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1076-38-6 - 4-Hydroxycoumarin, 98+% - A14394 - Alfa Aesar

A14394 4-Hydroxycoumarin, 98+%

Codice CAS
1076-38-6
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
100g 41,90
500g 146,00
2500g 556,00
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4-Hydroxycoumarin, 98+%

MDL
MFCD00006856
EINECS
214-060-2

Proprietà chimiche

Formula
C9H6O3
Peso formula
162.14
Punto di fusione
ca 213° dec.
Solubilità
Soluble in ethanol and dimethyl formamide. Insoluble in water.

Applicazioni

4-Hydroxycoumarin is involved in annulation reactions, due to the relatively high acidity of the C-H bond at the 3-position: a three-component reaction with isocyanides and dialkyl acetylene dicarboxylates affords annulated 4H-pyrans.

Note

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents and strong bases.

Letteratura

M. R. HADLER.; R. S. SHADBOLT. Novel 4-hydroxycoumarin anticoagulants active against resistant rats. Nature. 1975, 253 275 - 277.

A. M. El-Agrody.; M. S. Abd El-Latif.; N. A. El-Hady.;A. H. Fakery.; A. H. Bedair. Heteroaromatization with 4-Hydroxycoumarin Part II: Synthesis of Some New Pyrano[2,3-d]pyrimidines, [1,2,4]triazolo[1,5-c]pyrimidines and Pyrimido[1,6-b]-[1,2,4]triazine Derivatives. Molecules. 2001, 6 (6), 519-527.

Like 4-Hydroxy-6-methyl-2-pyrone, L11457, can participate in annulation reactions, due to the relatively high acidity of the C-H bond at the 3-position: a three-component reaction with isocyanides and dialkyl acetylene dicarboxylates affords annulated 4H-pyrans: Tetrahedron, 62, 3016 (2006). For reaction scheme, see: tert-Butyl­ isocyanide, L19747.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H315-H319-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Dichiarazioni precauzionali: P260-P201-P280g-P304+P340-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
129768
Codice tariffe armonizzato
2932.20
TSCA
Yes
RTECS
DJ3100000

Raccomandato

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    Eaton's Reagent, P<sub>2</sub>O<sub>5</sub> ca 7.5% w/w
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    Dichloromethane, ACS, 99.5+%, stab. with amylene

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