公开(公告)号：US06703531B2

公开(公告)日：2004-03-09

申请号：US10366611

申请日：2003-02-14

申请人： Boyapati M. Choudary ,  Naidu S. Chowdari ,  Mannepalli L. Kantam ,  Kondapuram V. Raghavan

发明人： Boyapati M. Choudary ,  Naidu S. Chowdari ,  Mannepalli L. Kantam ,  Kondapuram V. Raghavan

IPC分类号： C07C3326

CPC分类号： B01J31/1658 ,  B01J21/08 ,  B01J23/466 ,  B01J31/08 ,  B01J31/1608 ,  B01J31/165 ,  B01J31/1805 ,  B01J2231/32 ,  B01J2531/825 ,  C07B2200/07 ,  C07C29/48 ,  C07C31/20 ,  C07C33/24

摘要： The present invention discloses a process for the preparation of a novel heterogeneous osmate catalyst of the general formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules by reacting potassium osmate with supported quaternary ammonium species in an aqueous solvent.

摘要翻译： 本发明公开了一种制备通式（S-NR 3）2 O·4HH 2 O的新型异构锇酸酯催化剂的方法，其中S为支持物，R为烷基，n为锇酸钾反应的水分子数 在水性溶剂中具有负载的季铵物质。

公开(公告)号：US06472570B1

公开(公告)日：2002-10-29

申请号：US09980504

申请日：2001-10-19

申请人： Matthias Beller ,  Christian Döbler ,  Gerald Mehltretter ,  Uta Sundermeier

发明人： Matthias Beller ,  Christian Döbler ,  Gerald Mehltretter ,  Uta Sundermeier

IPC分类号： C07C3326

CPC分类号： C07C29/50 ,  C07C33/26

摘要： This invention relates to process for asymmetric dihydroxylation of olefins using osmium catalysts to obtain monofunctional, bifunctional, and/or polyfunctional chiral 1,2-diols of the formula (I) R1R2C(OH)—C(OH)R3R4  (I) where R1 to R4 are defined herein, by reacting an olefin of the formula (II) R1R2C═CR3R4  (II) where R1 to R4 are defined as for formula (I), with molecular oxygen in the presence of an osmium compound and a chiral amine ligand in water or a water-containing solvent mixture at a pH of from 8.5 to 13.

摘要翻译： 本发明涉及使用锇催化剂来获得烯烃不对称二羟基化的方法，以获得式（I）的单官能，双功能和/或多官能的手性1,2-二醇，其中R 1至R 4在本文中定义，通过使式 （II）其中R 1至R 4如式（I）所定义，分子氧在锇化合物和手性胺配体存在下在水或含水溶剂混合物中的pH为8.5至13。

公开(公告)号：US06815566B2

公开(公告)日：2004-11-09

申请号：US10460468

申请日：2003-06-13

申请人： Boyapati Manoranjan Choudary ,  Naidu Sreenivasa Chowdari ,  Mannepalli Lakshmi Kantam ,  Kondapuram Vijaya Raghavan

发明人： Boyapati Manoranjan Choudary ,  Naidu Sreenivasa Chowdari ,  Mannepalli Lakshmi Kantam ,  Kondapuram Vijaya Raghavan

IPC分类号： C07C3326

CPC分类号： B01J31/1658 ,  B01J21/08 ,  B01J23/466 ,  B01J31/08 ,  B01J31/1608 ,  B01J31/165 ,  B01J31/1805 ,  B01J2231/32 ,  B01J2531/825 ,  C07B2200/07 ,  C07C29/48 ,  C07C33/26 ,  C07C31/20 ,  C07C33/24

摘要： The present invention provides a supported osmate useful as a reusable catalyst in the preparation of vicinal diols. The present invention also relates to a process for the preparation of supported osmates of the formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules and use thereof in the preparation of vicinal diols by asymmetric dihydroxylation (AD) of olefins in presence of cinchona alkaloid compounds.

摘要翻译： 本发明提供了在邻位二醇的制备中可用作可重复使用的催化剂的负载型渗透剂。 本发明还涉及一种制备式（S-NR 3）2 O·4HH 2的负载型锇酸盐的方法，其中S是载体，R是烷基，n是水分子的数目及其在制备中的用途 的邻位二醇通过在金雀绿素生物碱化合物存在下的烯烃的不对称二羟基化（AD）。

公开(公告)号：US06607677B1

公开(公告)日：2003-08-19

申请号：US09719333

申请日：2000-12-11

申请人： Richard Buchecker ,  Zoubair Mohammed Cherkaoui ,  Klaus Schmitt

发明人： Richard Buchecker ,  Zoubair Mohammed Cherkaoui ,  Klaus Schmitt

IPC分类号： C07C3326

CPC分类号： C07C69/94 ,  C07C31/24 ,  C07C31/27 ,  C07C33/26 ,  C07C69/54 ,  C07C69/92 ,  C07D309/12 ,  C09K19/586 ,  C09K19/588

摘要： Optically active butane-1,2,3,4-tetraol derivatives of formula (I). The compounds may be used as doping agents for liquid crystals for a wide range of applications, such as solid state cholesteric filters for projection displays, circular polarizers, and optical filters.

摘要翻译： 式（I）的光学活性丁烷-1,2,3,4-四醇衍生物。 该化合物可用作液晶的掺杂剂用于广泛的应用，例如用于投影显示器的固态胆甾型滤光器，圆偏振器和光学滤光器。

公开(公告)号：US06646168B2

公开(公告)日：2003-11-11

申请号：US10096071

申请日：2002-03-13

申请人： Boyapati Manoranjan Choudary ,  Naidu Sreenivasa Chowdari ,  Mannepalli Lakshmi Kantam ,  Kondapuram Vijaya Raghavan

发明人： Boyapati Manoranjan Choudary ,  Naidu Sreenivasa Chowdari ,  Mannepalli Lakshmi Kantam ,  Kondapuram Vijaya Raghavan

IPC分类号： C07C3326

CPC分类号： B01J31/1658 ,  B01J21/08 ,  B01J23/466 ,  B01J31/08 ,  B01J31/1608 ,  B01J31/165 ,  B01J31/1805 ,  B01J2231/32 ,  B01J2531/825 ,  C07B2200/07 ,  C07C29/48 ,  C07C33/26 ,  C07C31/20 ,  C07C33/24

摘要： The present invention provides a supported osmate useful as a reusable catalyst in the preparation of vicinal diols. The present invention also relates to a process for the preparation of supported osmates of the formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules and use thereof in the preparation of vicinal diols by asymmetric dihydroxylation (AD) of olefins in presence of cinchona alkaloid compounds.

公开(公告)号：US06552234B1

公开(公告)日：2003-04-22

申请号：US09983231

申请日：2001-10-23

申请人： Boyapati M. Choudary ,  Naidu S. Chowdari ,  Mannepalli L. Kantam ,  Kondapuram V. Raghavan

发明人： Boyapati M. Choudary ,  Naidu S. Chowdari ,  Mannepalli L. Kantam ,  Kondapuram V. Raghavan

IPC分类号： C07C3326

CPC分类号： B01J31/1658 ,  B01J21/08 ,  B01J23/466 ,  B01J31/08 ,  B01J31/1608 ,  B01J31/165 ,  B01J31/1805 ,  B01J2231/32 ,  B01J2531/825 ,  C07B2200/07 ,  C07C29/48 ,  C07C31/20 ,  C07C33/24

摘要： The present invention discloses a process for the preparation of a novel heterogeneous osmate catalyst of the general formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules by reacting potassium osmate with supported quaternary ammonium species in an aqueous solvent.