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    • 1. 发明授权
    • Process for preparing unsaturated diesters
    • 制备不饱和二酯的方法
    • US4131743A
    • 1978-12-26
    • US702935
    • 1976-07-06
    • Yoshinori YoshidaTutomu KobayashiHironobu ShinoharaIzumi Hanari
    • Yoshinori YoshidaTutomu KobayashiHironobu ShinoharaIzumi Hanari
    • B01J23/44C07C69/00C07C67/05
    • B01J23/44C07C67/055
    • Unsaturated diesters are produced by a process which comprises reacting, in a flowing gaseous phase, a gaseous mixture comprising a conjugated diene, a carboxylic acid and molecular oxygen in the presence of (A) a catalyst comprising palladium, vanadium, antimony and at least one alkali metal carboxylate, or in the presence of (B) a catalyst comprising palladium, vandium, antimony, at least one alkali metal carboxylate and at least one alkali metal halide. The catalyst (A) maintains a high activity and a high selectivity for a long time. The catalyst (B), in which further the alkali metal halide is added, shows a higher activity and a higher selectivity for a longer time. And its activity and selectivity are stable and durable at high temperatures such as 160.degree. - 200.degree. C. Furthermore, the addition of the alkali metal halide suppresses combustion reaction of dienes such as butadiene remarkably. Additionally, the catalysts (A) and (B), especially (B) can be easily reactivated when they lose activity.
    • 在(A)包含钯,钒,锑和至少一种催化剂的催化剂的存在下,在流动的气相中使包含共轭二烯,羧酸和分子氧的气体混合物反应来制备不饱和二酯 碱金属羧酸盐或在(B)包含钯,钪,锑,至少一种碱金属羧酸盐和至少一种碱金属卤化物的催化剂存在下进行。 催化剂(A)长时间保持高活性和高选择性。 其中加入碱金属卤化物的催化剂(B)在较长时间内显示出较高的活性和更高的选择性。 其活性和选择性在160〜200℃的高温下是稳定和耐用的。此外,加入碱金属卤化物可显着抑制丁二烯如燃烧反应。 此外,催化剂(A)和(B),特别是(B)可以在它们失去活性时容易地再活化。
    • 4. 发明授权
    • Process for the preparation of diacetoxybutene
    • 制备二乙酰氧基丁烯的方法
    • US4228301A
    • 1980-10-14
    • US950441
    • 1978-10-11
    • Yoshinori YoshidaHironobu Shinohara
    • Yoshinori YoshidaHironobu Shinohara
    • C07C51/44C07C51/47C07C51/48C07C67/05
    • C07C51/47C07C51/44C07C51/48C07C67/055C07C67/48C07C67/54Y02P20/582
    • In a process for preparing diacetoxybutene by subjecting butadiene, acetic acid and oxygen to reaction, the discharge gas from the reaction system or purification system, containing butadiene and/or acetic acid, is treated by contacting with diacetoxybutene and/or diacetoxybutane (absorbent) to allow butadiene and/or acetic acid to be absorbed by said absorbent. A part of the diacetoxybutene separated in a distillation tower from the reaction product solution containing diacetoxybutene produced by said three-component reaction can be used as said absorbent. In this case, butadiene and/or acetic acid can be recovered from said discharge gas by supplying the absorption solution into said distillation tower. Also usable as said absorbent is diacetoxybutane obtained by hydrogenation of diacetoxybutene. In this case, it is possible to recover butadiene and/or acetic acid by supplying the obtained absorption solution into said distillation tower and further transferring the obtained mixture of diacetoxybutene and diacetoxybutane to the hydrogenation step without separation. In said process for preparing diacetoxybutene, the substantial portion of the discharge gas from the reaction system may be circulated back to the reaction system for reuse, and the remaining discharge gas may be supplied into an absorption tower.
