公开(公告)号：US06407293B1

公开(公告)日：2002-06-18

申请号：US09962122

申请日：2001-09-26

申请人： Akira Amano ,  Teruyoshi Akiyama ,  Takashi Miura ,  Toshimitsu Hagiwara

发明人： Akira Amano ,  Teruyoshi Akiyama ,  Takashi Miura ,  Toshimitsu Hagiwara

IPC分类号： C07C3512

CPC分类号： C07C43/196 ,  C07C41/03

摘要： A process for producing highly pure 3-1-menthoxypropane-1,2-diol safely and efficiently, and an intermediate to be used in the process. 3-1-menthoxypropane-1,2-diol represented by the chemical formula (IV) is produced by adding 1-menthol to a 1,2-epoxy-3-halogenopropane represented by the following general formula (I) (wherein X represents a halogen atom) in an organic solvent in the presence of a Lewis acid to produce a novel 1-halogeno-3-1-menthoxypropan-2-ol represented by the following general formula (II), then, epoxidating it with a base in the presence of a phase transfer catalyst to produce a 1,2-epoxy-3-1-menthoxypropane represented by the chemical formula (III), and further hydrolyzing it.

摘要翻译： 安全有效地生产高纯度3-1-薄荷氧基丙二醇-1,2-二醇的方法，以及该方法中使用的中间体。 由化学式（IV）表示的3-1-薄荷氧基丙烷-1,2-二醇通过将1-薄荷醇加入到由下列通式（I）表示的1,2-环氧-3-氯代丙烷中（其中X表示 卤素原子）在有机溶剂中在路易斯酸存在下反应，得到由以下通式（II）表示的新型1-卤代-3-三氟甲氧基丙-2-醇，然后用碱进行环氧化 存在相转移催化剂以制备由化学式（III）表示的1,2-环氧-3-丁氧基丙烷，并进一步水解。

公开(公告)号：US06177596B1

公开(公告)日：2001-01-23

申请号：US09211500

申请日：1998-12-14

申请人： Ganapati Dadasaheb Yadav ,  Jayesh Janardhan Nair ,  Vikas Narendra

发明人： Ganapati Dadasaheb Yadav ,  Jayesh Janardhan Nair ,  Vikas Narendra

IPC分类号： C07C3512

CPC分类号： C07C201/08 ,  B01J21/18 ,  B01J27/053 ,  B01J37/084 ,  C07C205/06 ,  C07C205/12

摘要： An active highly acidic microporous solid catalyst comprising sulphated metal oxide and at least one of carbon molecular sieve and/or heteropoly acid and having pore volume in the range of 0.1-0.2 m3/g and pore size distribution in the range of 25-40 Å for use in acid catalized organic reactions which occur in the microporous range of the catalysts such as nitration of aromatic compounds, cyclization of terpenoids and more particularly relates to the preparation of modified sulphated zirconia catalysts. The invention also covers the process for producing the abovesaid solid catalyst and its use in producing isopulegol-rich in 1-isopulegol isomer from d-citronellal and in process for mononitration of aromatic compounds C6H4R1R2 wherein R1=—CH3, —C2H5, —Cl, —Br or —I and R2—H or —CH3.

摘要翻译： 一种活性高酸性微孔固体催化剂，其包含硫酸化金属氧化物和至少一种碳分子筛和/或杂多酸，并且孔体积在0.1-0.2m 3 / g范围内，孔径分布在25-40范围内 用于在催化剂的微孔范围内发生的酸性催化的有机反应，例如芳族化合物的硝化，萜类化合物的环化，更特别地涉及改性的硫酸化氧化锆催化剂的制备。 本发明还涉及生产上述固体催化剂的方法及其用于从D-香茅醛生产富含异倍隆异构体的异胡萝卜醇和在芳香族化合物C6H4R1R2单硝化过程中的用途，其中R 1 = -CH 3，-C 2 H 5，-Cl， -Br或-I和R2-H或-CH3。