摘要:
A compound shown by the following formula: wherein each of R1a, R2a, R3a and R4a represents a substituent selected from a non-reactive atom, a non-reactive group, a hydroxyl group and an amino group, and at least two members selected from R1a, R2a, R3a and R4a are a hydroxyl group, a carboxyl group or an amino group; is subjected to an esterification reaction or an amidation reaction with a polymerizable unsaturated compound (e.g., an alcohol, a carboxylic acid, an amine) in the presence of a catalyst comprising an element selected from the Group 3 elements, such as a samarium compound, to obtain a polymerizable adamantane derivative having at least one polymerizable unsaturated group in high yield.
摘要:
The invented process produces a corresponding 5-hydroxy-2-adamantanone derivative by allowing a 2-adamantanone derivative of the following formula (1): wherein each of Ra, Rb, and Rc is, identical to or different from one another, a hydrogen atom, a halogen atom, an alkyl group, a hydroxyl group which may be protected by a protective group, a hydroxymethyl group which may be protected by a protective group, an amino group which may be protected by a protective group, a carboxyl group which may be protected by a protective group, or a nitro group, and of carbon atoms constituting an adamantane skeleton, the other carbon atoms than carbon atoms at bridgehead positions and at a bonding position of an oxo group may have a substituent, to react with oxygen in the presence of N-hydroxyphthalimide or another imide compound, a vanadium compound, and a manganese compound.
摘要:
A system computes the interaction energy between a plurality of fragments in a calculation object substance according to the fragment molecular orbital method. The energy of each fragment, the two-body interaction energy of each dimer including two fragments, and the three-body interaction energy of each trimer including three fragments are calculated. The two-body interaction energy of each dimer is corrected by adding, to the two-body interaction energy of the dimer, the contribution of the dimer in the three-body interaction energy of the trimer that includes the dimer.
摘要:
When an original point position of a transport roller is detected using an original point detecting sensor and a downstream end in the transport direction of an elongated sheet is positioned on a more downstream side in the transport direction than a cutting position, the sheet is cut by a cutter. Thereafter, a correction chart is generated by driving the transport roller and a recording unit.
摘要:
A process produces an amide or lactam by subjecting an oxime compound to rearrangement in a solvent in the presence of: at least one catalyst selected from the group consisting of an aromatic compound (A1) containing a leaving group bound to a carbon atom constituting the aromatic ring, the aromatic ring including, as a constitutive atom thereof, a heteroatom or including, as a constitutive atom thereof, a carbon atom bound to an electron-withdrawing group, and a compound (A2) containing a structure of Formula (1): -G-LA (1) wherein G represents P, N, S, B or Si atom; and LA represents a leaving group, wherein G is bound to one or more atoms or groups in addition to LA; and a co-catalyst including a halogen-containing organic acid, to give the corresponding amide or lactam, wherein, when the aromatic compound (A1) alone is used as the catalyst, the solvent is at least one solvent selected typically from hydrocarbon solvents. The production process can yield amides or lactams simply in high yields without causing large amounts of by-products such as ammonium sulfate.
摘要:
Is disclosed a cycloaliphatic polyepoxy compound represented by following Formula (1): wherein Y represents a linkage group or a single bond; and HAs each represent hydrogen atom at the junction between cyclohexane ring and oxirane ring, and the cyclohexane rings may each further have one or more substituents in addition to the groups shown in the formula. The cycloaliphatic polyepoxy compound contains stereoisomers in such proportions as to have a ratio A/B of 1.8 or more, wherein “A” and “B” are integrated intensities of signals of protons at the junction between cyclohexane ring and oxirane ring as determined by 1H-NMR spectroscopy of the compound, in which “A” represents the integrated intensity of a signal observed at a lower magnetic field, and “B” represents the integrated intensity of a signal observed at a higher magnetic field.
摘要:
The present invention provides a method for producing polyorganosiloxane particles through the step of hydrolyzing and condensing a silicon compound having a non-hydrolyzable group and a hydrolyzable alkoxyl group bonded to its silicon atom in the presence of a catalyst and thereby forming seed particles of polyorganosiloxane particles to obtain a seed-particles-containing solution and the step of adding a particle-diameter-growing aqueous solution containing the same silicon compound or a hydrolyzate thereof to the above seed-particles-containing solution to grow the above seed particles, the method comprising the step of obtaining the seed-particles-containing solution, in which particles are measured for a particle diameter continuously or at intervals of a constant time period and terminating the reaction at a time when an intended particle diameter is reached.
摘要:
Disclosed is an oxetane-containing vinyl ether compound including one or more aromatic or non-aromatic carbocycles and/or two or more vinyl ether structures, such as a compound of Formula: wherein Ring Z1 is non-aromatic carbocycle; Ra is vinyl group of Formula: wherein each of R1, R2, and R3 is hydrogen or C1-C4 alkyl; Wa is single bond or organic group having a valence of (m+1); X1 is, for example, hydrocarbon; “m” and “q” are each 1 or 2; and “p” is 0 to 5. Also disclosed is an alicyclic epoxy-containing vinyl ether compound of Formula: wherein Ring Z2 is non-aromatic carbocycle; Rb is vinyl group of Formula: wherein R4, R5 and R6 are each hydrogen or C1-C4 alkyl; Wb is single bond or organic group having a valence of (r+1); Rc and Rd are hydrogen or alkyl; and “r” and “s” are 1 or 2.
摘要翻译:公开了包含一种或多种芳族或非芳族碳环和/或两个或多个乙烯基醚结构的含氧杂环丁烷的乙烯基醚化合物,例如下式的化合物:其中环Z 1是非 - 芳香碳环 R a是乙烯基,其中R 1,R 2和R 3各自为氢 或C 1 -C 4烷基; 化合物是单键或化合价(m + 1)的有机基团。 X 1是例如烃; “m”和“q”分别为1或2; 并且“p”为0至5.还公开了下式的脂环族环氧基乙烯基醚化合物:其中Z 2是非芳族碳环; R b是下式的乙烯基:其中R 4,R 5和R 6各自是氢或C 1 -C 1-4烷基; W是单键或化合价(r + 1)的有机基团。 R d和R d是氢或烷基; “r”和“s”为1或2。
摘要:
A catalyst includes a cyclic imide compound having an N-substituted cyclic imide skeleton represented by following Formula (I): wherein X is an oxygen atom or a hydroxyl group, and having a solubility parameter of less than or equal to 26 [(MPa)1/2] as determined by Fedors method. The catalyst may further comprise a metallic compound. By allowing (A) a compound capable of forming a radical to react with (B) a radical scavenging compound in the presence of the catalyst, an addition or substitution reaction product between the compound (A) and the compound (B) or a derivative thereof can be obtained.
摘要:
A process of the present invention produces a hydroxylactone by subjecting an unsaturated carboxylic acid having a double bond not conjugated to a carboxyl group or an ester thereof to (i) a reaction with hydrogen peroxide in the presence of a metallic compound containing a metallic element selected from W, Mo, V and Mn or (ii) a reaction with a peroxide containing the metallic element to thereby yield a corresponding hydroxylactone having a hydroxyl group combined with one of carbon atoms constituting the double bond and being cyclized at the other carbon atom position. The metallic compound may be one selected from oxides, oxoacids and salts thereof. The unsaturated carboxylic acid includes, for example, β,γ-unsaturated carboxylic acids, γ,δ-unsaturated carboxylic acids, and δ,ε-unsaturated carboxylic acids. The process can produce hydroxylactones in high yields at low cost.