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| Number | Title | Issue Date |
| 7402708 | Method for producing aqueous ortho-phthalaldehyde solutions A method for producing aqueous ortho-phthalaldehyde solutions which comprises introducing an acetal of the o-phthalaldehyde into water and subsequently setting a pH | 07/22/2008 |
| 7390647 | Method for producing chiral α-hydroxycarboxylic crystalline acids The invention relates to a method for producing chiral α-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into α-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence of Rhodococcus erythro... | 06/24/2008 |
| 7371866 | Preparation of aromatic and heteroaromatic carboxylic acids by catalytic ozonolysis A process for catalytically oxidizing alkylaromatic compounds of the formula (I) Ar—CH2—R where Ar is an optionally substituted, aromatic or heteroaromatic 5-membered or 6-membered ring or a ring system having up to 20 carbon atoms... | 05/13/2008 |
| 7202075 | Isolated protein having hydroxynitrile lyase activity New genes containing a DNA sequence coding for hydroxynitrile lyase, which genes can be prepared via a primer combination based on the DNA sequence of the 5′-region of the mdl genes from the Prunus serotina and from Prunus amygdalus and/or a primer 2... | 04/10/2007 |
| 6858743 | Method for the production of 2-coumarone and substituted 2-coumarones The invention relates to a method for the production of 2-coumarone or substituted 2-coumarones, whereby cyclohexanone or substituted cyclohexanone is reacted with a carboxyl-containing acylating agent a) to give methyl 2-(2-oxo-cyclohexyl)-2-hydroxyacetate or subst... | 02/22/2005 |
| 6818423 | Process for the preparation of chiral α-hydroxycarboxylic acids A process for the preparation of chiral α-hydroxycarboxylic acids: in which R1 is optionally halogen substituted C1-C2-alkyl and R2 is optionally halogen substituted C2-C3-a... | 11/16/2004 |
| 6812348 | Method for producing 2-chloro-5-chloromethyl-1,3-thiazol The invention relates to a method for producing 2-chloro-5-chloromethyl-1,3-thiazol from compounds of formula (I), wherein X means Cl, —OR, —SR or NR2, R being H or a suitable protective group; Y means H or Cl and Z means Cl or O, the compounds of for... | 11/02/2004 |
| 6545186 | Process for the purification of ketones obtained from the corresponding terpenes by ozonolysis and reduction Improved, safe process for the purification of ketones obtained by ozonolysis and subsequent reduction of the corresponding terpenes, in which, after the ozonolysis and reduction of acyclic mono-, bi- or tricyclic terpenes with ozonizable double bonds, co... | 04/08/2003 |
| 6518455 | Process for preparing substituted aromatic and heteroaromatic aldehydes and carboxylic acids A process for preparing substituted aromatic and heteroaromatic aldehydes or carboxylic acids of the formula ##STR1## in which R1 and R2 are H, C1 -C4 alkyl, C1 -C4 alkoxy, OH, NO2 | 02/11/2003 |
| 6395903 | Process for the preparation of 2,3-pyridinedicarboxylic acids Process for the preparation of pure 2,3-pyridinedicarboxylic acids of the formula I ##STR1## which are substituted in position 4 and/or 5 and/or 6 by R1, where R1 is hydrogen, C1 -C4 alkyl, C1 -C... | 05/28/2002 |
| 6387280 | Process for reducing the amount of nitrification-inhibiting sulfur compounds A process for reducing the amount of nitrification-inhibiting sulfur compounds in reaction solutions obtained by the sulfur-compound-catalyzed conversion of ,ଲ-unsaturated carboxylic acids into the corresponding trans or cis isomer, in which ... | 05/14/2002 |
| 6355842 | Process for the oxidation of substrates containing methyl, methylene or methine groups Process for the oxidation of substrates containing methyl, methylene or methine groups by cooxidation with an aldehyde as cosubstrate in the presence of a catalyst system consisting of an imide compound and a metal cocatalyst.... | 03/12/2002 |
| 6355822 | Process for selective reduction Process for the stereoselective reduction of chiral - or ଲ-keto esters which have a chiral center in the γ position in an inert solvent at temperatures from -80 to +50° C. using a reductant obtained by reaction of NaBH4 and (D)- ... | 03/12/2002 |
| 6346623 | Method for producing substituted pyridine-carboxylic acids An improved process for the preparation of substituted pyridinecarboxylic acids (II), useful as herbicide intermediates, by ozonolysis of quinolines (I). ##STR1##... | 02/12/2002 |
| 6340645 | Intumescent laminates with high heat transfer resistance Intumescent laminate with high heat transfer resistance composed of a glass-fiber web or glass-fiber fabric each of which has been coated with a four-component intumescent composition comprising a) a phosphate compound, b) a melamine compound, c) a polyol... | 01/22/2002 |
| 6337196 | Enzymatic processes for preparing (S)-cyanohydrins An enantioselective process for the preparation of the (S)-enantiomer of an optically active cyanohydrin by reaction of an aldehyde or of a ketone with a cyanide group donor, in which the aldehyde or the ketone is reacted with a cyanide group donor in an ... | 01/08/2002 |
| 6319697 | (S)-hydroxynitrile lyases with improved substrate acceptance and their use (S)-Hydroxynitrile lyases which have an improved substrate acceptance and which are derived from the Hevea brasiliensis and Manihot esculenta (S)-hydroxynitrile lyases, wherein one or more bulky amino acid residues within the hydrophobic channel leading t... | 11/20/2001 |
| 6287829 | Process for the selective enzymatic hydroxylation of aldehydes and ketones A process for the selective enzymatic hydroxylation of aldehydes and ketones using chiral anchor-protective groups.... | 09/11/2001 |
| 6258572 | Process for preparing L-aspartic acid An improved process for preparing L-aspartic acid by enzyme-catalyzed reaction of fumaric acid with ammonia, in which process L-aspartic acid is precipitated out by nitric acid and the resultant mother liquor is subjected to a nanofiltration.... | 07/10/2001 |
| 6225095 | Enzymatic process for the preparation of (S)-cyanohydrins Process for the preparation of the (S)-enantiomers of optically active cyanohydrins, in which a reaction mixture of a) an aldehyde or ketone dissolved in an organic, water-immiscible or slightly miscible diluent, b) an aqueous (S)-hydroxynitrile lyase solution... | 05/01/2001 |
| 6222063 | Process for transesterifying -Ketocarboxylic esters Process for transesterifying -ketocarboxylic esters in an anhydrous alcohol as reaction medium in the presence of tin catalysts, titanium catalysts, zirconium catalysts or lithium catalysts or of acetylacetonates as catalysts.... | 04/24/2001 |
