公开(公告)号：US06245950B1

公开(公告)日：2001-06-12

申请号：US09538640

申请日：2000-03-30

申请人： Mannepalli Lakshmi Kantam ,  Katuri Jeevaratnam ,  Boyapati Manoranjan Choudary ,  Chinta Reddy Venkat Reddy ,  Kondapuram Vijaya Raghavan ,  Lanka Venkata Sivaji ,  Thumma Someshwar

发明人： Mannepalli Lakshmi Kantam ,  Katuri Jeevaratnam ,  Boyapati Manoranjan Choudary ,  Chinta Reddy Venkat Reddy ,  Kondapuram Vijaya Raghavan ,  Lanka Venkata Sivaji ,  Thumma Someshwar

IPC分类号： C07C3916

CPC分类号： C07C37/62 ,  B01J23/007 ,  B01J23/30 ,  B01J27/236 ,  C07C39/367

摘要： The invention relates to a process for the preparation of high quality tetrabromobisphenol-A by reacting bisphenol-A with bromine and hydrogen peroxide as an oxidant in the presence of a heterogeneous catalyst in a biphase system consisting of water and water immiscible organic solvents.

摘要翻译： 本发明涉及通过双相-A与溴和过氧化氢作为氧化剂在多相催化剂存在下在由水和水不混溶的有机溶剂组成的双相体系中反应来制备高质量的四溴双酚A的方法。

公开(公告)号：US06617454B1

公开(公告)日：2003-09-09

申请号：US10113208

申请日：2002-03-28

申请人： Boyapati Manoranjan Choudary ,  Chinta Reddy Venkat Reddy ,  Billakanti Veda Prakash ,  Balagam Bharathi ,  Mannepalli Lakshmi Kantam

发明人： Boyapati Manoranjan Choudary ,  Chinta Reddy Venkat Reddy ,  Billakanti Veda Prakash ,  Balagam Bharathi ,  Mannepalli Lakshmi Kantam

IPC分类号： C07D41300

CPC分类号： C07D295/24 ,  C07C291/04 ,  C07D207/46 ,  C07D211/94 ,  C07D217/02 ,  Y02P20/584

摘要： The present invention provides a process for the preparation of amine oxide by reacting a tertiary or a secondary amine with hydrogen peroxide as an oxidant in the presence of a recyclable heterogeneous catalyst comprising a layered double hydroxide exchanged with an anion in the presence of an additive selected from the group consisting of benzonitrile, propionitrile, isobutyronitrile, benzamide and isobutyraride.

摘要翻译： 本发明提供了一种通过使叔胺或仲胺与过氧化氢作为氧化剂在存在可再循环的非均相催化剂的条件下反应来制备氧化胺的方法，所述可再循环的非均相催化剂包括在选择的添加剂存在下与阴离子交换的层状双氢氧化物 由苯甲腈，丙腈，异丁腈，苯甲酰胺和异丁酰肼组成。

公开(公告)号：US06812186B2

公开(公告)日：2004-11-02

申请号：US10106807

申请日：2002-03-27

申请人： Boyapati Manoranjan Choudary ,  Aduri Ravindra ,  Mannepalli Lakshmi Kantam ,  Chinta Reddy Venkat Reddy ,  Balagam Bharathi

发明人： Boyapati Manoranjan Choudary ,  Aduri Ravindra ,  Mannepalli Lakshmi Kantam ,  Chinta Reddy Venkat Reddy ,  Balagam Bharathi

IPC分类号： B01J3118

CPC分类号： B01J37/30 ,  B01J23/007

摘要： The present invention relates to design and preparation of LDH-diisopropylamide through simple exchange process for the first time and its use in catalytic amounts for preparing aldols/&agr;,&bgr;-unsaturated nitriles/&agr;,&bgr;-unsaturated esters/transesterified products/&bgr;-nitroalkanols/Michael adducts and epoxide, resulting in higher yields.

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：US06316674B1

公开(公告)日：2001-11-13

申请号：US09538641

申请日：2000-03-30

申请人： Mannepalli Lakshmi Kantam ,  Mutyala Sateesh ,  Boyapati Manoranjan Choudary ,  Billakanti Veda Prakash ,  Kondapuram Vijaya Raghavan

发明人： Mannepalli Lakshmi Kantam ,  Mutyala Sateesh ,  Boyapati Manoranjan Choudary ,  Billakanti Veda Prakash ,  Kondapuram Vijaya Raghavan

IPC分类号： C07C4500

CPC分类号： C07C45/46 ,  B01J29/7007 ,  Y10S977/775 ,  Y10S977/835 ,  Y10S977/896 ,  Y10S977/915 ,  C07C49/84

摘要： An improved process for the preparation of acyl aromatic ethers useful as important intermediates for drugs and pharmaceuticals by reacting an aromatic ether with an acylating agent selected from a C2-C8 acid anhydrides, employing nano- and microcrystalline zeolite beta as catalyst is disclosed.

