公开(公告)号：DE3309169A1

公开(公告)日：1984-09-20

申请号：DE3309169

申请日：1983-03-15

Applicant: BASF AG

Inventor： JANITSCHKE LOTHAR DR ,  HOFFMANN WERNER DR

IPC: A23L2/56 ,  A23L27/20 ,  A23L27/29 ,  C07C45/29 ,  C07C45/42 ,  C07C49/603 ,  C07C49/647 ,  C07C49/713 ,  C07C49/743 ,  C07C69/00 ,  C07C69/145 ,  C07C403/00 ,  C07C403/14 ,  C07C403/16 ,  C11B9/00 ,  C11D3/50 ,  A23L1/226 ,  A23L1/235 ,  A23L2/26 ,  A61K7/46

Abstract: Process for the preparation of the compounds of the formulae Ia and Ib Ia Ib wherein A. 2,4,4-trimethylcyclohex-2-en-1-one oxime of the formula IIb (IIb) is treated with a strong aqueous acid at from 30 DEG to 80 DEG C., preferably from 40 DEG to 70 DEG C., B. the resulting ketone of the formula IIIb (IIIb) is oxidized in a conventional manner, and C. if desired, the resulting compound Ib is isomerized in a conventional manner. Compounds of the formula A (A) where R is one of the following radicals: -CH(OH)-CH2-CH=CH2 (IIIb), -CH(OH)-CH3 (IIIc), -CH2OH (IIId), -CH(OH)-CH=CH2 (IIIe), -CH(OCOCH3)-CH3 (IIIf), -CH2-OCOCH3 (IIIg), -CO-CH2-CH=CH2 (Ib), -CO-CH3 (Ic), and -CO-CH=CH2 (Ie). The compounds IIIb to IIIg, Ib, Ic and Ie are useful scents and aromas, and furthermore may become important intermediates for novel carotenoids. They can be prepared in a relatively simple manner from compounds which are very readily available.

公开(公告)号：DE3060939D1

公开(公告)日：1982-11-18

申请号：DE3060939

申请日：1980-05-16

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR ,  THOEMEL FRANK DR

IPC: C07D309/20 ,  C07D309/22 ,  C11B9/00 ,  A61K7/46

Abstract: 2-(1-methyl-eth-1-en-1-yl)-,2-(1-methyl-prop-1-en-1-yl)-, 2-(eth-1-en-1-yl)- and 2-(prop-1-en-1-yl)-4-methyl-2,3-dihydro-6H-pyrans substituted in the 2-position of the side chain by hydroxymethyl, acyloxymethyl, alkoxycarbonylmethyl, halomethyl or formyl. The novel 4-methyl-2,3-dihydro-6H-pyrans are obtained by reaction of 3-methyl-but-3-en-1-ol with an appropriately substituted unsaturated aldehyde in the presence of an acid catalyst. The products possess very interesting organoleptic properties.

公开(公告)号：DE2861063D1

公开(公告)日：1981-11-26

申请号：DE2861063

申请日：1978-12-07

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR

IPC: C07C29/04 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C31/20 ,  C07C67/00 ,  C11B9/00

Abstract: An improved process for the preparation of hydroxycitronellol by an addition reaction of water with citronellol. This reaction takes place directly on heating a homogeneous solution of citronellol in a mixture of water and an alpha -methyl-branched lower alkanol in the presence of a strongly acid ion exchanger. Hydroxycitronellol may be used as a fragrance material and is an important intermediate for the preparation of the highly desired scent hydroxycitronellal.

公开(公告)号：CH613178A5

公开(公告)日：1979-09-14

申请号：CH1055575

申请日：1975-08-13

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR

IPC: A23L27/20 ,  C07C45/51 ,  C07C45/62 ,  C07C45/67 ,  C07C47/02 ,  C07C47/21 ,  C07C47/20

公开(公告)号：CH598243A5

公开(公告)日：1978-04-28

申请号：CH313076

申请日：1976-03-12

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR ,  MUELLER NORBERT DR ,  FRAUENBERG KARL VON DR

IPC: C07D311/94 ,  C07D313/00

Abstract: New macrocyclic ketolactones, especially 15-methyl-15-ethyl- and 15,15-dimethyl-12-oxo-15-hydroxytetradecanecarboxylic acid lactone.

公开(公告)号：DE2439198A1

公开(公告)日：1976-03-04

申请号：DE2439198

申请日：1974-08-16

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR

IPC: A23L27/20 ,  C07C45/51 ,  C07C45/62 ,  C07C45/67 ,  C07C47/02 ,  C07C47/21 ,  C07C47/20

公开(公告)号：DE2226212A1

公开(公告)日：1973-12-13

申请号：DE2226212

申请日：1972-05-30

Applicant: BASF AG

Inventor： MUELLER ERNST DR ,  HOFFMANN WERNER DR ,  AQUILA WERNER DR ,  SIEGEL HARDO DR

IPC: C07C45/49 ,  C07C47/19 ,  C07C47/10

Abstract: Title cpds. are of formula (I):- (where R1 and R4 are Me or Et; R2 and R3 are H or Me; R5 is H or 1-6C alkyl; n is 1 or 2). They are prepd. by reacting unsatd. alcohols of formula (II):- with CO/H2 at 50-200 degrees C./100-1500 atmos. press. in the presence of rhodium carbonyl complexes and hydrogenating the resulting unsatd. aldehyde in the presence of noble metal catalysts.

公开(公告)号：DE1768596B1

公开(公告)日：1972-03-23

申请号：DE1768596

申请日：1968-06-01

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR ,  PASEDACH HEINRICH DR ,  POMMER HORST DR

IPC: A61K31/565 ,  C07C49/21 ,  C07C403/00 ,  C11B9/00 ,  C07C49/61

公开(公告)号：DE1768811A1

公开(公告)日：1971-12-02

申请号：DE1768811

申请日：1967-08-22

Applicant: BASF AG

Inventor： HOFFMANN WERNER DR ,  PASEDACH HEINRICH DR ,  POMMER HORST PROF DR

IPC: C07C29/42 ,  C07C45/51 ,  C07C45/67 ,  C11B9/00

公开(公告)号：DE1964405A1

公开(公告)日：1971-07-01

申请号：DE1964405

申请日：1969-12-23

Applicant: BASF AG

Inventor： HIMMELE WALTER DR ,  HOFFMANN WERNER DR

IPC: A47F5/02 ,  C07C33/025 ,  C11B9/00 ,  C07C33/02