公开(公告)号：DE19940641A1

公开(公告)日：2001-03-01

申请号：DE19940641

申请日：1999-08-26

Applicant: BASF AG

Inventor： PAUST JOACHIM ,  ERNST HANSGEORG ,  KACZMAREK REINHARD ,  JAEDICKE HAGEN

IPC: C07B61/00 ,  C07C231/08 ,  C07C233/18 ,  C07C233/47 ,  C07C233/69 ,  C07C233/83 ,  C07C231/12 ,  C07C233/46 ,  C07C233/17

Abstract: Preparation of N-acyl derivatives (I) using readily available starting materials. N-acyl derivatives of formula R -C(O)N(H)C(R )X (I) are prepared by reacting, in the presence of a compound of formula R -COOH (II), a carbonic acid amide of formula R -CONH2 (III) and a glyoxalmonoacetal derivative of formula R C(O)C(OR )OR (IV). R , R = H or optionally substituted alkyl or aryl; R ,R = 1 - 12C alkyl; and X = CH(OR ) or COOR . An Independent claim is also included for a compound of formula R -C(O)N(H)C(R )C(OR )OR (V).

公开(公告)号：NO942523D0

公开(公告)日：1994-07-04

申请号：NO942523

申请日：1994-07-04

Applicant: BASF AG

Inventor： ERNST HANSGEORG ,  DOBLER WALTER ,  PAUST JOACHIM ,  RHEUDE UDO

IPC: C07C41/18 ,  C07C45/45 ,  C07C49/303 ,  C07C403/24 ,  C07D317/46 ,  C07D317/50 ,  C07D317/54 ,  C07D407/06 ,  C07D407/12 ,  C07F9/54 ,  C09B23/10 ,  C07D

Abstract: Compounds of the general formula I in which R is H or C1-C4-alkyl, R is C1-C4-alkyl and R is an ether, silyl ether or acetal protective group which can be converted into a hydroxyl group by hydrolysis, in particular one of the radicals and a process for the production of these compounds by reacting an alkenyne of the general formula II in an inert solvent with additional use of lithium amide with a cyclohexenone of the general formula III and the use of the compounds of the formula I for the production of astaxanthin.

公开(公告)号：DK382785D0

公开(公告)日：1985-08-23

申请号：DK382785

申请日：1985-08-23

Applicant: BASF AG

Inventor： ERNST HANSGEORG ,  LITTMANN WOLFGANG ,  PAUST JOACHIM

IPC: C07C67/00 ,  C07C253/00 ,  C07C253/30 ,  C07C255/27 ,  C07C255/30 ,  C07D239/42 ,  C07C ,  C07D

Abstract: alpha -(o-Chlorophenyl)-aminomethylene- beta -formylaminopropionitrile, process for its preparation by reacting a metal salt of alpha -formyl- beta -formylaminopropionitrile with a salt of o-chloroaniline in an aqueous medium, and use of the product to prepare the compound of the formula by reaction with acetamidine. The pyrimidine thus obtained is an intermediate for the preparation of vitamin B1.

公开(公告)号：CA1191157A

公开(公告)日：1985-07-30

申请号：CA412662

申请日：1982-10-01

Applicant: BASF AG

Inventor： ERNST HANSGEORG ,  VOGEL FRIEDRICH ,  PAUST JOACHIM

IPC: C07C17/16 ,  B01J27/122 ,  C07B61/00 ,  C07C17/00 ,  C07C17/26 ,  C07C17/263 ,  C07C19/01 ,  C07C19/075 ,  C07C29/147 ,  C07C29/40 ,  C07C51/363 ,  C07C51/487 ,  C07C53/19 ,  C07C67/00 ,  C07D311/72 ,  C07C19/02

Abstract: (2R,6R)-l-Chloro-2,6,10-tri-methyl-undecane I, (R)-(+)-.beta.-chloro isobutyric acid II, (S)-(+)-1-bromo-3-chloro-2-methylpropane IV and (2R)-(+)-l-chloro-2,6 dimethyl-heptane V are novel optically active units for the synthesis of the side chain of (R,R,R)-.alpha.-tocopherol. In the process according to the invention, the optically active C14-chloride I is obtained in 6 simple reaction steps starting from II, via the novel intermediates IV and V, in accordance with the following equation: (II) (III) (IV) (V) (VII) + (IV) (I)