公开(公告)号：US3661904A

公开(公告)日：1972-05-09

申请号：US3661904D

申请日：1970-05-07

Applicant: HODOGAYA CHEMICAL CO LTD

Inventor： IIZUKI MASAO ,  IGARI NORIO ,  ITO SHINYA

IPC: C07D237/22 ,  C07D51/04

CPC classification number: C07D237/22

Abstract: 2-ALKYL-4,5-DICHLORO - 6 - AMINOPYRIDAZONES-3 OF THE FORMULA:

2-R,4,5-DI(CL-),6-NH2-PYRIDAZIN-3(2H)-ONE

WHEREIN R IS AN ALKYL GROUP HAVING 1 TO 4 CARBON ATOMS ARE INTERMEDIATES FOR THE PRODUCTION OF MONOAZO DYESTUFFS HAVING AN AFFINITY TO METAL-CONTAINING POLYOLEFINS AND POLYESTERS. THESE COMPOUNDS ARE PREPARED BY NITRATING THE CORREPSONDING 2-ALKYL-4,5-DICHLORO-PYRIDAZONES-3 AND REDUCING THE 6-NITRO GROUP OF THE INTERMEDIATE TO AN AMINO GROUP.

公开(公告)号：US3496160A

公开(公告)日：1970-02-17

申请号：US3496160D

申请日：1966-07-14

Applicant: HODOGAYA CHEMICAL CO LTD

Inventor： IIZUKA MASAO ,  IGARI NORIO ,  ITO SHINYA

IPC: C09B62/165 ,  C09B29/26 ,  C08K1/74 ,  C09B29/12

CPC classification number: C09B62/165 ,  Y10S8/922 ,  Y10S8/928