    • 在通过使丁二烯,乙酸和氧进行反应来制备二乙酰氧基丁烯的方法中,来自含有丁二烯和/或乙酸的反应体系或纯化系统的排放气体通过与二乙酰氧基丁烯和/或二乙酰氧基丁烷(吸收剂)接触来处理 允许丁二烯和/或乙酸被所述吸收剂吸收。 在蒸馏塔中分离的二乙酰氧基丁烯的一部分与通过所述三组分反应生产的含有二乙酰氧基丁烯的反应产物溶液可用作所述吸收剂。 在这种情况下,通过将吸收溶液供应到所述蒸馏塔中,可以从所述放电气体中回收丁二烯和/或乙酸。 也可用作所述吸收剂是通过二乙酰氧基丁烯的氢化获得的二乙酰氧基丁烷。 在这种情况下,通过将获得的吸收溶液供给到所述蒸馏塔中,可以回收丁二烯和/或乙酸,并进一步将得到的二乙酰氧基丁烯和二乙酰氧基丁烷的混合物转移到氢化步骤中而不分离。 在制备二乙酰氧基丁烯的所述方法中,来自反应体系的放电气体的大部分可以循环回到反应体系中以供再利用,并且剩余的放电气体可以被供应到吸收塔中。
    • 6. 发明授权
    • Process for producing conjugated diene monoesters
    • 共轭二烯单酯的制备方法
    • US4321409A
    • 1982-03-23
    • US103477
    • 1979-12-14
    • Yoshinori YoshidaHironobu Shinohara
    • Yoshinori YoshidaHironobu Shinohara
    • C07C69/025B01J31/00C07B61/00C07C67/055
    • C07C67/055
    • A process for producing a conjugated diene monoester by reacting a gaseous mixture comprising a conjugated diene, a carboxylic acid and oxygen as reactive components, in which the fraction of said conjugated diene is preferably 12-60 mole % and the fraction of oxygen is preferably 5-30 mole %, in the gas phase in the presence of a catalyst, characterized by carrying out the reaction in the presence of a catalyst which comprises, as active components, (a) palladium, (b) at least one member selected from the group consisting of magnesium, calcium, barium, cerium, lanthanum, tungsten, copper, zinc, cadmium, boron, thallium, molybdenum, tin, lead, phosphorous, arsenic and selenium and (c) at least one alkali metal carboxylate, or a catalyst which comprises, as active components, these three components (a), (b) and (c) together with (d) at least one alkali metal halide.
    • 通过使包含共轭二烯,羧酸和氧气的气体混合物作为反应性组分使共轭二烯单酯生产的方法,其中所述共轭二烯的分数优选为12-60摩尔%,氧分数优选为5 -30摩尔%,在催化剂存在下在气相中,其特征在于在催化剂存在下进行反应,所述催化剂包含作为活性组分的(a)钯,(b)至少一种选自 由镁,钙,钡,铈,镧,钨,铜,锌,镉,硼,铊,钼,锡,铅,磷,砷和硒组成的组和(c)至少一种碱金属羧酸盐或催化剂 其包括作为活性组分的这三种组分(a),(b)和(c)以及(d)至少一种碱金属卤化物。
    • 7. 发明申请
    • METHOD OF EFFICIENTLY ESTABLISHING INDUCED PLURIPOTENT STEM CELLS
    • 有效建立诱导型脑干细胞的方法
    • US20130183759A1
    • 2013-07-18
    • US13822906
    • 2011-09-14
    • Shinya YamanakaYoshinori YoshidaHidaka Yokota
    • Shinya YamanakaYoshinori YoshidaHidaka Yokota
    • C12N15/01
    • C12N15/00C12N5/0696C12N15/01C12N2501/998
    • The present invention provides a method of improving the efficiency of establishment of induced pluripotent stem (iPS) cells by inhibiting p38 function in the step of somatic cell nuclear reprogramming. The p38 function can be inhibited by bringing an inhibitor selected from the group consisting of (1) a chemical inhibitor of p38 (2) a dominant negative mutant of p38 or a nucleic acid that encodes the same, (3) a nucleic acid selected from the group consisting of siRNAs and shRNAs targeted to p38 and DNAs that encode the same and (4) an inhibitor of p38 pathway into contact with a somatic cell and the like. The present invention also provides an agent for improving the efficiency of establishment of induced pluripotent stem cells, which contains an inhibitor of p38 function, particularly an inhibitor selected from the group consisting of (1) a chemical inhibitor of p38 (2) a dominant negative mutant of p38 or a nucleic acid that encodes the same, (3) a nucleic acid selected from the group consisting of siRNAs and shRNAs targeted to p38 and DNAs that encode the same and (4) an inhibitor of p38 pathway. Moreover, the present invention provides a production method of iPS cells, which includes bringing a nuclear reprogramming substance and an inhibitor of p38 function into contact with a somatic cell.
    • 本发明提供了通过在体细胞核重编程步骤中抑制p38功能来提高诱导多能干细胞(iPS)细胞建立效率的方法。 可以通过使选自下述的抑制剂来抑制p38的功能:(1)p38的化学抑制剂(2)p38的显性失活突变体或其编码的核酸,(3)选自以下的核酸: 由针对p38的siRNA和shRNA组成的组和编码该p38的DNA和(4)p38途径的抑制剂与体细胞等接触的组。 本发明还提供了用于提高诱导多能干细胞的建立效率的试剂,其含有p38功能的抑制剂,特别是选自(1)p38(2)的显性阴性的化学抑制剂 p38的突变体或编码其的核酸,(3)选自靶向p38的siRNA和shRNA的核酸和编码其的DNA,以及(4)p38途径的抑制剂。 此外,本发明提供了iPS细胞的制备方法,其包括使核重编程物质和p38功能抑制剂与体细胞接触。