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| Number | Title | Issue Date |
| 8030521 | Methods of producing 1,3,5-triamino-2,4,6-trinitrobenzene Methods of producing TATB are disclosed. The method comprises providing acid wet TNPG and distilling water from the acid wet TNPG. The TNPG is reacted with an alkoxylating agent to form a solution of 1,3,5-trialkoxy-2,4,6-trinitrobenzene solution, which is reacted w... | 10/04/2011 |
| 7910776 | Methods of producing 1,3,5-triamino-2,4,6-trinitrobenzene Methods of producing 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), from alkoxy derivatives of phloroglucinol, such as 5-methoxyresorcinol, 3,5-dimethoxyphenol, or 1,3,5-trimethoxybenzene, are disclosed. The alkoxy derivatives may be exposed to and directly nitrated w... | 03/22/2011 |
| 7763753 | Methods for the production of 1,3,5-triamino-2,4,6-trinitrobenzene Methods of producing 1,3,5-triamino-2,4,6-trinitrobenzene are disclosed. One method comprises dissolving a 1,3,5-trialkoxy-2,4,6-trinitrobenzene compound in an organic solvent to form a 1,3,5-trialkoxy-2,4,6-trinitrobenzene compound solution. The 1,3,5-trialkoxy-2,4... | 07/27/2010 |
| 7355077 | Process for preparing tolterodine A process for preparing tolterodine with high purity. ... | 04/08/2008 |
| 7227039 | RS 1-{4-[2-(allyloxy)-ethyl]phenoxy}-3-isopropylamino propan-2-ol, process for preparation thereof and process for preparation of RS betaxolol The present invention relates to RS 1-{4-[2-(allyloxy)-ethyl]phenoxy}-3-isopropylamino propan-2-ol of the formula (1), process for preparation thereof by selective allylation of p-hydroxy phenyl ethanol and use thereof in a preparation of RS betaxolol of formula (2)... | 06/05/2007 |
| 7223879 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. ... | 05/29/2007 |
| 7115780 | Propanolaminomethyltetralines, their preparation and pharmaceutical composition comprising same The invention concerns compounds of formula (I), wherein A is a group of formula (a) or (b), wherein: R represents a hydrogen or halogen atom, a —S(O)z(C1–C4)Alk wherein z is 0, 1 or 2, a —NHSO2(C1–C | 10/03/2006 |
| 7102023 | Protecting groups useful in the synthesis of polysaccharides, natural products, and combinatorial libraries One aspect of the present invention relates to optionally substituted halogenated benzyl halides and the like. These compounds are useful as halogenated benzyl ether-based protecting groups for a variety of functional groups. Another aspect of the present invention ... | 09/05/2006 |
| 7026498 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming react... | 04/11/2006 |
| 7019172 | Process for preparation of S-(-)-betaxolol and salts thereof The present invention relates to an improved process for preparation of S-(−)-betaxolol salts. More particularly the present invention relates to the preparation of hydrochloride salt of S-(−)-betaxolol of formula (1) ... | 03/28/2006 |
| 6946560 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming react... | 09/20/2005 |
| 6723880 | Preparation of secondary amines from primary amines A process for producing secondary amines of the formula R1R2N—A—NH—A—NR1R2, where R1 and R2 are linear or branched C1-20-alkyl radicals, optionally substituted with from 1 to 5 phen... | 04/20/2004 |
| 6613944 | Process to produce 3-carbon amino alcohol salts The present invention includes a number of novel intermediates such as the (S)-secondary alcohol of formula (VIIIA) and processes for production of pharmacologically useful oxazolidinones.... | 09/02/2003 |
| 6563003 | Process to produce amino alcohol salts The present invention includes a number of novel intermediates such as the (S)-secondary alcohol of formula (VIIIA) X2 --CH2 --C*H(OH)--CH2 --NH--CO--RN (VIIIA) and processes for production of pharmacologically useful ox... | 05/13/2003 |
