Basf Se Corporation

Basf Aktiengesellschaft

Andreas Keller

Rocco Paciello

Martin Haubner

Mathias Schelwies

Joaquim Henrique Teles

Wolfgang Siegel

Ralf Pelzer

Hansgeorg Ernst

Stefan Rüdenauer

Oliver Bey

Gunnar Heydrich

Georg Seeber

Klaus Ebel

Andrei-Nicolae Parvulescu

Gabriele Gralla

Gerd-Dieter Tebben

Daniel Schneider

Ulrich Müller

Florian Garlichs

Johann-Peter Melder

Ulrich Mueller

Klaus Hahn

Jochen Steiner

Bernhard Brunner

Ekkehard Schwab

Peter Zehner

Klaus Ditrich

Volker Warzelhan

Michael Puhl

Christian Walsdorff

Nicolas Vautravers

Frank Funke

Manfred Julius

Walter Dobler

Arne Ptock

Kai-Uwe Baldenius

Wolfgang Krause

Stephan Maurer

Hans Hasse

Klemens Mathauer

Matthias Frauenkron

Gerhard Bauer

Otto Watzenberger

Miriam Bru Roig

Marco Bosch

Chung-Ji Tschang

Björn Langlotz

Bernhard Schmied

Melanie Weingarten

Volker Hickmann

Ingo Bellin

Klaus Henrich

Günter Wegner

Martin Kamasz

Gerald Wildburg

Rupert Wagner

Wolfram Husemann

Gerd Tebben

Olaf Kriha

Mario Brands

Stephanie Renz

Roland Minges

Sumana Roy

Martine Dehn

Sven Lawrenz

Stefan Bauer

Bjoern Langlotz

Michaela Fenyn

Rudolf Schuch

Reinhard B&auml;cher

Albert Werner

Michael Riethues

J&uuml;rgen Schmidt-Th&uuml;mmes

Stefan Ruedenauer

Lutz End

Hubertus Kroner

Heiko Wolf

Walter Kastenhuber

Stephan Zuend

Joseph John Zakzeski

Benjamin Nehls

Pepa Dimitrova

Fatemeh Ahmadnian

Guenter Wegner

Karsten Bartling

Robert Engel

Dieter Feuerstein

Michael Joedecke

Kirsten Braunsmann

Sumana Chaturvedula

Werner Schackert

J&uuml;rgen Hartmann

Tobias Voitl

Jesper Feldthusen Jensen

Ulrich Gräβle

Andreas Jörg Ufer

Vera Luense

Heiko Hallmann

Maximilian Dyga

Matthias Schult

The present invention relates to a method for isomerizing a 3-(Z)-unsaturated carboxylic acid of the formula 1-Z or a salt thereof, wherein Ris C-C-alkyl, C-C-alkenyl having 1, 2, 3 or more than 3 C—C double bonds, unsubstituted or substituted C-C-cycloalkyl, or unsubstituted or substituted aryl; Ris hydrogen or has one of the definitions specified for R; with the proviso that Rhas a higher priority than Rin accordance with IUPAC; to give a 3-(E)-unsaturated carboxylic acid of the formula I-E or a salt thereof, wherein the isomerization of the compound of the formula 1-Z is effected in the presence of an anhydride of an organic acid and a base or in the presence of a ketene of formula CRRC(0), wherein Rand Rare as defined in the claims and in the specification and a base. In particular, the present invention relates to a method for preparing compositions with increased content of (3E,7E)-homofarnesylic acid starting from compositions comprising (3Z,7E)- and (3E,7E)-homofarnesylic acid.

Method for the isomerization of a 3-(Z)-unsaturated carboxylic acid to the 3-(E)-isomer

The presently claimed invention relates to a process for the recovery of 3-methyl-3-buten-1-ol from a stream obtained in the production of 3-methyl-3-buten-1-ol from 2-methylprop-1-ene and formaldehyde, by treating the stream with an amine catalyst.

