摘要:
A method for producing a compound having a deuterated aromatic ring or heterocyclic ring according to the invention includes heating a compound having an aromatic ring or heterocyclic ring in the presence of heavy water, a transition metal and a metal which generates deuterium. As the metal which generates deuterium, at least one metal selected from the group consisting of aluminum, magnesium, zinc, iron, lead and tin is preferred. As the transition metal, at least one metal selected from the group consisting of platinum, palladium, ruthenium and rhodium is preferred. The heating is preferably carried out by microwave irradiation.
摘要:
A method for producing MMA-d8 which includes a step of exchanging D in hydroxyl group of methanol-d4 represented by the formula: CD3OD with H to prepare the methanol-d3 represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3 with sulfuric acid salt of methacrylic acid amide represented by the formula CD2═(CD3)CO(NH2·H2SO4) to prepare MMA-d8 represented by the formula: CD2═(CD3)COOCD3.
摘要翻译:一种制备MMA-d 8 N的方法,该方法包括在由下式表示的甲醇-d 4的羟基中交换D的步骤:< 3< 3> > OD以制备由式CD 3 OH表示的甲醇-d 3并同时回收含氘化合物,并且使甲醇-d 3反应, 由式CD 2 - (CD 3 N)CO(NH 2)2表示的甲基丙烯酸酰胺的硫酸盐与(3-N) > H 2 SO 4),以制备由下式表示的MMA-d 8:(Ⅳ)(((((((::::::::::::::::::::::::::::::: CD 3)COOCD 3 3。
摘要:
A method for producing MMA-d8 which includes a step of exchanging D in hydroxyl group of methanol-d4 represented by the formula: CD3OD with H to prepare the methanol-d3 represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3 with sulfuric acid salt of methacrylic acid amide represented by the formula CD2=(CD3)CO(NH2.H2SO4) to prepare MMA-d8 represented by the formula: CD2=(CD3)COOCD3.
摘要:
A low yield ratio and high-strength hot rolled steel sheet having a composition containing, on a mass percent basis, 0.03% to 0.10% C, 0.10% to 0.50% Si, 1.4% to 2.2% Mn, 0.005 % to 0.10% Al, 0.02% to 0.10% Nb, 0.001% to 0.030% Ti, 0.05% to 0.50% Mo, 0.05% to 0.50% Cr, and 0.01% to 0.50% Ni, in which Moeq preferably satisfies the range of 1.4% to 2.2%; and a microstructure including a main phase that contains bainitic ferrite having an average grain size of 10 μm or less and a secondary phase that contains massive martensite having an aspect ratio of less than 5.0 in an area ratio of 1.4% to 15%.