公开(公告)号：HU199434B

公开(公告)日：1990-02-28

申请号：HU86687

申请日：1987-03-03

Applicant: BASF AG

Inventor： SCHULTZ GUENTER ,  TRAUTMANN WALTER ,  SAUTER HUBERT ,  MACKENROTH WOLFGANG

IPC: A01N43/653 ,  C07C43/215 ,  C07C43/225 ,  C07C43/285 ,  C07C43/29 ,  C07C69/14 ,  C07D249/08 ,  C07D301/12 ,  C07D301/14 ,  C07D303/08 ,  C07D303/18 ,  C07D303/22 ,  C07D521/00 ,  C07C329/12

公开(公告)号：DK108387A

公开(公告)日：1987-09-05

申请号：DK108387

申请日：1987-03-03

Applicant: BASF AG

Inventor： SCHULZ GUENTER ,  TRAUTMANN WALTER ,  SAUTER HUBERT ,  MACKENROTH WOLFGANG

IPC: A01N43/653 ,  C07C43/215 ,  C07C43/225 ,  C07C43/285 ,  C07C43/29 ,  C07C69/14 ,  C07D249/08 ,  C07D301/12 ,  C07D301/14 ,  C07D303/08 ,  C07D303/18 ,  C07D303/22 ,  C07D521/00 ,  C07C43/20 ,  C07C154/02

公开(公告)号：CA1180338A

公开(公告)日：1985-01-02

申请号：CA418177

申请日：1982-12-21

Applicant: BASF AG

Inventor： TRAUTMANN WALTER ,  VOGEL FRIEDRICH

IPC: C07D233/32

Abstract: IMPROVED METHOD FOR THE PREPARATION OF 1,3-DISUBSTITUTED 4,5-CIS-DICARBOXY-2-IMIDAZOLIDONES A process for the preparation 1,3-disubstituted 4,5-cis-dicarboxy-2-imidazolidones useful as intermediates in the preparation of Vitamin H (biotin), said intermediates have the general formula in which R is an aliphatic hydrocarbon radical having 1 to 8 carbon atoms, an aralkyl radical or an aromatic hydrocarbon radical, preferably an allyl radical or a benzyl radical, comprising reacting a defined diaminosuccinic acid with phosgene in the presence of an alkali metal hydroxide.