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公开(公告)号:US5322941A
公开(公告)日:1994-06-21
申请号:US817778
申请日:1992-01-08
申请人: Bernhard Mees , Gerhard Zirkenbach
发明人: Bernhard Mees , Gerhard Zirkenbach
IPC分类号: C07D251/20 , C07D251/16
CPC分类号: C07D251/20
摘要: The invention relates to a process for the preparation of pyrene compounds of the formula ##STR1## by reaction of cyanuric chloride with pyrene in the presence of an aluminum halide in an aromatic solvent in a Friedel-Crafts reaction, which comprises using as solvent non-polar, halogen-free aromatic compounds, preferably composed of methyl-, ethyl- and/or propyl-substituted benzene, and carrying out the reaction in the presence of non-aqueous bases, particularly carbonates of alkaline earth and alkali metals, bicarbonates of alkaline earth and alkali metals, and also alkali metal alcoholates of the formula MOR (R=C.sub.1 -C.sub.4 -alkyl, M=alkali metal).
摘要翻译: 本发明涉及一种通过在Friedel-Crafts反应中在芳族溶剂中的卤化铝存在下,将氰尿酰氯与芘反应制备式“芘化合物”的方法,该方法包括使用溶剂型 极性,无卤素的芳族化合物,优选由甲基,乙基和/或丙基取代的苯组成,并在非水性碱,特别是碱土金属和碱金属的碳酸盐,碱金属的碳酸氢盐的存在下进行反应 碱金属和碱金属,以及式MOR(R = C 1 -C 4烷基,M =碱金属)的碱金属醇化物。
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公开(公告)号:US20050251931A1
公开(公告)日:2005-11-17
申请号:US10506136
申请日:2003-02-20
IPC分类号: C07D231/06 , C08K5/00 , C09B67/44 , D01F1/04 , D01F6/18 , D06L3/12 , D06P1/00 , D06P3/70 , C09B1/00
CPC分类号: C07D231/06 , C08K5/0041 , D01F1/04 , D01F6/18 , D06L4/629 , D06L4/664
摘要: The claimed liquid formulations contain an organic acid and a branched mono- or di-alcohol. The addition of the alcohol improves the storage stability of the liquid formulations.
摘要翻译: 要求保护的液体制剂含有有机酸和支链单醇或二醇。 醇的添加改善了液体制剂的储存稳定性。
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公开(公告)号:US20050101703A1
公开(公告)日:2005-05-12
申请号:US10471951
申请日:2002-03-16
CPC分类号: C08G63/78 , C08G63/183 , C08K5/0041 , C08K5/34 , C08K5/353 , C08L67/02
摘要: In the production of polyester from a polyol, preferably di-alcohol, and a polycarboxylic acid, preferably dicarboxylic acid, an optical brightener is added in the esterification process whose structure is free from open-chain ethylenic double bonds and as a result is chemically stable to the free acid used.
摘要翻译: 在从多元醇,优选二醇和多元羧酸,优选二羧酸的聚酯的制造中,在其结构不含开链烯属双键的酯化方法中加入荧光增白剂,结果是化学稳定 到使用的游离酸。
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公开(公告)号:US07300474B2
公开(公告)日:2007-11-27
申请号:US10506136
申请日:2003-02-20
CPC分类号: C07D231/06 , C08K5/0041 , D01F1/04 , D01F6/18 , D06L4/629 , D06L4/664
摘要: The claimed liquid formulations contain an organic acid and a branched mono- or di-alcohol. The addition of the alcohol improves the storage stability of the liquid formulations.
摘要翻译: 要求保护的液体制剂含有有机酸和支链单醇或二醇。 醇的添加改善了液体制剂的储存稳定性。
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