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CAS No. : | 89-84-9 | MDL No. : | MFCD00002279 |
Formula : | C8H8O3 | Boiling Point : | - |
Linear Structure Formula : | HOC6H3(OH)(C(O)CH3) | InChI Key : | SULYEHHGGXARJS-UHFFFAOYSA-N |
M.W : | 152.15 | Pubchem ID : | 6990 |
Synonyms : |
Resacetophenone;1-?(2,?4-?Dihydroxyphenyl)?ethanone;4-Acetylresorcinol;2,4-Dihydroxyacetophenone
|
Chemical Name : | 2,4-Dihydroxyacetophenone |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | 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 |
---|---|---|
With hydrogenchloride; In toluene; | EXAMPLE 31 304 g of 2,4-dihydroxy-acetophenone and 142 g of pyrrolidine are stirred in 1 l of toluene. 320 g of 1-N-pyrrolidinyl-cyclohexane are then added and the mixture is stirred for 3 hours at 25 and then for a further 3 hours at the reflux temperature. After cooling, 1 kg of ice and 1 l 4 N HCl are stirred into the dark solution. After a short time 2,2-pentamethylene-7-hydroxychroman-4-one precipitates out from the organic phase and is filtered off and rinsed with water. The toluene is separated off from the filtrate and concentrated to about 400 ml, whereupon a further fraction precipitates. Total yield 339 g (73% of the theoretical yield): melting point: 170-171. |