Welcome to LookChem.com Sign In|Join Free
  • or
Home > Products >  > 

Watermelon Ketone

Related Products

Hot Products

Name

Watermelon Ketone

EINECS 249-320-4
CAS No. 28940-11-6 Density 1.196 g/cm3
PSA 35.53000 LogP 1.33530
Solubility 13.7g/L at 20℃ Melting Point 37.0 to 41.0 °C
Formula C10H10O3 Boiling Point 305.2 °C at 760 mmHg
Molecular Weight 178.188 Flash Point 129.3 °C
Transport Information N/A Appearance white crystalline powder
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 28940-11-6 (Watermelon Ketone) Hazard Symbols N/A
Synonyms

7-Methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one;2H-1,5-benzodioxepin-3(4H)-one, 7-methyl-;7-Methyl-2H-1,5-benzodioxepin-3(4H)-one;

Article Data 9

Watermelon Ketone Synthetic route

1323441-46-8

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxolane]

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sulfuric acid In acetone for 6h; Reagent/catalyst; Solvent; Reflux;95%

7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-one oxime

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium nitrite In water; acetonitrile at 40℃; for 10h;94%
944558-65-0

(±)-7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-ol

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With potassium hydroxide; potassium permanganate for 2.5h;87%
Reaxys ID: 11944038

Reaxys ID: 11944038

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium carbonate; potassium iodide In acetone for 4h; Heating / reflux;84.45%
534-07-6

1,3-Dichloroacetone

452-86-8

4-methyl-1,2-dihydroxybenzene

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium carbonate; potassium iodide In butanone for 4.16667h; Heating / reflux;76.24%
With sodium carbonate; potassium iodide In cyclohexanone for 4.41667h; Heating / reflux;75.25%
With sodium carbonate; potassium iodide In acetone for 12h; Heating / reflux;59.91%
816-39-7

1,3-dibromoroacetone

452-86-8

4-methyl-1,2-dihydroxybenzene

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium carbonate; potassium iodide In acetone for 12h; Heating / reflux;69.95%
52589-39-6

2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
Stage #1: 2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.5h; Dieckmann cyclisation;
Stage #2: With hydrogenchloride In ethanol; water for 0.0666667h; microwave irradiation;
Stage #1: 2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.5h;
Stage #2: With hydrogenchloride In ethanol at 90℃; for 2h; Further stages.;
0.59 g
Stage #1: 2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.5h; Dieckmann Condensation; Inert atmosphere;
Stage #2: With hydrogenchloride In ethanol; water at 120℃; for 8h;
944558-64-9

3,4-dihydro-7-methyl-3-[(tetrahydro-2H-pyran-2-yl)oxy]-2H-1,5-benzodioxepine

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 76 percent / vanadium pentoxide; aq. H2O2 / acetonitrile / 70 °C
2: 87 percent / aq. KOH; KMnO4 / 2.5 h
View Scheme
452-86-8

4-methyl-1,2-dihydroxybenzene

28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 83 percent / K2CO3 / dimethylformamide / 0.07 h / microwave irradiation
2.1: tBuOK / tetrahydrofuran / 0.5 h / 70 °C
2.2: 0.59 g / aq. HCl / ethanol / 2 h / 90 °C
View Scheme
Multi-step reaction with 2 steps
1: potassium hydroxide; ammonium iodide / acetone; ethanol / 4 h / Reflux
2: sulfuric acid / acetone / 6 h / Reflux
View Scheme
Multi-step reaction with 2 steps
1: potassium hydroxide; potassium iodide / ethanol; water / 4 h / Reflux
2: sulfuric acid / acetone / 6 h / Reflux
View Scheme
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-one oxime

Conditions
ConditionsYield
With hydroxylamine hydrochloride; sodium acetate In water; acetonitrile at 50℃; for 24h;94%
With hydroxylamine hydrochloride; sodium acetate In water; acetonitrile at 50℃; for 24h;90%
With hydroxylamine hydrochloride

Watermelon Ketone Chemical Properties

1.Introduction of Watermelon Ketone

Watermelon Ketone,with the CAS NO 28940-11-6, is a kind of white powder or crystal.It have Synonyms of 7-Methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one;2H-1,5-benzodioxepin-3(4H)-one, 7-methyl- and 7-Methyl-2H-1,5-benzodioxepin-3(4H)-one. Watermelon Ketone can be used as flavor ,fragrance and perfume.

2.Properties of Watermelon Ketone

(1) ACD/LogP: 2.747 (2)ACD/LogD (pH 5.5): 2.75 (3) ACD/LogD (pH 7.4): 2.75
(4)ACD/BCF (pH 5.5): 72.11 (5)ACD/BCF (pH 7.4): 72.11 (6)ACD/KOC (pH 5.5): 744.00 (7)ACD/KOC (pH 7.4): 744.00 (8)#H bond acceptors: 3 (9) Polar Surface Area: 35.53 ?2
(10)Index of Refraction: 1.538 (11)Molar Refractivity: 46.593 cm3
(12) Molar Volume: 148.86 cm3 (13)Polarizability: 18.471 10-24cm3
(14)Surface Tension: 40.9850006103516 dyne/cm (15)Density: 1.197 g/cm3
(16) Flash Point: 129.323 °C (17) Enthalpy of Vaporization: 54.568 kJ/mol
(18) Boiling Point: 305.248 °C at 760 mmHg (19)Vapour Pressure: 0.00100000004749745 mmHg at 25°C


3.Structure descriptor of Watermelon Ketone


SMILES:
O=C1COc2c(OC1)cc(cc2)CCopied
Std. InChI:
InChI=1S/C10H10O3/c1-7-2-3-9-10(4-7)13-6-8(11)5-12-9/h2-4H,5-6H2,1H3Copied
Std. InChIKey:
SWUIQEBPZIHZQS-UHFFFAOYSA-N

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 28940-11-6