Product Name

  • Name

    2,6-HEPTANEDIONE

  • EINECS 236-832-8
  • CAS No. 13505-34-5
  • Article Data63
  • CAS DataBase
  • Density 0.926 g/cm3
  • Solubility
  • Melting Point 33.5°C
  • Formula C7H12O2
  • Boiling Point 212.5 °C at 760 mmHg
  • Molecular Weight 128.171
  • Flash Point 76.1 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 13505-34-5 (2,6-HEPTANEDIONE)
  • Hazard Symbols
  • Synonyms 2,6-Heptanedione;
  • PSA 34.14000
  • LogP 1.33470

Synthetic route

tert-butyl 2-acetyl-5-oxohexanoate
35490-06-3

tert-butyl 2-acetyl-5-oxohexanoate

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With trifluoroacetic acid at 20℃; for 0.5h;98%
2-tert-Butylperoxy-1,2-dimethyl-cyclopentanol
109139-09-5

2-tert-Butylperoxy-1,2-dimethyl-cyclopentanol

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
In tetrachloromethane for 10h; Heating;96%
N1,N5-dimethoxy-N1,N5-dimethylglutaramide
259236-21-0

N1,N5-dimethoxy-N1,N5-dimethylglutaramide

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With ethylmagnesium bromide In tetrahydrofuran; diethyl ether at 0 - 20℃; for 2h;96%
With methylmagnesium bromide In tetrahydrofuran; diethyl ether at 20℃; for 4h; Cooling with ice;20.3 g
hepta-1,6-diyne
2396-63-6

hepta-1,6-diyne

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With (cyclohexylisocyanide)gold(I) chloride; water; potassium tetrakis(pentafluorophenyl)borate In methanol at 20℃; for 48h;95%
With AuCl*C33H53OP; C33H53OP*AuCl; water; silver trifluoromethanesulfonate In methanol at 80℃; for 24h;89%
6-Hydroperoxy-6-methoxy-2-heptanone
156644-17-6

6-Hydroperoxy-6-methoxy-2-heptanone

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With triphenylphosphine In dichloromethane for 2h; Ambient temperature;94%
hepta-1,6-diyne
2396-63-6

hepta-1,6-diyne

A

3-methylcyclohexen-2-one
1193-18-6

3-methylcyclohexen-2-one

B

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With silica-supported HgSO4/H2SO4/H2O In dichloromethane at 40℃; for 6h;A 85%
B 7%
heptane-2,2,6,6-tetracarboxylic acid
412033-47-7

heptane-2,2,6,6-tetracarboxylic acid

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
Stage #1: heptane-2,2,6,6-tetracarboxylic acid With ammonia In methanol at 20℃; for 10h; Electrochemical reaction;
Stage #2: With hydrogenchloride In water at 20℃;
85%
Stage #1: heptane-2,2,6,6-tetracarboxylic acid With ammonia In methanol at 20℃;
Stage #2: With hydrogenchloride In water at 20℃;
85%
2,6-diisocyano-2,6-ditosylheptane
97388-60-8

2,6-diisocyano-2,6-ditosylheptane

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With hydrogenchloride In diethyl ether; dichloromethane for 0.25h; Ambient temperature;82%
5-(2-methyl-1,3-dioxolan-2-yl)-2-pentanone
15580-05-9

5-(2-methyl-1,3-dioxolan-2-yl)-2-pentanone

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With perchloric acid In diethyl ether for 1h; Ambient temperature;81.9%
With sulfuric acid
With sulfuric acid
gloutaric dichloride
2873-74-7

gloutaric dichloride

methylmagnesium bromide
75-16-1

methylmagnesium bromide

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
Stage #1: methylmagnesium bromide With tributylphosphine In tetrahydrofuran at 20℃; for 0.333333h;
Stage #2: gloutaric dichloride In tetrahydrofuran at -40℃; for 0.333333h;
75%
1-benzyl-2,6-dicyano-2,6-dimethylpiperidine
98217-32-4

