公开(公告)号：DE102005036687A1

公开(公告)日：2007-02-08

申请号：DE102005036687

申请日：2005-08-04

Applicant: BASF AG

Inventor： RICHTER INGO ,  PUETTER HERMANN ,  GRIESBACH ULRICH ,  GERLACH TILL

IPC: C25B3/23 ,  C07C43/303

Abstract: Process for preparing 1,1,4,4-tetraalkoxybut-2-ene derivatives of the general formula (I), where the radicals R 1 and R 2 are each, independently of one another, hydrogen, C 1 -C 6 -alkyl, C 6 -C 12 -aryl, such as phenyl, or C 5 -C 12 -cycloalkyl or R 1 and R 2 together with the double bond to which they are bound form a C 6 -C 12 -aryl radical, such as phenyl, a phenyl radical substituted by one or more C 1 -C 6 -alkyl groups, halogen atoms or alkoxy groups or a monounsaturated or polyunsaturated C 5 -C 12 -cycloalkyl radical, R 3 , R 4 are each, independently of one another, hydrogen, methyl, trifluoromethyl or nitrile, which comprises electrochemically oxidizing 1,4-dialkoxy-1,3-butadiene of the formula II where the radicals R 1 , R 3 and R 4 have the same meanings as in the formula I, in the presence of a C 1 -C 6 -alkyl alcohol.

公开(公告)号：DE102004035860A1

公开(公告)日：2006-02-16

申请号：DE102004035860

申请日：2004-07-23

Applicant: BASF AG

Inventor： RICHTER INGO ,  GRIESBACH ULRICH ,  BECKER MICHAEL ,  KESSINGER ROLAND

IPC: C25B3/23 ,  C07C43/305

Abstract: Preparation of 2-alkyne-1-acetal compounds (I) comprises electro-chemically oxidizing alcohol compounds (II) in the presence of 1-6C alkyl alcohol (A) or substance. Preparation of 2-alkyne-1-acetal compounds of formula (I) comprises electro-chemically oxidizing alcohol compounds (II) of formula (R 1>-C?=C-CH 2-OH) in the presence of 1-6C alkyl alcohol (A) or substance. R 1>1-20C alkyl, 2-20C alkenyl, 2-20C alkenyl, 3-12C cycloalkyl, 4-20C cycloalkyl-alkyl, 4-10C aryl (all optionally substituted with hydroxy, halo, 1-6C alkoxy, (1-6C alkoxy)-carbonyl, carboxyl or nitrile) or H; and R 2>, R 3>1-6C alkyl or a group of formula (R 1>-C?=C-CH 2-). [Image].

公开(公告)号：DE10344434A1

公开(公告)日：2005-05-12

申请号：DE10344434

申请日：2003-09-25

Applicant: BASF AG

Inventor： GRIESBACH ULRICH ,  SEITZ VERENA ,  MAASE MATTHIAS

IPC: C25B3/25 ,  C25B3/04 ,  C07F9/53 ,  C07F9/50 ,  C07B31/00

Abstract: The invention relates to a method for producing diphenylphosphine oxide (DPPO) or its nucleus-substituted derivatives, diphenylphosphine (DPP) or its nucleus-substituted derivatives or phosphine (PP) or its nucleus-substituted derivatives, starting from triphenylphosphine oxide (TPPO) or the corresponding nucleus-substituted derivatives, or in the case of the production of DPP and PP, starting from triphenylphosphine (TPP) or the corresponding nucleus-substituted derivatives or DPPO. According to said method, the starting products are reduced electrochemically in the presence of ammonia or an amine.

公开(公告)号：CA2655862A1

公开(公告)日：2008-01-10

申请号：CA2655862

申请日：2007-06-27

Applicant: BASF AG

Inventor： GRIESBACH ULRICH ,  KULISCH JOERG ,  WALDVOGEL SIEGFRIED R ,  MALKOWSKY ITAMAR

IPC: C25B3/25 ,  C07C209/30

Abstract: The invention relates to a method for producing an amine, comprising the step of cathodic reduction of a corresponding oxime derivative of general fo rmula (I), wherein R represents C1-6 alkyl or C2-6 alkenyl, which is optiona lly substituted with one or more substituents independently selected from th e group consisting of phenyl, O-C1-6 alkyl, NH-C1-6 alkyl, N(C1-6 alkyl)2, O H and NH2; R1 represents H; C1-6 alkyl or C(O)-C1-6 alkyl and A represents a 5-, 6- or 7-membered hydrocarbon ring which is saturated or which has a dou ble bond and wherein optionally at least one CH2 group is replaced by -O-, - S- -NH-, -N=, or -N(C1-6 alkyl)- and which is optionally substituted with on e or more other substituents independently selected from the group consistin g of phenyl, C1-6 alkyl, O-C1-6 alkyl, NH-C1-6-alkyl, N(C1-6 alkyl)2, OH and NH2; and the oxime derivative, with respect to the carbon ring having the s ubstituent R, having an excess of the R or S form of at least 10 %.

