公开(公告)号：DE3710569A1

公开(公告)日：1988-05-19

申请号：DE3710569

申请日：1987-03-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： KAWABATA YASUJIRO ,  MATSUMOTO MUTSUYOSHI ,  TANAKA MOTOO ,  ISHIZUKA YASUKO ,  NAKANISHI HIROSHI ,  TAGAKI WAICHIRO

IPC: C08B37/00 ,  C08B37/16 ,  C09B67/08 ,  C09B67/36

Abstract: The invention relates to a cyclodextrin compound and inclusion compounds comprising it. This cyclodextrin compound or its inclusion compound can be used to form ultrathin films on a solid substrate. These ultrathin films are used, for example, as protective film for compounds which are sensitive to light or oxygen or as chromatographic support with which organic molecules can be separated.

公开(公告)号：CH630066A5

公开(公告)日：1982-05-28

申请号：CH368377

申请日：1977-03-23

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OGATA IKUEI ,  KAWABATA YASUJIRO

IPC: C07C309/44 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C309/28 ,  C07C143/38

公开(公告)号：DE2712577A1

公开(公告)日：1977-11-03

申请号：DE2712577

申请日：1977-03-22

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OGATA IKUEI ,  KAWABATA YASUJIRO

IPC: C07C309/44 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C309/28 ,  C07C143/22

Abstract: The anthraquinone sulphuration mixture treated comes from the preparation of anthraquinone- alpha -sulphonic acid by sulphurating anthraquinone in the presence of a metal catalyst comprising a carrier loaded with the metal. The sulphuration mixture is mixed with water and the mixture is treated with hydrogen to reduce a catalyst metal ion dissolved in the aqueous medium to the metal and depositing the metal on the catalyst carrier and for simultaneously converting the alpha -sulphurated anthraquinone into its leuco form. Unconverted anthraquinone and the metal catalyst in the form of the carrier loaded with the deposited metal are separated from the mixture and recovered. Finally, the alpha -sulphurated anthraquinone is oxidised from the leuco form to the anthraquinone form with simultaneous precipitation of the latter in the form of the alkali metal salt thereof. The alpha -sulphurated anthraquinone can be used as a starting material for blue colorants.