Study on the dimethoxyacetic acid methyl ester synthesis 二甲氧基乙酸甲酯的合成研究
Study of methyl - naphthylacetate catalyzed by bst - solid superacid 催化合成萘乙酸甲酯的研究
Study of methyl - naphthylacetate catalyzed by bst - solid superacid 型固体超强酸催化合成萘乙酸甲酯的研究
The industrial application of catalytic distillation in methyl acetate hydrolysis 乙酸甲酯催化精馏水解新工艺的工业应用
The catalytic synthesis of methyl phenylacetate by so2 - 4 tio2 la3 rare - earth solid superacid 稀土固体超强酸催化合成苯乙酸甲酯
Workplace air - determination of methyl acetate - direct injection gas chromatographic method 车间空气中乙酸甲酯的直接进样气相色谱测定方法
Manufacturer of amine - based specialty chemicals in texas . products include asphalt and bitumen additives , fatty amine surfactants and derivatives , and oilfield chemicals . also offers custom reaction and blending services -生产磷酸三乙酯,氯化钯,氧化亚锡,二氯乙酸甲酯,一氯乙酸甲酯等产品。
A new process of extraction distillation with salt was developed for the triple azeotropic system of methyl acetate - ethanol - water and the selective method of the solvent and salt were studied 本文针对乙酸甲酯?乙醇?水三元共沸体系,提出了加盐萃取精馏的工艺过程,并对盐的选择和萃取剂的选择方法进行了研究。
The barnidipine hydrochloride were prepared via cyclocondensation from m - nitrobenzaldehyde , methyl acetoacetate and anmmonium bicarbonate , hydrolysis , esterification with opticaliy ( s ) - n - benzyl - 3 - py - rrolidinol , recrystallisation and salification 摘要研究了以碳酸氢铵,间硝基苯甲醛和乙酰乙酸甲酯为原料,经缩合、部分水解,再与( s ) - n -苄基3 -羟基吡咯烷经酯化、分步重结晶、成盐得到盐酸巴尼地平的工艺路线。
The preparation method of methyl 1 - naphthylacetate catalyzed by sulphuric acid , hydrochloric acid , chlorosulfonic acid , p - toluene sulfonic acid , amino sulfonic acid , strongly acidic cationic exchange resin , ferric chloride hexahydrate , stannic chloride pentahydrate , aluminium chloride , ferric sulfate , aluminium sulfate , titanium sulfate , sodium bisulfate monohydrate , solid super acid , heterpoly acid , support heterpoly acid , composite titanate and p - toluene sulfo - chloride etc . catalyst were reviewed 摘要评述了硫酸、盐酸、氯磺酸、对甲苯磺酸、氨基磺酸、强酸性阳离子交换树脂、六水三氯化铁、五水四氯化锡、三氯化铝、硫酸铁、硫酸铝、硫酸钛、一水硫酸氢钠、固体超强酸、杂多酸、固载杂多酸、复合钛酸酯和对甲苯磺酰氯等催化剂催化合成1 -萘乙酸甲酯的方法。