Detail of "26078-25-1"

CAS Number:
26078-25-1
Name:
2H-1-Benzopyran-2-one,7-(ethylamino)-4,6-dimethyl-
Superlist Name:
Coumarin 2
Molecular Structure:
Formula:
C13H15 N O2
Molecular Weight:
217.26
Synonyms:
Coumarin,7-(ethylamino)-4,6-dimethyl- (7CI,8CI); 4,6-Dimethyl-7-(ethylamino)coumarin;7-Ethylamino-4,6-dimethylcoumarin; Coumarin 2; Coumarin 450; NSC 93963
EINECS:
247-446-4
Density:
1.159g/cm³
Melting Point:
168-170 ºC
Boiling Point:
384.4°Cat760mmHg
Flash Point:
186.3°C
Solubility:
SLIGHTLY SOLUBLE
Appearance:
pale yellow crystalline powder
Hazard Symbols:
Risk Codes:
R20/21/22;R36/37/38
Safety:
S26;S37/39 Details

Display：

4,6-Dimethyl-7-ethylaminocoumarin

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Coumarin derivatives: Coumarin derivatives. Patsch, Manfred; Andree, Franz (BASF A.-G., Ger.). Ger. Offen. DE 2659698 13 Jul 1978, 8 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07D311-68. APPLICATION: DE 76-2659698 31 Dec 1976. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Section cross-reference(s): 27 Cyclocondensation of 4,3-R2(RR1N)C6H3OH (R and R1 = HO- or CN-substituted C1-4 alkyl; R2 = H, C1-3 alkyl, Cl, Br) with R3COCH2CO2R4 (R3 = H, C1-4 alkyl,phenyl; R4 = C1-4 alkyl) in the presence of TiCl4 gives coumarins of structure I (R-R3 as defined), useful as fluorescent whiteners. For example, addn. of 0.87 part TiCl4 to a soln. of 4,3-Me(EtNH)C6H3OH [120-37-6] 15 and MeCOCH2CO2Et [141-97-9] 15 in PhCl 200 parts and heating the mixt. 3 h at 120-5° gave I (R = Et, R1 = H, R2 = R3 = Me) [26078-25-1] in 92.5% yield.