1-benzyl-2,6-dicyano-2,6-dimethylpiperidine

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With copper(II) sulfate In ethanol; water at 50℃; for 18h;74%
1,6-heptadiene
3070-53-9

1,6-heptadiene

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With methanesulfonic acid; molybdovanadophosphate; oxygen; hydroquinone; palladium diacetate; sodium chloride In ethanol at 60℃; for 5h; Wacker-type oxidation;69%
Conditions
ConditionsYield
With carbon dioxide; oxygen; 1-hydroxy-pyrrolidine-2,5-dione; cobalt(II) acetate In acetic acid at 60℃; under 44734.5 Torr; for 6h; Product distribution / selectivity;60%
(E)-6-hydroxy-3-hepten-2-one
1093406-29-1

(E)-6-hydroxy-3-hepten-2-one

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With cis-chloromethyl[bis(dicyclohexylphosphino)ethane]palladium(II); sodium tetrakis[(3,5-di-trifluoromethyl)phenyl]borate; cyclohexene In 1,2-dichloro-ethane at 120℃; for 18h; Inert atmosphere; Schlenk technique; Glovebox; Sealed tube;59%
gloutaric dichloride
2873-74-7

gloutaric dichloride

methyllithium
917-54-4

methyllithium

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
Stage #1: methyllithium With manganese(ll) chloride In tetrahydrofuran at 0 - 20℃; for 1h;
Stage #2: gloutaric dichloride With copper(l) chloride In tetrahydrofuran at 20℃;
52%
1,2-dimethylcyclopentene
765-47-9

1,2-dimethylcyclopentene

A

1,5-dimethyl-6-oxabicyclo[3.1.0]hexane
82461-31-2

1,5-dimethyl-6-oxabicyclo[3.1.0]hexane

B

1,5-dimethyl-6,7,8-trioxa-bicyclo[3.2.1]octane
19987-14-5

1,5-dimethyl-6,7,8-trioxa-bicyclo[3.2.1]octane

C

2,6-heptandione
13505-34-5

2,6-heptandione

D

4-oxopentyl acetate
5185-97-7

4-oxopentyl acetate

E

methyl levulinate
13984-50-4

methyl levulinate

1,2-dimethyl-cyclopentane-1r,2t-diol
33046-20-7

1,2-dimethyl-cyclopentane-1r,2t-diol

Conditions
ConditionsYield
With oxygen; ozone In gas for 0.166667h; Product distribution; Ambient temperature;A 5%
B 0.5%
C 51%
D 2%
E 3%
F 1%
1,2-dimethylcyclopentene
765-47-9

1,2-dimethylcyclopentene

A

1,5-dimethyl-6-oxabicyclo[3.1.0]hexane
82461-31-2

1,5-dimethyl-6-oxabicyclo[3.1.0]hexane

B

2,6-heptandione
13505-34-5

2,6-heptandione

C

4-oxopentanal
626-96-0

4-oxopentanal

D

levulinic acid
123-76-2

levulinic acid

Conditions
ConditionsYield
With oxygen; ozone In gas for 0.166667h; Ambient temperature; Further byproducts given;A 5%
B 51%
C 9%
D 5%
n-pentyl methyl ketone
110-43-0

n-pentyl methyl ketone

A

2,6-heptandione
13505-34-5

2,6-heptandione

B

heptane-2,5-dione
1703-51-1

heptane-2,5-dione

Conditions
ConditionsYield
With sodium periodate; [(η5-pentamethylcyclopentadienyl)Ir(2-phenylpyridine(1-))Cl] In water at 23℃; for 15h; Reagent/catalyst; Inert atmosphere;A 44%
B 18%
With sodium persulfate; iron(II) sulfate In water at 80 - 85℃; for 6h;A 27%
B 23 % Turnov.
With sodium persulfate; iron(II) sulfate In water at 80 - 85℃; for 6h;A 27 % Turnov.
B 23%
With sodium persulfate; iron(II) sulfate In water at 80℃; for 6h; Yield given. Yields of byproduct given;
methylmagnesium bromide
75-16-1

methylmagnesium bromide

N1,N5-dimethoxy-N1,N5-dimethylglutaramide
259236-21-0

N1,N5-dimethoxy-N1,N5-dimethylglutaramide

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
In tetrahydrofuran at 0 - 20℃; for 2.5h;40%
In tetrahydrofuran; diethyl ether at 0 - 25℃; for 4h; Inert atmosphere;22.5 g
5-heptyne-2-one
22592-18-3

