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CAS No. : | 20632-12-6 | MDL No. : | MFCD00859367 |
Formula : | C11H12O3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | HRZXLSBBORQKLM-UHFFFAOYSA-N |
M.W : | 192.21 g/mol | Pubchem ID : | 3702569 |
Synonyms : |
|
Num. heavy atoms : | 14 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.36 |
Num. rotatable bonds : | 2 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 52.31 |
TPSA : | 35.53 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.76 cm/s |
Log Po/w (iLOGP) : | 2.34 |
Log Po/w (XLOGP3) : | 1.01 |
Log Po/w (WLOGP) : | 2.05 |
Log Po/w (MLOGP) : | 1.03 |
Log Po/w (SILICOS-IT) : | 2.79 |
Consensus Log Po/w : | 1.84 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -1.85 |
Solubility : | 2.7 mg/ml ; 0.014 mol/l |
Class : | Very soluble |
Log S (Ali) : | -1.35 |
Solubility : | 8.68 mg/ml ; 0.0451 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | -3.17 |
Solubility : | 0.129 mg/ml ; 0.000671 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.16 |
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: |
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* 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 |
---|---|---|
62 g | With zinc(II) oxide; zinc(II) chloride; In dichloromethane; at 0 - 5℃; for 5h; | 136 g of 1 ,4-benzodioxane and 190 g of dichloromethane were charged into a 1 litre reaction flask and the reaction mixture was cooled to 0C under stirring. 41 g of Zinc oxide and 7 g of Zinc chloride were added under stirring. Subsequently, 92.5 g of propionyl chloride was added in 4 hours maintaining the temperature of the reaction medium between 0C and 5C under stirring. The reaction medium was stirred for another 1 hour till the acylation reaction was substantially completed. The reaction mass was subjected to aqueous workup to remove Zinc chloride and propionic acid and the organic layer was separated and distilled to recover 85 g of unreacted 1 ,4-benzodioxane and 62 g of ethyl enedioxybenzene propiophenone with a GC purity of > 99%. The ethyl enedioxybenzene propiophenone was subjected to selective reduction and dehydration as discussed in example 2 to obtain 53 g of 6-propyl-l,4-benzodioxane with a yield of 104% (wt./wt. on 1 ,4-benzodioxane consumed) and purity of > 99% by GC analysis. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | General procedure: Carbonyl substrate, 0.02 mol, was added in portions to a suspension of 0.01 mol NaBH4 in 0.3 mol of the corresponding alcohol solvent, and the mixture was stirred for 2-2.5 h at 20C. The resulting boron derivatives of benzyl alcohols were decomposed with 10% aqueous HCl (3.7 mL), and the mixture was stirred for a required time at a required temperature(see Tables 1-5), cooled, and poured into 200 mL of cold water. The products were extracted with diethylether (2 × 40 mL), the combined extracts were washed with water and dried over anhydrous sodium sulfate, the solvent was distilled off on a rotary evaporator, and the residue was analyzed by 1H NMR. If necessary,benzyl ethers were isolated by chromatography. Alcohol coreactants poorly soluble in water were removed from the diethyl ether extracts by vacuum distillation, and the target ethers ware isolated from the still residue. Ethers 2a [9], 2c [3], 2h, 4a [10], 4b [11], 4i,4l, 7e, 10c, 10d, 10e [4], and 13a [12] were described previously. Ethers 2b, 2d-2g, 2i, 4c-4h, 4j, 4k, 4m-4w, 7a-7d, 7f, 7g, and 13b-13f are mobile liquids, and 7h-7j, 10a, 10b, and 10f-10i are viscous liquids. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | General procedure: Carbonyl substrate, 0.02 mol, was added in portions to a suspension of 0.01 mol NaBH4 in 0.3 mol of the corresponding alcohol solvent, and the mixture was stirred for 2-2.5 h at 20C. The resulting boron derivatives of benzyl alcohols were decomposed with 10% aqueous HCl (3.7 mL), and the mixture was stirred for a required time at a required temperature(see Tables 1-5), cooled, and poured into 200 mL of cold water. The products were extracted with diethylether (2 × 40 mL), the combined extracts were washed with water and dried over anhydrous sodium sulfate, the solvent was distilled off on a rotary evaporator, and the residue was analyzed by 1H NMR. If necessary,benzyl ethers were isolated by chromatography. Alcohol coreactants poorly soluble in water were removed from the diethyl ether extracts by vacuum distillation, and the target ethers ware isolated from the still residue. Ethers 2a [9], 2c [3], 2h, 4a [10], 4b [11], 4i,4l, 7e, 10c, 10d, 10e [4], and 13a [12] were described previously. Ethers 2b, 2d-2g, 2i, 4c-4h, 4j, 4k, 4m-4w, 7a-7d, 7f, 7g, and 13b-13f are mobile liquids, and 7h-7j, 10a, 10b, and 10f-10i are viscous liquids. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydrogen sulfate; hydrogen; In isopropyl alcohol; at 110℃; under 5171.62 Torr;Autoclave; | General procedure: 122 g of 1,3-benzodioxole and 150 g of ethylene dichloride were charged into a 1 litre reaction flask and the mixture was cooled to 0C under stirring followed by the addition of 44.5 g of Zinc oxide under stirring. Subsequently, 92.5 g of propionyl chloride was added to the above mixture in 4 hours while maintaining the temperature of the reaction medium between 0C and 5C under constant stirring. The reaction medium was stirred for another 1 hour until the acylation reaction was substantially completed. The reaction mass was subjected to aqueous workup to remove Zinc chloride and propionic acid, and the organic layer was separated and distilled to recover 64 g of unreacted 1,3-benzodioxole and 71 g of methyl enedioxybenzene propiophenone with a GC purity of > 99%. The methylenedioxybenzene propiophenone was charged into a 1 liter autoclave along with 125 g of isopropyl alcohol, 4 g of Raney Nickel catalyst and 0.1 g of anhydrous sodium hydrogen sulphate. The mixture was maintained at 110C under hydrogen at 100 psi pressure till unreacted methylenedioxybenzene propiophenone was reduced to less than 0.5% by GC analysis. The catalyst was separated, and the crude was distilled to give 61 g of dihydrosafrole with a yield of 105.2% (wt./wt. on 1,3-benzodioxole consumed) and purity of > 99% by GC analysis. |
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