JP2904038B2 - Process for producing 4,6-diaminoresorcinol and its precursor - Google Patents

Process for producing 4,6-diaminoresorcinol and its precursor

Info

Publication number
JP2904038B2
JP2904038B2 JP7003111A JP311195A JP2904038B2 JP 2904038 B2 JP2904038 B2 JP 2904038B2 JP 7003111 A JP7003111 A JP 7003111A JP 311195 A JP311195 A JP 311195A JP 2904038 B2 JP2904038 B2 JP 2904038B2
Authority
JP
Japan
Prior art keywords
resorcinol
reaction
diaminoresorcinol
solvent
bis
Prior art date
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.)
Expired - Lifetime
Application number
JP7003111A
Other languages
Japanese (ja)
Other versions
JPH07242604A (en
Inventor
聖史 小松
和也 南坂
博史 上田
弘一 村田
哲彦 高畠
勲 吉田
Original Assignee
住友化学工業株式会社
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
Priority to JP204194 priority Critical
Priority to JP6-2041 priority
Application filed by 住友化学工業株式会社 filed Critical 住友化学工業株式会社
Priority to JP7003111A priority patent/JP2904038B2/en
Publication of JPH07242604A publication Critical patent/JPH07242604A/en
Application granted granted Critical
Publication of JP2904038B2 publication Critical patent/JP2904038B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【産業上の利用分野】本発明は、4,6−ジアミノレゾ
ルシノールまたはその塩の製造方法に関するものであ
る。本発明はまた、この4,6−ジアミノレゾルシノー
ルまたはその塩の前駆体となりうる化合物の製造方法に
関するものでもある。4,6−ジアミノレゾルシノール
またはその塩は、ポリベンゾビスオキサゾールのモノマ
ーとなりうるものであって、このポリベンゾビスオキサ
ゾールは、高強度および高弾性率を有し、耐熱性および
耐薬品性に優れた特性を有するポリマーとして知られて
いる(例えば、特表昭 61-501452号公報(=WO 85/04178)
や、特開平 2-229143 号公報参照)。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing 4,6-diaminoresorcinol or a salt thereof. The present invention also relates to a method for producing a compound which can be a precursor of 4,6-diaminoresorcinol or a salt thereof. 4,6-diaminoresorcinol or a salt thereof can be a monomer of polybenzobisoxazole, and this polybenzobisoxazole has high strength and high elastic modulus, and is excellent in heat resistance and chemical resistance. It is known as a polymer having properties (for example, Japanese Patent Publication No. 61-501452 (= WO 85/04178)).
And JP-A-2-229143).
【0002】[0002]
【従来の技術】従来より、4,6−ジアミノレゾルシノ
ールの製造方法としては、次のようなものが知