5-heptyne-2-one

A

2,6-heptandione
13505-34-5

2,6-heptandione

B

heptane-2,5-dione
1703-51-1

heptane-2,5-dione

Conditions
ConditionsYield
With sodium tetrachloroaurate dihydrate In methanol; water for 50h; Ambient temperature; Irradiation;A 21%
B 27%
With dichloro bis(acetonitrile) palladium(II) In water; acetonitrile for 1.5h; Ambient temperature; Irradiation; Yield given. Yields of byproduct given;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

formaldehyd
50-00-0

formaldehyd

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With methanol In water at 50℃;20%
In water
heptane-2,6-dione dioxime
89941-02-6

heptane-2,6-dione dioxime

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With sulfuric acid; sodium nitrite
With cis-nitrous acid In diethyl ether
1,7-dichloro-heptane-2,6-dione
61390-54-3

1,7-dichloro-heptane-2,6-dione

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With acetic acid; zinc
6-hydroxyheptan-2-one
72693-12-0

6-hydroxyheptan-2-one

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With chromic acid
With potassium dichromate; sulfuric acid
1,2-dimethylcyclopentene
765-47-9

1,2-dimethylcyclopentene

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With tetrachloromethane; ozone bei der Hydrierung des erhaltenen Ozonids an Palladium/Calciumcarbonat in Methanol;
With potassium permanganate; water
Multi-step reaction with 2 steps
1: OsO4 / diethyl ether
2: cobalt(III) acetate / acetic acid / 25 °C / var. temp.; ΔH(excit.), -ΔS(excit.), ΔG(excit.)
View Scheme
1,2-Dimethylcyclopentan-1-ol
19550-45-9

1,2-Dimethylcyclopentan-1-ol

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With toluene-4-sulfonic acid at 125℃; Oxydation des Reaktionsgemisches mit Permanganat;
2-acetyl-5-methylfuran
1193-79-9

2-acetyl-5-methylfuran

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With hydrogen; platinum at 200℃;
cis-1,2-dimethyl-1,2-cyclopentanediol
33046-19-4

cis-1,2-dimethyl-1,2-cyclopentanediol

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With dipotassium peroxodisulfate; silver nitrate
With dipotassium peroxodisulfate at 30℃; Rate constant;
With cobalt(III) acetate In acetic acid at 25℃; Kinetics; Thermodynamic data; Mechanism; var. temp.; ΔH(excit.), -ΔS(excit.), ΔG(excit.);
1,2-dimethyl-cyclopentane-1r,2t-diol
33046-20-7

1,2-dimethyl-cyclopentane-1r,2t-diol

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
With dipotassium peroxodisulfate; silver nitrate
With dipotassium peroxodisulfate at 30℃; Rate constant;
With cobalt(III) acetate In acetic acid at 25℃; Kinetics; Thermodynamic data; Mechanism; var. temp.; ΔH(excit.), ΔS(excit.), ΔG(excit.);
formaldehyd
50-00-0

formaldehyd

ethyl acetoacetate
141-97-9

ethyl acetoacetate

2,6-heptandione
13505-34-5

2,6-heptandione

Conditions
ConditionsYield
(i) aq. NaOH, (ii) /BRN= 1209228/; Multistep reaction;
With sodium hydroxide
2,6-heptandione
13505-34-5

