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Title:
ペリレン-3,4:9,10-テトラカルボン酸ジイミドの製造法およびペリレン-3,4:9,10-テトラカルボン酸二無水物の製造法ならびにナフタリン-1,8-ジカルボン酸イミドの製造法
Document Type and Number:
Japanese Patent JP4695841
Kind Code:
B2
Abstract:
A process for preparing perylene-3,4:9,10-tetracarboxylic dianhydride, comprising: dimerizing a naphthalene-1,8-dicarboximide of the formula IIa; reoxidizing the resulting alkali metal salt of the leuco form of the perylene-3,4:9,10-tetracarboxylic diimide of the formula Ia; hydrolyzing the diimide to the tetraalkali metal salt of perylene-3,4:9,10-tetracarboxylic acid in the presence of an inert organic solvent, of an alkali metal base and of water; and subjecting the tetraalkali metal salt of perylene-3,4:9,10-tetracarboxylic acid to the action of an aqueous inorganic acid to convert it into perylene-3,4:9,10-tetracarboxylic dianhydride; wherein R3 is cyclohexyl or phenyl which may each be substituted by up to three C1-C4-alkyl radicals, and the dimerizing is in a substantially homogeneous reaction medium consisting essentially of an apolar aprotic organic solvent and an alkali metal base.

Inventors:
Bernhard Dung
Felix Muller
Arnoveme
Willie Helfer
Volker Weilauho
Georg Henning
Application Number:
JP2003587887A
Publication Date:
June 08, 2011
Filing Date:
April 15, 2003
Export Citation:
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Assignee:
BASF SE
International Classes:
C07D221/14; C09B5/62; C07D487/06; C09B57/08
Domestic Patent References:
JP2001313175A
JP2000208265A
JP11029499A
JP3223282A
JP11502545A
JP9194746A
Foreign References:
US3371092
US4197111
WO2002014318A1
Other References:
Journal of Organic Chemistry,2001年,66(1),p.94-98
Journal of Physical Chemistry A,2000年,104(28),p.6545-6551
Journal of Physical Chemistry,1996年,100(6),p.2001-2011
Bulletin of the Chemical Society of Japan,1988年,61(6),p.2238-2240
Farmaco, Edizione Scientifica,1970年,25(3),p.203-225
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel