DE134980C - - Google Patents

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Publication number
DE134980C
DE134980C DENDAT134980D DE134980DA DE134980C DE 134980 C DE134980 C DE 134980C DE NDAT134980 D DENDAT134980 D DE NDAT134980D DE 134980D A DE134980D A DE 134980DA DE 134980 C DE134980 C DE 134980C
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DE
Germany
Prior art keywords
dimethyl ether
parts
june
alcohol
melting
Prior art date
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DENDAT134980D
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German (de)
Publication of DE134980C publication Critical patent/DE134980C/de
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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44Iso-indoles; Hydrogenated iso-indoles
    • C07D209/48Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

ΛΙ 134980 KLASSE 12 o. ΛΙ 134980 CLASS 12 o.

Zusatz zum Patente 134979 vom 2. Juni 1901.Addendum to patent 134979 of June 2, 1901.

Patentirt im Deutschen Reiche vom 23. Juni 1901 ab. Längste Dauer: 1. Juni 1916.Patented in the German Empire on June 23, 1901. Longest duration: June 1, 1916.

In der Beschreibung des Patents 134979 wurde ein Verfahren zur Darstellung von Benzylphtalimidderivaten beschrieben, darin bestehend, dafs man Oxymethylphtalimid mit aromatischen Verbindungen bei Gegenwart von Schwefelsäure condensirt.In the specification of the patent 134979 a method for the representation of Benzylphtalimidderivaten described, consisting in that one oxymethylphtalimid with aromatic compounds condensed in the presence of sulfuric acid.

Es wurde nun gefunden, dafs an Stelle des Oxymethylphtalimids der Diphtalimid-dimethyläther — welcher schon in den Berichten XXXI (1898) S. 1232 beschrieben ist, und welcher auch aus dem Oxymethyphtalimid bei Einwirkung von concentrirter Schwefelsäure entsteht — verwendet werden kann.It has now been found that instead of oxymethylphthalimide, diphtalimide dimethyl ether - which is already described in Reports XXXI (1898) p. 1232, and which also arises from the oxymethyphthalimide on the action of concentrated sulfuric acid - can be used.

Das Verfahren ist im Wesentlichen dasselbe wie dasjenige des Hauptpatents, wie folgende Beispiele näher erläutern:The procedure is essentially the same as that of the main patent as follows Explain examples in more detail:

Man löst 94 Th. Phenol in einem abgekühlten Gemisch von 650 Th. Schwefelsäure (1,84 spec. Gew.) und 130 Th. Wasser, setzt 168 Th. Diphtalimid-dimethyläther hinzu, rührt energisch, läfst dann einige Zeit stehen, bis die Masse fest geworden und trägt unter Kühlung in Wasser ein. Aus dem abfiltrirten getrockneten Condensationsprodukt gewinnt man durch Auskochen mit Alkohol und Umlösen des Rückstandes aus siedendem Nitrobenzol ein bei 2950 schmelzendes Oxyxylylendiphtalimid: 94 parts of phenol are dissolved in a cooled mixture of 650 parts of sulfuric acid (1.84 spec. Weight) and 130 parts of water, 168 parts of diphtalimide dimethyl ether are added, the mixture is stirred vigorously, and then left to stand for some time The mass has solidified and enters water with cooling. From the filtrate dried Condensationsprodukt is obtained by boiling with alcohol and redissolution of the residue from boiling nitrobenzene at 295 0 melting Oxyxylylendiphtalimid:

CO-CO-

Im Alkohol finden sich zwei Oxybenzylphtalimide There are two oxybenzylphthalimides in alcohol

eines schwerer löslich bei 2050 schmelzend und ein leichter lösliches gegen 1500 schmelzend. a less soluble melting at 205 0 melting and an easy-soluble against 150 0th

Durch Condensation des Diphtalimid - dimethyläthers mit p-Nitrophenol erhält man ein einheitliches Condensationsprodukt, das aus Alkohol und Eisessig krystallisirt bei 233 bis 2340 schmilzt.By the condensation of Diphtalimid - dimethyl ether with p-nitrophenol gives a uniform Condensationsprodukt which crystallizes from alcohol and glacial acetic acid at 233-234 0 melts.

Diphtalimid-dimethyläther mit o-Nitrotoluol condensirt liefert das schon in der Beschreibung des Hauptpatents beschriebene Nitrotolylmethylphtalimid, das bei 155 bis 1560 schmilzt.Diphtalimid dimethyl ether with orthonitrotoluene condensed delivers the Nitrotolylmethylphtalimid already described in the description of the main patent, which melts at 155-156 0th

Claims (1)

Patent-Anspruch :Patent claim: Abänderung des durch Patent 134979 geschützten Verfahrens zur Darstellung von Benzylphtalimidderivaten, darin bestehend, dafs man an Stelle des Oxymethylphtalimids den Diphtalimid-dimethyläther verwendet.Modification of that protected by patent 134979 Process for the preparation of benzylphthalimide derivatives, consisting in that one instead of oxymethylphthalimide, diphtalimide dimethyl ether is used.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519244A1 (en) * 1975-04-30 1976-11-11 Bayer Ag METHOD OF MANUFACTURING ANION EXCHANGERS
US5566803A (en) * 1994-05-13 1996-10-22 Fichtel & Sachs Ag Clutch assembly for a motor vehicle having a flexible clutch disc
US6846241B2 (en) 2002-03-15 2005-01-25 Centa-Antriebe Kirschey Gmbh One-piece coupling disk
AU2014224080B2 (en) * 2007-05-10 2016-02-25 Plastipak Packaging, Inc. Oxygen scavenging molecules, articles containing same, and methods of their use.
US9896554B2 (en) 2009-09-29 2018-02-20 Plastipak Packaging, Inc. Colorant compatible oxygen scavenging polymer compositions and articles made from same
US10040922B2 (en) 2009-11-13 2018-08-07 Plastipak Packaging, Inc. Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions
US10059666B2 (en) 2009-11-13 2018-08-28 Plastipak Packaging, Inc. Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519244A1 (en) * 1975-04-30 1976-11-11 Bayer Ag METHOD OF MANUFACTURING ANION EXCHANGERS
US5566803A (en) * 1994-05-13 1996-10-22 Fichtel & Sachs Ag Clutch assembly for a motor vehicle having a flexible clutch disc
US6846241B2 (en) 2002-03-15 2005-01-25 Centa-Antriebe Kirschey Gmbh One-piece coupling disk
AU2014224080B2 (en) * 2007-05-10 2016-02-25 Plastipak Packaging, Inc. Oxygen scavenging molecules, articles containing same, and methods of their use.
EP2754690B1 (en) * 2007-05-10 2017-12-13 Plastipak Packaging, Inc. Oxygen scavenging molecules, articles containing same, and methods of their use
US10125096B2 (en) 2007-05-10 2018-11-13 Plastipak Packaging, Inc. Oxygen scavenging molecules, articles containing same, and methods of their use
US10906870B2 (en) 2007-05-10 2021-02-02 Plastipak Packaging, Inc. Oxygen scavenging molecules, articles containing same, and methods of their use
US11739059B2 (en) 2007-05-10 2023-08-29 Plastipak Packaging, Inc. Oxygen scavenging molecules, articles containing same, and methods of their use
US9896554B2 (en) 2009-09-29 2018-02-20 Plastipak Packaging, Inc. Colorant compatible oxygen scavenging polymer compositions and articles made from same
US10040922B2 (en) 2009-11-13 2018-08-07 Plastipak Packaging, Inc. Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions
US10059666B2 (en) 2009-11-13 2018-08-28 Plastipak Packaging, Inc. Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions

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