Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KKfiledCriticalAsahi Chemical Industry Co Ltd
Priority to JP12788280ApriorityCriticalpatent/JPS5753567A/en
Publication of JPS5753567ApublicationCriticalpatent/JPS5753567A/en
NEW MATERIAL:An azomethine compound of formula I [X is halogen; n is an integer 0W4; R is (substituted) aromatic compound residue; B is O or NR].
EXAMPLE: The compound of formula II.
USE: A pigment.
PROCESS: An isoindoline compound of formula III (A is O or NCONHR), e.g. the compound of formula IV, is condensed in the presence of a condensing (accelerating) agent, e.g. pyridine or triethylamine, at 150°C or above, preferably 170°C or above, to give the compound of formula I.
COPYRIGHT: (C)1982,JPO&Japio
JP12788280A1980-09-171980-09-17Converting method into azomethine compound
PendingJPS5753567A
(en)