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| Number | Title | Issue Date |
| 7985870 | Process for the manufacture of substituted 2-cyano cinnamic esters The invention relates to an improved process for the manufacture of substituted 2-cyanocinnamic esters. This novel economical process provides products in high purity and yields. ... | 07/26/2011 |
| 7060859 | Use of a solid hydrotalcite structure incorporating fluorides for basic catalysis of Michael or Knoevenagel reactions The invention concerns the use of a solid basic catalyst comprising a hydrotalcite structure wherein part at least of the compensating anions are fluoride anions F− for producing Knoevenagel of Michael condensation reactions. The invention also concerns... | 06/13/2006 |
| 7045661 | Crystalline forms of venlafaxine hydrochloride Crystalline forms of Venlafaxine hydrochloride were found, referred to hereinafter as polymorphic Forms A, B and D. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and pharmaceutical compositions comprising ... | 05/16/2006 |
| 6906087 | Crystalline forms of venlafaxine hydrochloride Crystalline forms of Venlafaxine hydrochloride were found, referred to hereinafter as polymorphic Forms A, B and D. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and pharmaceutical compositions comprising ... | 06/14/2005 |
| 6620960 | Process for the preparation of substituted phenylacetonitriles Disclosed is a process for the preparation of a compound of the formula (1) wherein R1 is unsubstituted or substituted sing reacting a compound of the formula (2) with a compound of the formula (3) in the presence of an aqueous base ransfer cat... | 09/16/2003 |
| 6504044 | Process for the preparation of 1-[cyano(aryl)methyl] cyclohexanol A process for the preparation of 1-[(cyano) aryl methyl] cyclohexanol of the general formula 1 (1a-d) by reacting cyclohexanone with the carbanions of an aryl acetonitrile of the general formula 3 (3a-d), ##STR1## a) R1=H, R2=H b) R1=OMe R2=H c) R1=OMe R2... | 01/07/2003 |
| 6399776 | Processes and intermediates in the synthesis of 5-(3-exo-bicyclo[2.2. 1]hept-2-yloxy-4-methoxyphenyl)-3,4,5,6-tetrahydropyrimidine-2(1H)-one This invention relates to novel processes for preparing the pharmaceutically active compound 5-(3-[(2S)-exo-bicyclo[2.2. 1]hept-2-yloxy]-4-methoxyphenyl)-3,4,5,6-tetrahydropyrimidin-2(1H)-one and its corresponding 2R enantiomer and for preparing cert... | 06/04/2002 |
| 6359164 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the preparation of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one;... | 03/19/2002 |
| 6310032 | -Oxygen-substituted cyclohexane propionitriles, perfumery uses thereof and processes for preparing same Described are -oxygen-substituted cyclohexane propionitriles having the structure: ##STR1## wherein R20 and R21 are the same or different C1 -C3 lower alkoxy; or wherein R20 is hydrogen and R | 10/30/2001 |
| 6307086 | Method for producing long-chain glycine-N,N-diacetic acid derivatives A process for preparing compounds of the formula IIb ##STR1## where R is C6 -C30 -alkyl or C6 -C30 -alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1 -C4 -alko... | 10/23/2001 |
| 6072073 | Carbonyl arylations and vinylations using transition metal catalysts The invention is directed to a process for preparing an alpha-arylated or vinylated carbonyl-containing compounds, comprising reacting a compound having a carbonyl group with an arylating or vinylating compound in the presence of a base and a transition m... | 06/06/2000 |
| 6057456 | Transition metal-catalyzed process for preparing alpha-arylated carbonyl-containing compounds The present invention is directed to a process for preparing alpha-arylated carbonyl-containing compounds, comprising the steps of reacting a compound having at least one carbonyl group with an arylating compound in the presence of a base and a transition... | 05/02/2000 |
| 6020488 | Small molecule inhibition of RNA/ligand binding Disclosed is a method for the inhibition of binding of a ligand to an RNA, the inhibition being mediated by a small organic molecule that binds to the RNA, thereby inhibiting ligand binding. A preferred class of small organic molecules are compounds exemp... | 02/01/2000 |
| 5856560 | Preparation of a-methoxyiminocarboxylic acid methylamides and intermediates therefore A process and intermediates for preparing -methoxyiminocarboxylic acid methylamides (I) by Pinner reaction of a cyanoketone (II) with an alcohol and subsequent reaction of the resulting ester (IV) with hydroxylamine to give the oxime (V), methylati... | 01/05/1999 |
| 5763639 | Process for producing quarternary glycine nitriles A process for preparing quaternized glycine nitriles of formula I ##STR1## comprising reaction of the corresponding precursor amine, aldehyde, hydrocyanic acid or alkali metal cyanide, and subsequent quaternization with an alkylating agent, wherein t... | 06/09/1998 |
| 5449808 | Method for converting amides to nitriles and nitriles to amides A process which comprises contacting and catalytically reacting under essentially anhydrous conditions in the liquid phase an amide with a nitrile according to the equation: RCONH2 +R1 CN.revreaction.RCN+R1 CONH2 whe... | 09/12/1995 |
| 5106984 | 2-hydrocarbyl-3,6-dichloropyridines and their preparation 2-Hydrocarbyl-3,6-dichloropyridines are prepared from dichloromethyl hydrocarbyl ketones and acrylonitrile in a two-step process involving an addition reaction under basic conditions to form intermediate 1,1-dichloro-3-cyanopropyl hydrocarbyl ketones and ... | 04/21/1992 |
| 5043466 | Preparation of cyclohexanol derivatives and novel thioamide intermediates The preparation of compounds having the formula I ##STR1## where R1 is --CN, --CO--N(CH3)2 or --CS--N(CH3)2 and R2 is hydrogen, methyl or a removable protecting group is carried out by... | 08/27/1991 |
| 4851552 | Process for the production of 13-oxabicyclo(10.3.0)pentadecane and process for the production of intermediates 13-oxabicyclo[10.3.0]pentadecane, a valuable ambergris fragrance, is prepared by reacting cyclododecanone with cyanoacetic acid in the presence of a Knoevenagel catalyst to form cyclododecenylacetonitrile, the nitrile is hydrolyzed to cyclododecenylacetic... | 07/25/1989 |
| 4820858 | Process for the preparation of 2-(hydroxyalkyl)acrylic compounds The invention relates to a process for the preparation of 2-(hydroxyalkyl)acrylic compounds having the formula ##STR1## wherein X represents a --CN group, a --COOR3 group, a --COR4 group or a --CONR4 R5 gro... | 04/11/1989 |
| 4806670 | Preparation of -substituted ଲ-dicarbonyl and ଲ-cyanocarbonyl compounds ଲ-Dicarbonyl and ଲ-cyanocarbonyl compounds ##STR1## where R1 is alkyl of 1-20 carbons, X is --COR2, Y is --COOR3, --COR3 or --CN, and R2 and R3 are each C1 -C | 02/21/1989 |
| 4722808 | Use of cyclododecenylacetonitrile as a fragrance component Cyclododecenylacetonitrile is prepared by reacting cyclododecanone with cyanoacetic acid in the presence of a catalyst. Purified cyclododecenylacetonitrile has a pleasant scent reminiscent of roses and lilies of the valley, containing additionally a musk ... | 02/02/1988 |
| 4684743 | Preparation of alpha-substituted ଲ-dicarbonyl, ଲ-cyano-carbonyl and ଲ-dicyano compounds ଲ-Dicarbonyl, ଲ-cyanocarbonyl and ଲ-dicyano compounds I ##STR1## where R1 is an organic radical, X and Y are COOR2, --CO--R2 or --CN and R2 is an organic radical, are prepared from R1 | 08/04/1987 |
| 4670577 | Novel process A novel process for the preparation of pent-4-enoic acids of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, cyano and alkoxycarbonyl of 2 to 5 carbon atoms and Y is selected from the group consisting of hydrogen, cy... | 06/02/1987 |
| 4652669 | 2-(1-hydroxycarbalkoxymethyl)-acrylonitriles and 2-(1-hydroxycarbalkoxymethyl)-acrylates and their preparation 2-(1-Hydroxycarbalkoxymethyl)-acrylonitriles and 2-(1-hydroxycarbalkoxymethyl)-acrylates are prepared by a process in which an acrylonitrile or an acrylate is reacted with a glyoxylate in an aqueous medium at a pH greater than or equal to 6, in the presen... | 03/24/1987 |
| 4614770 | NADHCN mimics as chiral pseudocyanotransferases A broad class of polymers which mimic the NAD-NADHCN couple is disclosed. These polymeric pseudocyanotransferases may be used to effect asymmetric hydrocyanation of many types of carbonyl, thiocarbonyl, and imino groups in either a batch or continuous pro... | 09/30/1986 |