Process to recover high quality 3-methyl-but-3-en-1-ol

A process for performing a continuous gas/liquid biphasic high-pressure reaction, wherein a gas and a liquid are introduced into a backmixed zone of a reactor and in the backmixed zone the gas is dispersed in the liquid by stirring, injection of gas and/or a liquid jet, a reaction mixture consecutively traverses the backmixed zone and a zone of limited backmixing, and a liquid reaction product is withdrawn at a reaction product outlet of the zone of limited backmixing, wherein the reactor comprises: an interior formed by a cylindrical vertically oriented elongate shell, a bottom and a cap, wherein the interior is divided by means of internals into the backmixed zone, the zone of limited backmixing and a cavity, a first cylindrical internal element which in the interior extends in the longitudinal direction of the reactor and which delimits the zone of limited backmixing from the backmixed zone, backmixing-preventing second internal elements in the form of random packings, structured packings or liquid-permeable trays arranged in the zone of limited backmixing and a third internal element which in the interior extends in the longitudinal direction of the reactor and is open at the bottom, wherein the third internal element forms the cavity in which gas bubbles collect and do not escape upwards, thus preventing the volume of the cavity from being occupied by liquid and reducing the reaction volume. The reaction volume of the reactor used in the process can be reversibly reduced in simple fashion. The invention further relates to a process for adapting the reaction volume of a reactor suitable for performing a gas/liquid biphasic high-pressure reaction having an outlet for a liquid reaction product in which an internal element is arranged so as to form a cavity open at the bottom in which gas bubbles collect and do not escape upwards, thus preventing the volume of the cavity from being occupied by liquid and reducing the reaction volume.

Method for carrying out a gas/fluid two-phase high-pressure reaction

The presently claimed invention relates to a process for the recovery of 3-methyl-3-buten- -ol from a stream comprising (Z)-3-methylpent-2-ene-1,5-diol, (E)-3-methylpent-2-ene-,5-diol and 3-methylenepentane-1,5-diol by treating the stream with isobutene and water.

Process to recover 3-methyl-but-3-en-1-ol

The present invention provides a process for preparing an unsaturated alcohol of the formula (I), wherein one of Rand Ris preferably C-C-alkyl or C-C-alkenyl containing one double bond and the other one is preferably hydrogen or methyl; Ris preferably hydrogen; which comprises subjecting an educt composition including at least 75% by weight of an unsaturated aldehyde of the formula (II) wherein R, Rand Rpreferably have the above defined meanings, to a hydrogenation in the presence of a catalyst and a tertiary amine; wherein the tertiary amine is used in an amount ranging from 0.001 to 0.7% by weight, based on the total amount of the liquid reaction mixture. The invention further relates to the nerol compound obtainable by the inventive process, to a fragrance or aroma substance composition comprising the nerol compound obtainable by the inventive process, to a method for imparting and/or intensifying an odor or flavor of a product, and also to perfumed or aromatized products comprising a nerol compound obtainable by the inventive process. 

Process for preparing 2,3-unsaturated alcohols

The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral &#x3b1;,&#x3b2;-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral &#x3b1;,&#x3b2;-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I):

Method for synthesizing optically active carbonyl compounds

The present invention relates to a method for preparing 2'-O-fucosyllactose, the 2&#x2032;-O-fucosyllactose obtainable by this method and the use thereof. The method comprises reacting the persilylated, protected fucose derivatives of the formula (I) below, with at least one tri(C-C-alkyl)silyl iodide and subsequently reacting the product thus obtained with the compound of the general formula (II), in the presence of a base.  In the formulae (I) and (II), the variables are each defined as follows:

Method for preparing 2'-O-fucosyllactose

The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subject The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subjected to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bottoms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3. ted to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bottoms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3.

Process for recovering 3-methylbut-3-en-1-ol

The present invention relates to a process for purifying ethoxyquin by distillation, to high-purity ethoxyquin obtainable by means of distillative purification and to the use thereof, particularly as additive in foodstuffs and feedstuffs.

Method for the purification of ethoxyquin

Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols in the presence of a liquid phase wherein the liquid phase contains 0.1 to less than 25 weight-% water and wherein the liquid phase contains at least 25 weight-% of alcohol(s) of general formula (II) and alpha, beta unsaturated aldehyde(s) of general formula (I) and wherein the oxidant is oxygen and/or hydrogen peroxide.

Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols in the presence of a liquid phase

An incipient wetness impregnation method for preparing a tin-containing zeolitic material having framework type BEA, a novel tin-containing zeolitic material having framework type BEA and its use.

Tin-containing zeolitic material having a BEA framework structure

Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols where the oxidant is oxygen in the presence of a catalyst comprising platinum on a support in the presence of a liquid phase which contains at least 25 weight-% water based on the total weight of the liquid phase.

The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral &#x3b1;,&#x3b2;-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral &#x3b1;,&#x3b2;-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): 

A process for preparing 2,6-dimethyl-5-heptenal, comprising oxidizing citral of which more than 50% are present as geranial with hydrogen peroxide in the presence of a catalyst comprising a Baeyer-Villiger oxidation catalyst, preferably a tin-containing molecular sieve.

Process for the preparation of melonal

The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral &#x3b1;,&#x3b2;-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral &#x3b1;,&#x3b2;-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which

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Speyer, Germany

Andreas Keller