公开(公告)号：DE2439278A1

公开(公告)日：1976-02-26

申请号：DE2439278

申请日：1974-08-16

Applicant: BASF AG

Inventor： FUERST ERNST DR ,  MUELLER HERBERT DIPL CHEM DR

IPC: C07D251/04

Abstract: having general formula (I), (where each R is opt. inert gp.-substd. 1-20C alkyl or cycloalkyl) are prepd. by reacting equimolar quantities of HCHO and a prim. aliphatic amine RNH2 in aq. or alcoholic soln. and sepn. of solvent, by process in which (a) the reactants are mixed with cooling at 40 degrees C and (b) water is sepd. from reaction mixt. in a thin layer evapg. at 100-110 degrees C with a period of dwell 120 secs. (I) can be prepd. continuously in almost quantitative yields, e.g. >96%, and high purity, e.g. >99%, in 1 step, without additional purificn.; (ii) (I) obtd. are transparent and water-white. 20-50% aq. HCHO solns. are prefd.

公开(公告)号：DE3128889A1

公开(公告)日：1983-02-10

申请号：DE3128889

申请日：1981-07-22

Applicant: BASF AG

Inventor： MUELLER HERBERT DIPL CHEM DR ,  AXEL HARTMUT DIPL CHEM DR ,  WITTWER ARNOLD DIPL CHEM DR

IPC: B01J31/04 ,  B01J31/40 ,  C07C209/16 ,  C07C211/08 ,  C07C87/127 ,  C07C85/06

Abstract: Tertiary amines are produced by reacting a secondary amine having identical or different substituents, in particular a readily volatile amine, with a primary or secondary monohydric or polyhydric alcohol, in particular a sparingly volatile fatty alcohol, over a copper catalyst formed directly from copper formate under the reaction conditions.

公开(公告)号：DE3042960A1

公开(公告)日：1982-07-08

申请号：DE3042960

申请日：1980-11-14

Applicant: BASF AG

Inventor： MUELLER HERBERT DIPL CHEM DR ,  HUCHLER OTTO HERMANN DIPL CHEM

IPC: C08G65/00 ,  C07D307/08 ,  C08G65/20 ,  C08G65/30 ,  C08G65/32 ,  C08G65/324 ,  C08G65/48 ,  C08J11/00

Abstract: A process for depolymerizing polytetramethylene glycol ethers, wherein the latter are heated at from 90 DEG to 180 DEG C. in the presence of a bleaching earth.

公开(公告)号：DE2748788A1

公开(公告)日：1979-05-03

申请号：DE2748788

申请日：1977-10-31

Applicant: BASF AG

Inventor： MUELLER HERBERT DIPL CHEM DR ,  HUCHLER OTTO HERMANN DIPL CHEM

IPC: C07D307/08

Abstract: Tetrahydrofuran is purified by treatment with bleaching earth.

公开(公告)号：DE2727330A1

公开(公告)日：1979-01-04

申请号：DE2727330

申请日：1977-06-16

Applicant: BASF AG

Inventor： SCHOENLEBEN WILLIBALD DIPL CHE ,  HOFFMANN HERWIG DIPL CHEM DR ,  LENGSFELD WOLFGANG DIPL CHEM D ,  MUELLER HERBERT DIPL CHEM DR

IPC: C07C45/66 ,  C07C45/72 ,  C07C45/74 ,  C07C47/20

Abstract: Prepn. of 2-methyl-2-penten-1-al (I) is carried out by converting propionaldehyde (II) to 2-methyl-3-hydroxypentan-1-al and then to (I) in the presence of an aq. non-volatile alkali. The improvement comprises continuing the reaction until substantially all the (II) has disappeared, and then immediately dehydrating the resulting 2-phase reaction mixt. (I) is useful as an intermediate for pharmaceuticals, plasticisers, fibre raw materials and auxiliaries. The process gives 97-99% yields without intermediate sepn. of the organic phase (c.f. US 3432557). It is esp. suitable for continuous operation.

