7-Diethylamino-4-methylcoumarin Basic Product Information

Product Name	7-Diethylamino-4-methylcoumarin	CAS	91-44-1
Synonyms	Coumarin,7-(diethylamino)-4-methyl- (6CI,7CI,8CI);4-Methyl-7-(diethylamino)coumarin;7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one;7-(Diethylamino)-4-methylcoumarin;Aclarat 8678;Blancol WNS;BlancophorAW;Blancophor FFG;Blankophor SOL;C 47;C 47 (coumarin derivative);C.I.551100;C.I. Fluorescent Brightener 140;C.I. Fluorescent Brightener 52;Calcofluor White RW;Calcofluor White SD;Coumarin 47;DEMC;Fluorescent Brightener 140;Fluorescent Brightener 52;HR 1;UvitexWGS;Whitefluor B;Whitex WS;Hiltamine Arctic White SOL;Leucophor WS;Leukophor WS;NSC61830;Neo-Super HR 1;Rylux VPA-T;Tinopal SWN;	Molecular Formula	C14H17NO2
EINECS Number	202-068-9	Molecular Structure
Appearance	Light Yellow Powder
Purity	AR 98%
Supply Ability

7-Diethylamino-4-methylcoumarin Quality documents

7-Diethylamino-4-methylcoumarin Appearance/Package/Shipping/Storage

package

storage condition

Store in cool & dry place,Keep away from strong light and heat

7-Diethylamino-4-methylcoumarin Application

7-Diethylamino-4-methylcoumarin literature

Preparation method of 4-methyl-7-diethylaminocoumarin and application of preparation method

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Paragraph 0022-0041, (2020/08/26)

The invention belongs to the technical field of coumarin dye synthesis, and particularly relates to a preparation method of 4-methyl-7-diethylaminocoumarin and application of the preparation method. According to the technical schemes, m-hydroxy-N, N-diethylaniline and ethyl acetoacetate are subjected to a reaction, the molar ratio of the m-hydroxy-N, N-diethylaniline to the ethyl acetoacetate is 1: (1.5-2.2), part of the ethyl acetoacetate serves as a solvent, ethyl alcohol and water generated in the reaction are evaporated out while the reaction is conducted, then heat preservation is conducted for a period of time in a high-temperature section, and therefore, the yield is increased; after the reaction is finished, glacial acetic acid and water are added, stirring is performed, and cooling is performed to 0 DEG C; spin-drying is performed, so that a crude product is obtained; and refining is performed with methanol, so that the finished product 4-methyl-7-diethylaminocoumarin is obtained. According to the 4-methyl-7-diethylaminocoumarin prepared by the method, the content of the 4-methyl-7-diethylaminocoumarin can reach 99.5%, the yield of the 4-methyl-7-diethylaminocoumarin is ashigh as 95%, the quality of the product is high; and the defects of low purity and low yield of a traditional preparation method can be overcome. The preparation method is simple. With the preparation method adopted, industrial production is easy to carry out.

Synthesis and fluorescent properties of coumarin-benzimidazole and coumarin–phenanthroimidazole hybrids

Fan, Hongli,Wang, Lingqiang,Wang, Xiaolong

, p. 9 - 13 (2019/11/13)

Two coumarin-benzimidazole hybrids and two coumarin-phenanthroimidazole conjugates were conveniently synthesized and characterized. The UV–vis absorption, emission spectra, absolute quantum yields, and fluorescence lifetimes of these compounds in diluted dichloromethane solutions were measured.

Taking advantage of the aromatisation of 7-diethylamino-4-methyl-3,4-dihydrocoumarin in the fluorescence sensing of superoxide anion

Wang, Yuchen,Han, Jianyi,Xu, Yanzhao,Gao, Yongxin,Wen, Hui,Cui, Huaqing

supporting information, p. 9827 - 9829 (2020/09/09)

The aromatisation of 7-diethylamino-3,4-dihydrocoumarin provides an alternative fluorescent probing technique to selectively detect the concentration of superoxide anion in solution. In addition, we reported the advantage of evaluating O2- sensing probes

Permethylated NHC-Capped α- and β-Cyclodextrins (ICyD^Me) Regioselective and Enantioselective Gold-Catalysis in Pure Water

Zhu, Xiaolei,Xu, Guangcan,Chamoreau, Lise-Marie,Zhang, Yongmin,Mouriès-Mansuy, Virginie,Fensterbank, Louis,Bistri-Aslanoff, Olivia,Roland, Sylvain,Sollogoub, Matthieu

supporting information, p. 15901 - 15909 (2020/10/12)

A series of water-soluble encapsulated copper(I), silver(I) or gold(I) complexes based on NHC-capped permethylated cyclodextrins (ICyD^Me) were developed and used as catalysts in pure water for hydration, lactonization, hydroarylation and cycloisomerization reactions. ICyD^Me ligands gave cavity-based high regioselectivity in hydroarylations, and high enantioselectivities in gold-catalyzed cycloisomerizations reactions giving up to 98 % ee in water. These ICyD^Me are therefore useful ligands for selective catalysis in pure water.

7-Diethylamino-4-methylcoumarin Upstream and downstream

91-44-1 Upstream product

• 141-97-9

  ethyl acetoacetate 

• 91-68-9

  3-diethylaminophenol 

• 110-00-9

  furan 

• 107995-74-4

  7-(diethylamino)-3-iodo-4-methyl-2H-chromen-2-one 

• 188290-36-0

  thiophene 

• 288-05-1

  selenophene 

• 110-86-1

  pyridine 

• 288-32-4

  1H-imidazole 

91-44-1 Downstream Products

• 36840-73-0

  7-diethylamino-4-methyl-3-(4-nitro-phenyl)-chromen-2-one 

• 29197-96-4

  3-phenyl-4-methyl-7-diethylamino-2H-benzopyran-2-one 

• 29639-42-7

  3-(4-chloro-phenyl)-7-diethylamino-4-methyl-chromen-2-one 

• 29197-97-5

  7-(diethylamino)-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one 

• 63977-62-8

  diethyl-methyl-(4-methyl-2-oxo-2H-chromen-7-yl)-ammonium; iodide 

• 123413-36-5

  N-phenylimide of 2-oxo-4,8-dimethyl-7-ethyl-7,8,9,10-tetrahydro-2H-pyrano<3,2-h>quinoline-9,c-10-dicarboxylic acid 

• 121262-31-5

  1-endo-phenyl-8b-methyl-6-amino-1,2-dihydrocyclobutobenzopyran-3-one 

• 121262-32-6

  1-endo-phenyl-8b-methyl-6-diethylamino-1,2-dihydrocyclobutobenzopyran-3-one 

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