ChemicalBook CAS DataBase List 2-aMino-3′,6′-bis(ethylaMino)-2′,7′-diMethylspiro〔isoindoline-1,9′-xanthen〕-3-one

2-aMino-3′,6′-bis(ethylaMino)-2′,7′-diMethylspiro〔isoindoline-1,9′-xanthen〕-3-one synthesis

2synthesis methods

Product Name:2-aMino-3′,6′-bis(ethylaMino)-2′,7′-diMethylspiro〔isoindoline-1,9′-xanthen〕-3-one
CAS Number:932013-08-6
Molecular formula:C26H28N4O2
Molecular Weight:428.53

3',6'-bis(ethylamino)-2',7'-dimethylspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one

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2-aMino-3′,6′-bis(ethylaMino)-2′,7′-diMethylspiro〔isoindoline-1,9′-xanthen〕-3-one

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Yield:-

Reaction Conditions:

with hydrazine hydrate at 75; for 6 h;

Steps:

1-4 Example 4

Weigh 4.79g (10mmol) rhodamine 6G and 5.01g (80mmol) 80% hydrazine hydrate dissolved in 20.73g (450mmol) methanol, the above mixture was reacted at 75°C under constant temperature stirring for 6h, after the end of the reaction, cooled to room temperature, poured The solid was precipitated out in stirred distilled water. After stirring for 1 hour, it was filtered with suction and the filter cake was washed three times with a mixture of methanol and distilled water (1:2). The resulting filter cake was dried in a vacuum drying oven at 45°C for 6 hours to obtain compound 2

References:

CN112480137,2021,A Location in patent:Paragraph 0009; 0027; 0028; 0031; 0032; 0035-0036; 0039-0040

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References