| 4564479 | Process for the Pd-catalyzed arylation of olefins with aryl halides Compounds of the formula I ##STR1## in which A is C2-12 -alkenyl, C4-8 -cycloalkenyl or a grouping--C(R).dbd.C(R')--Y and Y, R, R', R1, R2, R3 and R3 ' are as defined in patent claim 1... | 01/14/1986 |
| 4551526 | Synthesis of alpha-aminonitriles Described is a process for preparing alpha-aminonitriles having the formula ##STR1## where R1, R2, R3 and R4 are each independently hydrogen, C1 -C20 alkyl, C3 -C12 cy... | 11/05/1985 |
| 4470929 | Condensation of substituted phenylacetonitriles with dicarboxylic anhydrides This invention relates to the stoichiometric condensation of substituted phenylacetonitriles with dibasic carboxylic anhydrides. The resulting cyano-keto-acids are obtained in good yield and can be used to prepare biologically active 2-aryl-1,3-cyclohexan... | 09/11/1984 |
| 4465833 | Process for preparing ethynylated benzoic acid derivatives A novel ethynylation process is disclosed which provides an expanded series of novel ethylnyl-terminated aromatic compounds having base sensitive substituents and which facilitates the economic preparation of prior art ethynyl-substituted aromatic compoun... | 08/14/1984 |
| 4447636 | Synthesis of 11-deoxyprostaglandins Improved procedures and intermediates for synthesizing 11-deoxyprostaglandins wherein trans-2,3-dicarbomethoxycyclopentanone is subjected to a novel alcoholysis with ଲ,ଲ,ଲ-trichloroethanol to substitute a ଲ,ଲ,ଲ-tri... | 05/08/1984 |
| 4347379 | Synthesis of alpha-alkoxycarboxylic acids Numerous alpha-carboxylic acids are prepared in a liquid medium by the reaction of an organic compound having at least one reactive hydroxyl or thiol group, with a monoketone, and a haloform, in the presence of a phase transfer catalyst and an alkali meta... | 08/31/1982 |
| 4338468 | -Prop-1-ynyl-3-phenoxybenzyl alcohols -Prop-1-ynyl-3-phenoxybenzyl alcohols of the formula ##STR1## wherein Y represents hydrogen, halogen, C1 -C4 alkyl, C1 -C3 alkoxy, cyano or dimethylamino, a process for their manufacture and their us... | 07/06/1982 |
| 4331568 | 3,7-Dimethyl-3-hydroxy-6-octenenitrile and process for its preparation This invention relates to a new compound, 3,7 -dimethyl-3-hydroxy-6-octenenitrile, useful for the preparation of compounds of the class of the octenenitriles. The method for the preparation thereof is furthermore disclosed, according to which 2-methy... | 05/25/1982 |
| 4322561 | Method for the preparation of carbonyl compounds For preparing carbonyl compounds containing certain functional groups, a carbonyl compound is reacted with an unsaturated compound in the presence of a trivalent-manganese initiator and an amine. There is a positive coaction between the trivalent-Mn catal... | 03/30/1982 |
| 4287206 | Halogen derivatives of 8-hydroxycarboxylic acids; the processes for their preparation and medicaments in which they are present Halogen derivatives of 8-hydroxycarboxylic acids, which correspond to the formula ##STR1## (open form, in a basic medium) or to the formula ##STR2## (cyclized form, in an acid medium) in which formulae: X1 and X2 are h... | 09/01/1981 |
| 4256659 | Method of preparing 2-aryl-1,3-cyclohexanedione compounds 2-Aryl-1,3-cyclohexanedione compounds and their alkali metal and ammonium salts exhibit outstanding herbicidal, miticidal and mite ovicidal activity.... | 03/17/1981 |
| 4245098 | Process for producing 2,3,5-trichloropyridine, 2,4,4-trichloro-4-formyl-butyronitrile as a novel compound and a process for producing it A novel process for producing 2,3,5-trichloropyridine is described. The process comprises the addition reaction of trichloroacetaldehyde with acrylonitrile in the presence of a catalyst, and the subsequent cyclization of the intermediately formed 2,4... | 01/13/1981 |
| 4239694 | Bis-dicyanoalkyl arene compounds Novel bis-dicyanoalkyl arene compounds are described of the formula ##STR1## wherein Ar, R1 and R2 are named substituents, Y is hydrogen or ##STR2## where R3 is an alkyl radical having 1 to 10 carbon atoms, and both ... | 12/16/1980 |
| 4125721 | Process for the production of 2,4-diamino-5-(3',4',5'-trimethoxybenzyl)-pyrimidine A process for the production of 2,4-diamino-5-(3',4',5'-trimethoxybenzyl)-pyrimidine by condensing trimethoxy benzaldehyde with a substituted propionitrile compound and reacting the condensation product obtained with guanidine, wherein a ଲ-akyl... | 11/14/1978 |
