as: Formula (I) [C1] (In the formula, G1is -(CH2)nC(R1)(R2)OH, -(CH2)n-CHO, -(CH2)nC(O)NR1R2,-(CH2)nCH(R1)NR1R2,-(CH...
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JP2024031085A |
The present invention provides a novel method for producing urea. [Solution] A first step of depolymerizing the carbonate resin by ammonolysis by bringing the carbonate resin into contact with ammonia, and a second step of recovering ure...
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JP2024510173A |
A process for recovering isoprenol essentially free of formaldehyde from a crude isoprenol stream containing isoprenol, water and formaldehyde, the process comprising: A process comprising subjecting to distillation in a boiler separatio...
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JP2024507479A |
The present invention discloses a total synthesis method for vitamin A and its derivatives and their deuterated compounds, in which an alkenyl borate is produced using β-cyclic citral as a starting material, and then the alkenyl borate ...
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JP2024507025A |
The present invention provides compounds of formula (I) (In the formula, A is -CH2OH, -CHO or -CH2Represents OAc, R1is an alkyl group or an alkylidene group, and R2is an alkyl group or an alkylidene group, and the dotted line represents ...
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JP2024504416A |
More specifically, the method for producing a dissimilar metal hydrogenation catalyst is characterized in that when the hydrogenation catalyst is reduced using a specific reducing gas under appropriate reducing conditions, the hydrogenat...
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JP2024504103A |
The present invention provides formula I (In the formula, R1is hydrogen or halogen) A method for the preparation of a chiral triol comprising: Formula IIa (In the formula, R1is hydrogen or halogen, R2is C1~6-alkyl) by asymmetric hydrogen...
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JP7421177B2 |
To provide a new catalyst with which problems associated with a sponge catalyst conventionally used for hydrogenation of organic compounds like nitryl compounds and so on, such as being extremely unstable in atmosphere, having danger of ...
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JP2024009662A |
[Problem] Excited by a DNP device13Provided is an aromatic compound in which the relaxation time of the C nucleus is longer than conventional ones. [Solution] An aromatic compound composed of stable isotopes, in which two adjacent carbon...
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JP7410781B2 |
To provide a dimethyl cyclobutane compound useful as an efficient and industrially feasible synthetic intermediate of a sex pheromone compound having a cyclobutane structure, and a method of producing the same.Provided are compounds of t...
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JP7404795B2 |
To provide a metal catalyst that can be used as a catalyst capable of efficiently and selectively promoting a chemical reaction while using polysaccharide such as an environmentally friendly cellulose as a catalyst carrier.There is provi...
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JP2023178017A |
To provide (4Z,6E)-4,6-undecadienyl=trimethylacetate, which is a synthetic precursor for industrially preparing (5Z,7E)-5,7-dodecadiene compound.A production process includes subjecting [4-(trimethylacetyloxy)butyl]triarylphosphonium=hal...
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JP2023550901A |
The present invention relates to the field of organic synthesis. More specifically, C containing one or more carbonyl or carboxyl functional groups in the presence of a silane and at least one catalyst or precatalyst in the form of a zin...
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JP2023171895A |
To produce a formylalkenyl=alkoxymethyl=ether compound in high purity and high yield by suppressing deprotection of an alkoxymethyl group of a dialkoxyalkenyl=alkoxymethyl=ether compound, and selectively hydrolyzing only acetal.The prese...
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JP2023167909A |
To provide an oxidation catalyst that introduces oxygen into vicinal carbon atoms (vicinal carbon) of unsaturated bonds in unsaturated hydrocarbons with a high yield and selectivity and to provide a method for obtaining a desired diol de...
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JP2023547035A |
The present invention is a hydrogenation process for an ester-containing substrate comprising treating the ester-containing substrate with a base and a transition metal catalyst in the presence of molecular hydrogen, wherein the base is ...
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JP2023547020A |
The present invention is a process for the hydrogenation of glycerol esters comprising treating a composition comprising a glycerol ester with a base and a transition metal catalyst in the presence of molecular hydrogen, wherein the base...
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JP2023545918A |
Vitamin D of formula (I) in patients in need of this therapy to treat metabolic disease, liver disease, obesity, diabetes, cardiovascular disease, or cancer.3Derivatives, pharmaceutical compositions thereof, and pharmaceutical or medical...