2,6-heptandione

cis-2,6-dimethyltetrahydropyran
73237-48-6

cis-2,6-dimethyltetrahydropyran

Conditions
ConditionsYield
With trimethylsilan; trimethylsilyl trifluoromethanesulfonate In dichloromethane for 4h; 1.) 0 deg C, 4 h; 2.) room temperatures, 2 h;99%
2,6-heptandione
13505-34-5

2,6-heptandione

heptane-2,6-diol
5969-12-0

heptane-2,6-diol

Conditions
ConditionsYield
With sodium hydroxide; sodium tetrahydroborate In methanol; water 1.) 10-15 deg C, 1h, 2.) room temp., overnight;98.8%
Stage #1: 2,6-heptandione With diphenylsilane; bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate; (S,S)-2,2''-bis[(R)-1-(Et2P)ethyl]-1,1''-biferrocene In tetrahydrofuran at -30℃; for 94h; hydrosilylation;
Stage #2: With methanol; potassium carbonate In tetrahydrofuran at 20℃; for 10h; methanolysis;
75%
With sodium tetrahydroborate
2,6-heptandione
13505-34-5

2,6-heptandione

2-(trimethylsilyl)methylallyl iodide
80121-73-9

2-(trimethylsilyl)methylallyl iodide

(1R,5S)-1,5-Dimethyl-3-methylene-9-oxa-bicyclo[3.3.1]nonane
110745-07-8

(1R,5S)-1,5-Dimethyl-3-methylene-9-oxa-bicyclo[3.3.1]nonane

Conditions
ConditionsYield
With stannous fluoride In acetonitrile Ambient temperature;83%
2,6-heptandione
13505-34-5

2,6-heptandione

4,4'-Bis(dimethylamino)benzophenone hydrazone
65111-92-4

4,4'-Bis(dimethylamino)benzophenone hydrazone

C41H52N8

C41H52N8

Conditions
ConditionsYield
With 4 A molecular sieve; acetic acid In dichloromethane for 2h;70%
2H,3H,4H-pyrido[1,2-a]pyrimidine-2,4-dione
22288-66-0

2H,3H,4H-pyrido[1,2-a]pyrimidine-2,4-dione

2,6-heptandione
13505-34-5

2,6-heptandione

1,5-dimethyl-1,5-bis(2,4-dioxo-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-3-ylidene)pentane

1,5-dimethyl-1,5-bis(2,4-dioxo-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-3-ylidene)pentane

Conditions
ConditionsYield
With potassium carbonate In ethanol Reflux;70%
diiodomethane
75-11-6

diiodomethane

2,6-heptandione
13505-34-5

2,6-heptandione

1,7-Diiodo-2,6-dimethyl-heptane-2,6-diol
109240-26-8

1,7-Diiodo-2,6-dimethyl-heptane-2,6-diol

Conditions
ConditionsYield
With samarium In tetrahydrofuran at 0℃; for 0.333333h;68%
With samarium In tetrahydrofuran at 0℃; for 0.333333h;68%
2,6-heptandione
13505-34-5

2,6-heptandione

1,3-bis(trimethylsiloxy)-1-methoxybuta-1,3-diene
74590-73-1

1,3-bis(trimethylsiloxy)-1-methoxybuta-1,3-diene

(1S,5R)-1,5-Dimethyl-3-oxo-9-oxa-bicyclo[3.3.1]nonane-2-carboxylic acid methyl ester
124851-46-3, 124851-48-5, 146430-69-5

(1S,5R)-1,5-Dimethyl-3-oxo-9-oxa-bicyclo[3.3.1]nonane-2-carboxylic acid methyl ester

Conditions
ConditionsYield
With titanium tetrachloride In dichloromethane at -78℃;68%
2H,3H,4H-pyrido[1,2-a]pyrimidine-2,4-dione
22288-66-0