公开(公告)号：DE2621449A1

公开(公告)日：1977-12-01

申请号：DE2621449

申请日：1976-05-14

Applicant: BASF AG

Inventor： MUELLER HERBERT DIPL CHEM DR ,  HOFFMANN HERWIG DIPL CHEM DR ,  TOUSSAINT HERBERT DIPL CHEM DR

IPC: C07C20060101 ,  C07C87/02 ,  C07C85/24

Abstract: Prepn. of mono- or poly-, symmetrical or asymmetrical tert-amines comprises reacting a prim. or sec. amine R1-NH-R2 (where R1 and R2 are each H, alkyl or cycloalkyl gps., opt. substd. by inert substs. which, in turn, may carry amino gps. -NHR1) with mono- or di-hydric prim. or sec. - alcohols. The reaction is catalysed by a hydrogenation/dehydrogenation catalyst, opt. in the presence of H2, and the amine is fed into the liq. reaction mixt. contg. the mixt. of alcohol required for the reaction and the proportion of water formed in the reaction is eliminated. High yields of tert-amines are obtd. with low amts. of prim- and sec-amine contamination. Since the alcohol reactant is completely consumed the sepn. of alcohol from tert-amine, which is usually difficult and energy-consuming, is avoided.

公开(公告)号：DE2611374A1

公开(公告)日：1977-09-29

申请号：DE2611374

申请日：1976-03-18

Applicant: BASF AG

Inventor： SCHULZ ALFRED DR ,  VOGES DIETER DIPL CHEM DR ,  MUELLER HERBERT DIPL CHEM DR ,  HOFFMANN HERWIG DIPL CHEM DR

IPC: B01J23/86 ,  C07C29/149

Abstract: Catalyst (I) for the hydrogenation of a carboxylic ester to the alcohol corresp. to the carboxylic acid is based on opt. supported Cu, Cr and opt. an alkali metal and other elements. At least one alkaline earth metal is added later. (I) is obtd. by mixing Cu and/or Co cpds. (sic) with alkali and/or alkaline earth cpd(s). in solid or dissolved form and opt. together with a support and pptn. from the soln. if necessary, so that a solid mixt. is formed. The mixt. is calcined at 100-500 degrees C and the surface is treated with an alkaline earth metal. (I) is then activated by redn. (I) is esp. used in the redn. of liquid or solid satd. or unsatd. dicarbocylic esters of diols to the corresp. satd. diols, e.g. the adipate (II) of hexandiol (III), esp. mixts. of esters obtd. in the oxidn. of hydrocarbons. E.g. a calcined mixt. of 66 (wt)% Cu oxide and 3% Na oxide was sprayed with Ca nitrate soln., dried and calcined, giving a catalyst contg. 3-3.6% ca Wrt Cu. This was used in the hydrogenation of (II), giving a 98.5-99% yield of (III).

公开(公告)号：DE2503541A1

公开(公告)日：1976-08-19

申请号：DE2503541

申请日：1975-01-29

Applicant: BASF AG

Inventor： HOVEMANN FRIEDRICH DIPL CHEM D ,  MUELLER HERBERT DIPL CHEM DR

IPC: C10M20060101 ,  C10M169/00 ,  C10M1/18 ,  C10M1/20 ,  C10M1/34

公开(公告)号：DE2459163A1

公开(公告)日：1976-06-24

申请号：DE2459163

申请日：1974-12-14

Applicant: BASF AG

Inventor： HUCHLER OTTO HERMANN DIPL CHEM ,  WINDERL SIEGFRIED DIPL CHEM DR ,  MUELLER HERBERT DIPL CHEM DR ,  HOFFMANN HERWIG DIPL CHEM DR

IPC: C08G65/20

Abstract: FeCl3-catalysed tetrahydrofuran polymsn. takes place in the presence of a carboxylic acid anhydride, acting as promoter, pref. at 0-70 (esp. 20-65) degrees C. terahydrofuran polymers can be converted to alpha, omega-polytetramethylene ether glycols. Process is non-polluting, cheap, sufficiently variable to allow formation of polymers having mol. wt. 500-3000. Polymer mol. wt. is inversely proportional to anhydride concn.

公开(公告)号：DE3221692A1

公开(公告)日：1983-12-15

申请号：DE3221692

申请日：1982-06-09

Applicant: BASF AG

Inventor： MUELLER HERBERT DIPL CHEM DR

IPC: C08G63/00 ,  C08G63/82 ,  C08G63/08 ,  C08G63/10

Abstract: Polycaprolactone is prepared by polymerization of epsilon -caprolactone by a process wherein a mixture of epsilon -caprolactone with a monohydric or polyhydric alcohol is passed, at from 50 DEG to 160 DEG C., over a fixed-bed catalyst comprising essentially anhydrous bleaching earth in the form of moldings.