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JP2023545003A |
The present invention is directed to the use of compounds of formula (I) for imparting an aromatic impression to compositions. The invention also relates to a method of imparting such an aromatic impression. Compositions of compounds of ...
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JP7369700B2 |
The present invention relates to a transition metal complex having a PNNP4 ligand, which is easy to manufacture and handle and is relatively inexpensively available, and a method for manufacturing the same, as well as a method using this...
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JP7362609B2 |
Described herein are catalytic hydrogenation processes, using Ru complexes with tetradentate ligands of formula L in hydrogenation processes for the reduction of ketone, aldehyde, ester, or lactone into the corresponding alcohol or diol ...
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JP2023147066A |
To provide a polyindane compound that exhibits a low dielectric loss tangent when cured, a curable composition containing the polyindane compound, and a cured product thereof.A polyindene compound is disclosed whose reaction ingredients ...
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JP7358344B2 |
The present invention relates to a method for preparing a compound of formula (I). The present invention also relates to compounds of formula (A) or a compound in the form of a stereoisomer. The present invention further relates to the u...
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JP2023541983A |
The present invention is in the field of fragrance, and includes a general formula derived from camphorenaldehyde with a sandalwood aroma note and improved acid stability.(I)This invention relates to a novel aromatic compound. Furthermor...
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JP7355801B2 |
Methods for preparing isotopically modified 1,4-diene systems from non-isotopically modified 1,4-dienes involve selective oxidation of one or more bis-allylic position(s), or the preparation of isotopically modified 1,4-diene systems via...
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JP7353295B2 |
The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzald...
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JP7350998B2 |
The disclosure discloses a method for an addition reaction of acetylene and a ketone compound. The method includes the following steps: S1, providing a continuous reaction device, wherein the continuous reaction device includes a plurali...
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JP7349969B2 |
The present invention relates to a 6-hydroxy-3-hexenyl alkoxymethyl ether compound of the following general formula (1): HOCH2CH2CH=CHCH2CH2OCH2OCH2R1 (1), R1 representing a hydrogen atom, an n-alkyl group having 1 to 9 carbon atoms, or ...
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JP7348939B2 |
The invention provides a method for synthesizing a fatty olefin derivative. In some embodiments, the method includes: a) contacting an unsaturated olefin with an unsaturated fatty acid ester in the presence of a metathesis catalyst under...
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JP7346793B2 |
The present invention relates to a process of hydrogenating an alkyne selectively to an alkene by hydrogen using a hydrogenation catalyst which is palladium supported on a carrier in the presence of an additive mixture of an organic phos...
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JP2023127144A |
To produce an aromatic compound having an ethynyl group in high yield by a simple and inexpensive coupling reaction using an aromatic compound having an electron-donating substituent.In the coupling reaction between an aromatic halogen c...
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JP7344226B2 |
The present invention relates to new classes of odorous alcohols (odorants) derived from 2,3-dimethylbutene which are useful as fragrance or flavor materials in particular in providing natural piney olfactory notes with a complex profile...
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JP7341464B2 |
To provide a redox photocatalyst applicable to a wide range of reactions.The redox photocatalyst comprises a compound represented by the general formula (I) or (II) in the figure. [In the formula, Ar1, Ar2, Ar3, Ar4, Ar5, Ar6, Ar7 and Ar...
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JP2023538697A |
The present invention relates generally to novel catalyst compositions and processes for producing 1,4-butynediol by catalytic ethynylation of formaldehyde, known as the Reppe reaction. Catalysts of the present invention with lower coppe...
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JP2023123750A |
To provide a synthesis method of 4'-ethynyl 2'-deoxy nucleosides and analogs thereof that eliminates the use of protecting groups on intermediates, improves the stereoselectivity of glycosylation, and reduces the number of process steps ...
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JP2023120206A |
To provide a polycarbonate resin capable of realizing an optical molded article having a high refractive index.The invention provides a compound represented by General Formula (1), and specifically, 9,9-bis(2'-hydroxyethyl)-2,7-dinaphtha...
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JP7332583B2 |
The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents a...
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JP2023116178A |
To provide an alicyclic diol having a bis(hydroxymethyl) group, with high selectivity and in high yield.The present invention provides a method for producing an alicyclic diol having a bis(hydroxymethyl) group represented by the followin...
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JP7330907B2 |
The disclosure relates to downstream processing of fatty alcohol (FALC) and provides a novel purification method that provides FALC at high purity and yield.
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