CAS RN: 26456-05-3 | Product Number: M1787
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|Appearance||Light yellow to Amber to Dark green powder to crystal|
|Purity(with Total Nitrogen)||min. 98.0 %|
|Melting Point||241 °C(dec.)|
|Hazard Statements||H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
H272 : May intensify fire
|Precautionary Statements||P501 : Dispose of contents/ container to an approved waste disposal plant.
P220 : Keep/Store away from clothing/ combustible materials.
P210 : Keep away from heat.
P221 : Take any precaution to avoid mixing with combustibles.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Cyclobutanone (0.5 mmol) and 10-methylacridinium perchlorate (7.4 mg, 0.025 mmol) are dissolved in CH3CN (1 mL). Hydrogen peroxide (68 µL, 30% solution in water, 0.6 mmol) is added and the mixture is irradiated with a 450 W high-pressure mercury lamp in a Pyrex® flask (λ>320 nm) at room temperature for 20 h. The course of the reaction is monitored by TLC. After completion of the reaction, solvent is evaporated in vacuum. Purification of the residue by column chromatography (silica gel, ethyl acetate/petroleum ether gradient) yields the corresponding lactone.
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