| 6403834 | Method for preparing tris(ether-amine) The invention concerns a method for preparing tris(ether-amines) of formula (I): N[A--O--(B--O)n --R]3 wherein R, A, B and n are as defined in Claim 1, comprising the reaction, in liquid phase, of an alkylene-glycol monoether of form... | 06/11/2002 |
| 6222073 | Catalytic synthesis of N-alkylated anilines from olefins and anilines Process for the preparation of an N-arylethylaniline of the formula (I) Ar--N(R1)2-n (CHR2 CHR3 Ar')n (I) by reacting an aromatic olefin of the formula (II) Ar'CR3 =CHR2 (II) with an aniline ... | 04/24/2001 |
| 6162944 | Process for production of N-cyclopropylanilines and intermediates therefor Process for production of, from inexpensive raw materials of high commercial availability, N-cyclopropylanilines which are an important intermediate in producing a quinolonecarboxylic acid having a cyclopropyl group at the 1-position, a fluorine atom at t... | 12/19/2000 |
| 6127537 | Method for preparing 3-amino-1,2-propandiol derivatives A method for the preparation of 3-amino-1,2-propandiol derivatives of the formula (I) ##STR1## by reacting a compound of the formula (II) ##STR2## with RNH2, wherein R and R1 have the same meaning as given in the descr... | 10/03/2000 |
| 6100430 | Alicyclic polyamines and process for the preparation thereof An alicyclic polyamine of the formula (1) ##STR1## wherein Y1 represents a saturated aliphatic hydrocarbon group and R1 through R4 are the same or different and each represents hydrogen atom, an alkyl group, a cycloal... | 08/08/2000 |
| 6090984 | -phenoxy-alkanols, their methods of preparation and their applications New -phenoxy-alkanols represented by the general formula ##STR1## in which R1 and R2, which may be identical or different, represent a hydrogen atom or the CH3 radical, and their stereoisomers of R,S conformati... | 07/18/2000 |
| 6060625 | Process for the production of etheramine alkoxylates A process for the alkoxylation of a polyetheramine to form an etheramine alkoxylate. In the process, a polyetheramine is reacted with an alkylene oxide in the presence of an alcohol to form the etheramine alkoxylate. The alcohol serves as a catalyst to al... | 05/09/2000 |
| 6046359 | Catalysts for the amination of alkylene oxides, alcohols, aldehydes and ketones A catalyst comprises, based on the total weight of the catalyst, 0.1-6% by weight of cobalt, nickel or a mixture thereof, 0.001-25% by weight of ruthenium, 0-10% by weight of copper and 0-5% by weight of promoters on a porous metal oxide carrier. It preferably comprises... | 04/04/2000 |
| 6028226 | Process for 3,4-disubstituted dinitroanilines Preparation process for 3,4-disubstituted dinitroanilines of formula ##STR1## in which, R1 and R2, which are identical to or different from one another, represent a hydrogen atom, a C1 to C6 saturated, line... | 02/22/2000 |
| 5986137 | Allylation reagent and process for allylating a nucleophile A process and reagent for allylating a nucleophile preferably of formula (V). (R)n Ar--Y--H (V) The nucleophile is reacted with a reagent containing an allyl derivative and a catalyst in an aqueous phase conta... | 11/16/1999 |
| 5981800 | Preparation process for 4-substituted dinitroanilines Preparation process for 4-substituted dinitroanilines of formula ##STR1## in which R1 is chosen from the group containing the tert-butyl, sulphonamido, trifluoromethyl, methyl-sulphonyl and isopropyl radicals, R2 and R3, w... | 11/09/1999 |
| 5925789 | Asymmetric synthesis of benzoxazinones The present invention provides novel methods for the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1- benzoxazin-2-one of formula (VI-i) ##STR1## which is useful as a human immunodeficiency virus (HIV) re... | 07/20/1999 |
| 5902900 | Optically active 1-phenyl-2-substituted propane derivatives and methods of producing the same An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) ##STR1## wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R | 05/11/1999 |