2H,3H,4H-pyrido[1,2-a]pyrimidine-2,4-dione

2,6-heptandione
13505-34-5

2,6-heptandione

4-aceto-3,11-dihydro-2H-1-methylpyrido[2,1-b]quinazoline-11-one
1262236-81-6

4-aceto-3,11-dihydro-2H-1-methylpyrido[2,1-b]quinazoline-11-one

Conditions
ConditionsYield
With potassium carbonate In ethanol Reflux;66%
methanol
67-56-1

methanol

2,6-heptandione
13505-34-5

2,6-heptandione

1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane
60478-96-8

1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane

Conditions
ConditionsYield
With titanium tetrachloride In dichloromethane for 3h; Irradiation;58.3%
2,6-heptandione
13505-34-5

2,6-heptandione

ethylene glycol
107-21-1

ethylene glycol

5-(2-methyl-1,3-dioxolan-2-yl)-2-pentanone
15580-05-9

5-(2-methyl-1,3-dioxolan-2-yl)-2-pentanone

Conditions
ConditionsYield
With pyridine hydrochloride In benzene for 16h; Heating;58%
Benzyloxymethyl chloride
3587-60-8

Benzyloxymethyl chloride

2,6-heptandione
13505-34-5

2,6-heptandione

7-Benzyloxy-6-hydroxy-6-methyl-heptan-2-one
92527-68-9

7-Benzyloxy-6-hydroxy-6-methyl-heptan-2-one

Conditions
ConditionsYield
With samarium diiodide In tetrahydrofuran at 0℃; for 4h;56%
With samarium diiodide In tetrahydrofuran Ambient temperature;56%
acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

2,6-heptandione
13505-34-5

2,6-heptandione

(1R,5S)-1,5-dimethyl-9-azabicyclo[3.3.1]nonan-3-one

(1R,5S)-1,5-dimethyl-9-azabicyclo[3.3.1]nonan-3-one

Conditions
ConditionsYield
With ammonium acetate; acetic acid at 80℃; for 3h; Inert atmosphere;55%
With sodium acetate; ammonium chloride; potassium hydroxide

Heptane-2,6-dione Specification

This chemical is called Heptane-2,6-dione, and its systematic name is 2,6-heptanedione. With the molecular formula of C7H12O2, its molecular weight is 128.17. The CAS registry number of this chemical is 13505-34-5.

Other characteristics of the Heptane-2,6-dione can be summarised as followings: (1)ACD/LogP: -0.01; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.01; (4)ACD/LogD (pH 7.4): -0.01; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 23.63; (8)ACD/KOC (pH 7.4): 23.63; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 34.14 Å2; (13)Index of Refraction: 1.413; (14)Molar Refractivity: 34.53 cm3; (15)Molar Volume: 138.3 cm3; (16)Polarizability: 13.69×10-24cm3; (17)Surface Tension: 28.9 dyne/cm; (18)Density: 0.926 g/cm3; (19)Flash Point: 76.1 °C; (20)Enthalpy of Vaporization: 44.88 kJ/mol; (21)Boiling Point: 212.5 °C at 760 mmHg; (22)Vapour Pressure: 0.173 mmHg at 25°C.

Production method of this chemical: The Heptane-2,6-dione could be obtained by the reactant of 5-(2-methyl-[1,3]dioxolan-2-yl)-pentan-2-one. This reaction needs the reagent of 60 percent aq. HClO4, and the solvent of diethyl ether. The yield is 81.9 %. In addition, this reaction should be taken for 1 hour at ambient temperature.

Uses of this chemical: The Heptane-2,6-dione could react with methanol, and obtain the 1,5-dimethyl-6,8-dioxa-bicyclo[3.2.1]octane. This reaction needs the reagent of TiCl4, and the solvent of CH2Cl2. The yield is 58.3 %. In addition, this reaction should be taken for 3 hours. The other condition is irradiation.

You can still convert the following datas into molecular structure: 
1.SMILES: O=C(C)CCCC(=O)C
2.InChI: InChI=1/C7H12O2/c1-6(8)4-3-5-7(2)9/h3-5H2,1-2H3
3.InChIKey: VAIFYHGFLAPCON-UHFFFAOYAO

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