摘要翻译： 公开了一种用于制备酰基芳族醚的改进方法，其用作药物和药物的重要中间体，其通过使用纳米和微晶β沸石作为催化剂使芳族醚与选自C 2 -C 8酸酐的酰化剂反应。

公开(公告)号：US06387033B1

公开(公告)日：2002-05-14

申请号：US09721510

申请日：2000-11-22

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

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

IPC分类号： C07C3118

CPC分类号： C01G55/002 ,  B01J23/466 ,  C01F7/005 ,  C01P2002/22 ,  C01P2006/80 ,  C07B2200/07 ,  C07B2200/09 ,  C07C29/03 ,  Y02P20/584 ,  C07C33/26

摘要： LDH-osmate of the formula [MII(1−x)MIIIx(OH)2][OsO42−]x/2.zH2O wherein MII is a divalent cation selected from the group consisting of Mg2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+ and Ca2+ and MIII is a trivalent ion selected from the group consisting of Al3+, Cr3+, Mn3+, Fe3+ and Co3+, and x is the mole fraction having integral value ranging from 0.2 to 0.33, and z is the number of water molecules and ranges from 1 to 4, useful as, a catalyst, and a process for the preparation thereof and use thereof to manufacture vicinal diols.

摘要翻译： 式[MII（1-x）MIIIx（OH）2] [OsO42-] x / 2.zH2O的LDH-锇酸盐其中MII是选自Mg2 ​​+，Mn2 +，Fe2 +，Co2 +，Ni2 +， Cu2 +，Zn2 +和Ca2 +，MIII是选自Al3 +，Cr3 +，Mn3 +，Fe3 +和Co3 +的三价离子，x是积分值为0.2〜0.33的摩尔分数，z为水分子数 范围为1〜4，可用作催化剂，其制备方法及其制备邻二醇的用途。

公开(公告)号：US06320082B1

公开(公告)日：2001-11-20

申请号：US09538639

申请日：2000-03-30

申请人： Mannepalli Lakshmi Kantam ,  Mutyala Sateesh ,  Boyapati Manoranjan Choudary ,  Kalluri Venkata Sri Ranganath ,  Kondapuram Vijaya Raghavan

发明人： Mannepalli Lakshmi Kantam ,  Mutyala Sateesh ,  Boyapati Manoranjan Choudary ,  Kalluri Venkata Sri Ranganath ,  Kondapuram Vijaya Raghavan

IPC分类号： C07C4500

CPC分类号： C07C45/46 ,  B01J29/7007 ,  C07C49/84

摘要： An improved process for the preparation of acyl naphthyl ethers useful as important intermediates for drugs, pharmaceuticals and polyesters by reacting a naphthyl ether with a C2-C5 acid anhydride as an acylating agent employing a zeolite beta catalyst is disclosed.

摘要翻译： 公开了一种改进的制备酰基萘基醚的方法，其用作药物，药物和聚酯的重要中间体，通过使萘基醚与C2-C5酸酐作为使用β沸石催化剂的酰化剂进行反应。

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：US06215024B1

公开(公告)日：2001-04-10

申请号：US09411971

申请日：1999-10-04

申请人： Boyapati Manoranjan Choudary ,  Veldurthy Bhaskar ,  Mannepalli Lakshmi Kantam ,  Kottapalli Koteswara Rao ,  Kondapuram Vijaya Raghavan

发明人： Boyapati Manoranjan Choudary ,  Veldurthy Bhaskar ,  Mannepalli Lakshmi Kantam ,  Kottapalli Koteswara Rao ,  Kondapuram Vijaya Raghavan

IPC分类号： C07C23102

CPC分类号： C07C231/02

摘要： The present invention provides a novel single step process for the production of amides from amines comprising reaction of amines with an acylating agent comprising of a carboxylic acid in a molar ratio of 1:3 to 1:10 in the presence of reusable natural montmorillonite/metal ion-exchanged clay catalysts, in a suitable solvent medium at a temperature in the range of 30-160° C. for a period of 0.02 to 6 hrs, and recovering the corresponding amides by a conventional simple work-up procedure.

摘要翻译： 本发明提供了一种用于从胺生产酰胺的新型单步方法，其包括在可再利用的天然蒙脱石/金属存在下，胺与含有摩尔比为1:3至1:10的羧酸的酰化剂的反应 离子交换粘土催化剂，在合适的溶剂介质中，温度范围为30-160℃，时间为0.02至6小时，并通过常规简单的后处理方法回收相应的酰胺。

公开(公告)号：US06703532B2

公开(公告)日：2004-03-09

申请号：US10032380

申请日：2001-12-21

申请人： Boyapati Manoranjan Choudary ,  Mannepalli Lakshmi Kantam ,  Nadakuditi Sailendra Kumar ,  Kompella Vishweshwara Ram Prasad ,  Kondapuram Vijaya Raghavan

发明人： Boyapati Manoranjan Choudary ,  Mannepalli Lakshmi Kantam ,  Nadakuditi Sailendra Kumar ,  Kompella Vishweshwara Ram Prasad ,  Kondapuram Vijaya Raghavan

IPC分类号： C07C20500

CPC分类号： C07C201/08 ,  C07C205/06

摘要： This invention relates to a process for the nitration of xylene isomers by using zeolite-beta as a catalyst. This invention particularly relates to a process for the nitration of xylenes using solid acid catalyst, thus totally eliminating the disposal of spent acid and salts. Herein we describe the nitration of disubstituted benzenes, all the isomers of xylene, by employing nitric acid and beta zeolite catalyst dispensing the use of acetic anhydride. The reactions were performed at temperatures ranging from room temperature to reflux temperature of the solvent

摘要翻译： 本发明涉及通过使用沸石-β作为催化剂硝化二甲苯异构体的方法。 本发明特别涉及使用固体酸催化剂硝化二甲苯的方法，从而完全消除废酸和盐的处理。 在这里，我们描述了二取代苯的硝化，二甲苯的所有异构体，通过使用硝酸和β沸石催化剂分配使用乙酸酐。 反应在溶剂的室温至回流温度的温度下进行