| 5895824 | Preparation of polyether polyols containing aromatics In a process for preparing polyether polyols containing aromatics by molecular addition of alkylene oxides to H-functional initiators at from 70° C. to 135° C. and pressures of from 0.1 MPa to 1.0 MPa, the alkoxylation is carried out using at least one ... | 04/20/1999 |
| 5840981 | Process for producing N-methyl-2(3,4 dimethoxyphenyl)-ethylamine A process for preparing N-methyl-2-(3,4-dimethoxyphenyl)-ethylamine comprises hydrogenating 3,4-dimethoxyphenylacetonitrile with a methylamine of the general formula I ##STR1## where R1 is hydrogen, benzyl or tert-butyl, and hydrogen in th... | 11/24/1998 |
| 5817877 | Metal-catalyzed amination of organic sulfonates to organic amines A process of preparing an organic amine having at least one unsaturated group, such as an arylamine, involving contacting an unsaturated organic sulfonate, such as an aryl sulfonate, with a reactant amine, such as an alkyl or aryl amine, in the presence o... | 10/06/1998 |
| 5786405 | Amine-initiated polyether polyols and a process for their production Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst. After the desired degree of epoxidation has been achieved, a hydroxy-carboxylic acid is added to the epoxidized mixture in an ... | 07/28/1998 |
| 5777168 | Process for producing N-alkyl-dinitroalkylanilines This invention relates to a process for producing N-alkyl-dinitroalkylaniline and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol followed by a one or two stage dinitration of the resulting alkylanisole which... | 07/07/1998 |
| 5763667 | Ether-linked amine-terminated polyethers and a process for their production Ether-linked amine-terminated polyethers are produced by reacting (1) a polyether polyol in which substantially all of the hydroxyl groups have been replaced with good leaving groups with (2) an aminoalcohol and/or aminothiol and (3) a deprotonating agent... | 06/09/1998 |
| 5731463 | Selective alkylation of an alcohol substituted phenol compound The present invention relates to a process for the selective alkylation of intermediates of betaxolol.... | 03/24/1998 |
| 5723670 | Liquid amines Amines which are solid at ambient temperature and pressure are liquified by reacting those amines with a derivatizing agent represented by the formula XY in which X represents a halide or sulfonate group and Y represents an alkyl group, a cycloalkyl group... | 03/03/1998 |
| 5693864 | Process for the production of secondary amine terminated polyethers Disclosed herein is a process for preparing an amine terminated polyether comprising reacting a polyether containing a leaving group with a primary amine or ammonia at a temperature of about 70 to 250 degrees Centigrade.... | 12/02/1997 |
| 5689006 | Process for producing n-alkyl-dinitroalkylanilines This invention relates to a process for producing N-alkyl-dinitroalkylaniline and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol followed by nitration of the resulting alkylanisole which is followed by react... | 11/18/1997 |
| 5663441 | Production of mono-N-alkyl-dinitroalkylanilines and N-alkyl-dinitroaniline derivatives This invention relates to a process for producing mono- and di- N-alkyl-dinitroalkylaniline or dinitroaniline derivative and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol or phenol derivative followed by nitrati... | 09/02/1997 |
| 5616811 | Etheramine alkoxylates Etheramine alkoxylates are described which have the formula: ##STR1## where R1 is a straight or branched alkyl, aryl or alkylaryl group of 6 to 22 carbon atoms; R3 are independently hydrogen or C1 to C3 alk... | 04/01/1997 |
| 5602283 | Multi-stage process for preparing N-alkyl-3,4-dialkyl-2,6-dinitroanilines A multistage process of preparing N-alkyl-3,4-dialkyl-2,6-dinitroanilines starts from 3,4-dialkyl phenol and goes through the stages of 3,4-dialkyl-2,6-dinitrophenol and 3,4-dialkyl-2,6-ditro alkoxybenzene, wherein the latter are new compounds.... | 02/11/1997 |
