98.0%| A1458164|Formula:C15H12O|Molecular Weight:208.255250000+ products instock " />
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CAS No. : | 614-47-1 | MDL No. : | |
Formula : | C15H12O | Boiling Point : | - |
Linear Structure Formula : | (C6H5)CHCH(COC6H5) | InChI Key : | DQFBYFPFKXHELB-VAWYXSNFSA-N |
M.W : | 208.26 | Pubchem ID : | 637760 |
Synonyms : |
|
Chemical Name : | (E)-1,3-Diphenylprop-2-en-1-one |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
31% | With sodium hydroxide; In ethanol; water; for 6h;Heating / reflux; | A mixture benzylidenacetophenone (38. 6 g, 0.185 mol, 1.1 eq. ) and guanidine hydrochloride (16 g, 0.168 mol, 1 eq. ) were refluxed in ethanol (150 mL). Sodium hydroxide (21.6 g, 0.539 mol, 3.2 eq. ) was dissolved in a minimum amount of water (40mL), and added dropwise to the refluxing mixture. The reaction mixture was then stirred at reflux for a further 6 h. Upon cooling, the reaction mixture was concentrated and then separated between ethyl acetate (200 mL) and water (200 mL). The aqueous layer was then extracted with ethyl acetate (2 x 100 mL). The combined organics were washed with water (200 mL) and brine (200 mL), dried over MgSO¢, and concentrated in vacuo. The crude product was then purified by column chromatography on Si02, eluting with dichloromethane. Recrystallisation from ethyl acetate gave clear colourless crystals yield 31% ; 1H NMR 8 (CDCIs) : 8. 09-8.04 (m, 4H, Ar), 7.54- 7.48 (m, 7H, Ar), 5. 25 (br s, 2H, NH2). |
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