公开(公告)号：CA1043781A

公开(公告)日：1978-12-05

申请号：CA207385

申请日：1974-08-20

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE

IPC: C07D221/18 ,  C09B5/14

Abstract: A new process for preparing 3,3 - thio - bis 2-me-thoxy-1-azabenzathrone!, a useful intermediate in the synthesis of dyestuffs, is disclosed. The process involves reacting 2-methoxy-1-azabenzanthrone with sulfur chlorides in suspension or solution in an inert solvent under heating, and recovering the reaction product from the reaction mass, e.g., by filtering.

公开(公告)号：DE2651604A1

公开(公告)日：1977-06-02

申请号：DE2651604

申请日：1976-11-12

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE ,  GRECU RENATO

IPC: C07D285/10

Abstract: 3,4-DICYANO-1,2,5-THIADIAZOLE IS PREPARED BY REACTING DIAMINOMALEONITRILE (DAMN) with thionyl chloride (SOCl2) at a temperature of 40 DEG C. up to the boiling point of thionyl chloride wherein the molar ratio of SOCl2/DAMN is between 2:1 and 10:1.

公开(公告)号：DE2553830A1

公开(公告)日：1976-06-10

申请号：DE2553830

申请日：1975-11-29

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE ,  BORSOTTI GIAMPIERO ,  PAFFONI CAMILLO

IPC: C09B1/54 ,  D06P1/20 ,  D06P3/24 ,  D06P3/26

公开(公告)号：DE2434466A1

公开(公告)日：1975-02-06

申请号：DE2434466

申请日：1974-07-18

Applicant: MONTEDISON SPA ,  ACNA

Inventor： RIBALDONE GIUSEPPE ,  BORSOTTI GIAMPIERO ,  GONZATI FRANCO

IPC: C09B5/14 ,  C07D221/18 ,  C09B27/00

公开(公告)号：DE2323543A1

公开(公告)日：1973-11-22

申请号：DE2323543

申请日：1973-05-10

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE ,  BORSOTTI GIAMPIETRO

IPC: C07C69/95 ,  C07C51/00 ,  C07C66/02 ,  C07C67/00 ,  C07C65/20

Abstract: Anthraquinone-1-acetic acid and esters thereof are prepared by reacting anthraquinone-1-diazonium salts with 1, 1-dichloroethylene in the presence of cuprous salts and H2O or alcohols.

公开(公告)号：DE1667601A1

公开(公告)日：1971-07-01

申请号：DE1667601

申请日：1967-02-25

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE ,  BORSOTTI GIANPAOLO

IPC: C01B21/086 ,  C01B21/54

公开(公告)号：CA820781A

公开(公告)日：1969-08-19

申请号：CA820781D

Applicant: MONTEDISON SPA

Inventor： SMAI FRANCO ,  GARBUGLIO CARMINE ,  RIBALDONE GIUSEPPE

公开(公告)号：AT268319B

公开(公告)日：1969-02-10

申请号：AT191867

申请日：1967-02-27

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE ,  SMAI FRANCO ,  CARBOGLIO CARMINE

IPC: C01B20060101

公开(公告)号：IT1070748B

公开(公告)日：1985-04-02

申请号：IT2768376

申请日：1976-09-27

Applicant: MONTEDISON SPA

Inventor： RIBALDONE GIUSEPPE ,  GRECU RENATO ,  PAFFONI CAMILLO ,  SIRONI GIUSEPPE

IPC: C09B1/44 ,  C09B1/516 ,  C09B1/54 ,  D06P1/24 ,  C09B

Abstract: The present invention relates to a new class of compounds belonging to the anthraquinone series, having the general formula: (I) wherein R, R', R'', R''', R' are indifferently H or Chlorine,

公开(公告)号：CA1039719A

公开(公告)日：1978-10-03

申请号：CA205104

申请日：1974-07-17

Applicant: MONTEDISON SPA ,  ACNA

Inventor： RIBALDONE GIUSEPPE ,  BORSOTTI GIAMPIERO ,  GONZATI FRANCO

IPC: C09B5/14 ,  C07D221/18 ,  C09B27/00 ,  C09B5/02

Abstract: 1-aza-2-hydroxybenzanthrone, useful as an intermediate for synthesizing dyes is obtained by the direct reaction of alkyl esters of anthraquinone-1-acetic acid with ammonia in hydroxylated solvents and in the presence of strong bases and/or reducing substances.