公开(公告)号：CA2617556A1

公开(公告)日：2007-02-08

申请号：CA2617556

申请日：2006-07-31

Applicant: BASF AG

Inventor： GERLACH TILL ,  RICHTER INGO ,  GRIESBACH ULRICH ,  PUETTER HERMANN

IPC: C25B3/23 ,  C07C41/50 ,  C07C43/303

Abstract: Process for preparing 1,1,4,4,-tetraalkoxybut-2-ene derivatives of the gener al formula (I), in which the radicals R1 and R2 independently of one another ar e hydrogen, C1 to C6 alkyl, C6 to C12 aryl such as phenyl, for example, or C5 to C12 cycloalkyl, or R1 and R2, together with the double bond to which they ar e attached, are a C6 to C12 aryl radical such as, for example, phenyl, phenyl substituted one or more times by C1 to C6 alkyl, by halogen or by alkoxy, or a mono- or poly-unsaturated C5 to C12 cycloalkyl radical, and R3 and R4 independently of one another are hydrogen, methyl, trifluoromethyl or nitril e, in which process 1,4-dialkoxy-1,3-butadienes of the formula (II), in which t he radicals R1, R3 and R4 are assigned the same definition as in formula (I), a re electrochemically oxidized in the presence of a C1 to C6 alkyl alcohol.

公开(公告)号：DE102005007285A1

公开(公告)日：2006-08-24

申请号：DE102005007285

申请日：2005-02-17

Applicant: BASF AG

Inventor： GRIESBACH ULRICH ,  PUETTER HERMANN ,  HALBRITTER KLAUS ,  FARDEL ROMAIN ,  COMNINELLIS CHRISTOS

IPC: C25B3/23

Abstract: Preparation of trimethyl orthoformate (I) or tetramethyl orthocarbonate (II) by oxidation, at an electrode, of an electrolyte containing (a) a mixture of methanol (III) and at least one of formaldhyde or formaldehyde dimethylacetal (FMDA), to produce (I); or (b) a mixture of (III) and (I), to produce (II).

公开(公告)号：DE102005007025A1

公开(公告)日：2006-08-24

申请号：DE102005007025

申请日：2005-02-15

Applicant: BASF AG

Inventor： YILMAZ ZEYNEP ,  GRIESBACH ULRICH ,  DITRICH KLAUS

IPC: C25B3/23

Abstract: A process for the regioselective cleavage of secondary amines or amides is described.

公开(公告)号：DE102004005508A1

公开(公告)日：2005-08-25

申请号：DE102004005508

申请日：2004-02-04

Applicant: BASF AG

Inventor： GRIESBACH ULRICH ,  PUETTER HERMANN ,  WALDVOGEL SIEGFRIED R ,  MALKOWSKY ITAMAR ,  ROMMEL CHRISTINA E

IPC: C25B3/29 ,  C25B3/10 ,  C07C37/16 ,  C07C39/44 ,  C07C41/16

Abstract: The invention relates to a method for producing biarylalcohols by means of the electrodimerisation of arylalcohols, said method comprising the following steps: a) an aryloxy compound of the alcohol to be coupled is produced with an element from the group B and Al; b) the aryloxy compounds obtained in a) are electrolytically oxidised and coupled to form the corresponding biaryl derivatives; and c) the desired biaryl alcohols are released. The inventive method enables the dimerisation of arylalcohols with a high degree of selectivity in order to obtain an ortho product.

公开(公告)号：DE102004036853A1

公开(公告)日：2006-03-23

申请号：DE102004036853

申请日：2004-07-29

Applicant: BASF AG

Inventor： GRIESBACH ULRICH ,  ELSNER OLIVER

IPC: C25B3/25 ,  C07F5/04 ,  C25B11/00 ,  C25B15/00

Abstract: Preparation of alkylboronic acid esters (I) comprises electro-chemically reductive coupling of alkylchloride, -bromide or -iodide (alkylhalogen compound (II)) with a boronic acid- or boronic acid ester (III) or 1,1,2,2-tetraalkoxydiborane (IV).

公开(公告)号：DE102004033718A1

公开(公告)日：2006-02-16

申请号：DE102004033718

申请日：2004-07-13

Applicant: BASF AG

Inventor： GRIESBACH ULRICH ,  WINSEL HARALD ,  PUETTER HERMANN

IPC: C25B3/25

Abstract: Process for preparing primary amines having a cyclopropyl unit and a primary amino group bound to an aliphatic or cycloaliphatic carbon atom (amine A) by cathodically reducing oximes having a cyclopropyl unit or oxime derivatives in which the hydrogen atom in the oxime group has been replaced by an alkyl or acyl group (oxime O) at a temperature of from 50 to 100° C. in an essentially anhydrous electrolyte solution in a divided electrolysis cell.