• Name

  1,1,6-Trimethyl-1,2-dihydronaphthalene

• EINECS 250-150-8
• CAS No. 30364-38-6
• Article Data9
• CAS DataBase
• Density 0.935 g/cm³
• Solubility
• Melting Point
• Formula C₁₃H₁₆
• Boiling Point 242.2 °C at 760 mmHg
• Molecular Weight 172.27
• Flash Point 94.8 °C
• Transport Information
• Appearance
• Safety
• Risk Codes
• Molecular Structure
• Hazard Symbols
• Synonyms Naphthalene,1,2-dihydro-1,1,6-trimethyl-;1,2-Dihydro-1,1,6-trimethylnaphthalene;Dehydro-ar-ionene;
• PSA 0.00000
• LogP 3.68950

Synthetic route

475-03-6

1,2,3,4-tetrahydro-1,1,6-trimethylnaphthalene

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
With tetrachloromethane; N-Bromosuccinimide; dibenzoyl peroxide
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane
With N-Bromosuccinimide; N,N-diethylaniline; dibenzoyl peroxide

79-77-6

(E)-β-ionone

A

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

B

58720-40-4

4-(2,3,6-trimethyl-phenyl)-butan-2-one

Conditions

Conditions	Yield
With tetrachloromethane; N-Bromosuccinimide Erhitzen des Reaktionsprodukts mit ueberschuessigem N.N-Diaethyl-anilin auf Temperaturen oberhalb 100grad;

36340-49-5

5,6-epoxy-trans-β-ionone

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
With formic acid

127-41-3, 6901-97-9, 14398-36-8, 24190-29-2, 30685-95-1, 31798-12-6, 52340-45-1, 67529-94-6, 67529-95-7

alpha-ionone

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
With N-Bromosuccinimide; Perbenzoic acid; N,N-diethylaniline 1.) CCl4, 70 deg C, 15 min, 2.) 120 deg C; Yield given. Multistep reaction;

1.1.3-trimethyl-2-<3-oxo-buten-(1)-yl>-cyclohexene-(2)

1.1.3-trimethyl-2-<3-oxo-buten-(1)-yl>-cyclohexene-(2)

A

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

B

1.2.4-trimethyl-3-<3-oxo-butyl>-benzene

1.2.4-trimethyl-3-<3-oxo-butyl>-benzene

Conditions

Conditions	Yield
With tetrachloromethane; N-Bromosuccinimide Kochen des Reaktionsprodukts mit N.N-Diaethyl-anilin;

56-23-5

tetrachloromethane

128-08-5

N-Bromosuccinimide

79-77-6

(E)-β-ionone

A

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

B

1-<2.3.6-trimethyl-phenyl>-butanone-(3)

1-<2.3.6-trimethyl-phenyl>-butanone-(3)

Conditions

Conditions	Yield
Erhitzen des Reaktionsprodukts mit ueberschuessigem N.N-Diaethyl-anilin auf Temperaturen bei >100grad;

...Expand

56-23-5

tetrachloromethane

128-08-5

N-Bromosuccinimide

127-41-3, 6901-97-9, 14398-36-8, 24190-29-2, 30685-95-1, 31798-12-6, 52340-45-1, 67529-94-6, 67529-95-7

alpha-ionone

A

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

B

1-<2.3.6-trimethyl-phenyl>-butanone-(3)

1-<2.3.6-trimethyl-phenyl>-butanone-(3)

Conditions

Conditions	Yield
Erhitzen des Reaktionsprodukts mit ueberschuessigem N.N-Diaethyl-anilin auf Temperaturen oberhalb 100grad;

...Expand

24190-29-2

(R)-α-ionone

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: iodine 2: N-Bromosuccinimide; N,N-diethylaniline; dibenzoyl peroxide View Scheme

108-88-3

toluene

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions

Yield

Multi-step reaction with 6 steps 1: aluminum (III) chloride / Milling 2: hydrogenchloride / water / 4 h / 20 °C 3: trimethylsilyl trifluoromethanesulfonate / dichloromethane; hexane / 15 h / 0 - 20 °C / Inert atmosphere 4: trifluoroacetic acid; trifluoroacetic anhydride / 4 h / 0 - 20 °C 5: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.5 h / 20 °C 6: calcium chloride; toluene-4-sulfonic acid / cyclohexane / 2 h / 50 °C View Scheme

4619-20-9

3-(4-methylbenzoyl)propionic acid

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions

Yield

Multi-step reaction with 5 steps 1: hydrogenchloride / water / 4 h / 20 °C 2: trimethylsilyl trifluoromethanesulfonate / dichloromethane; hexane / 15 h / 0 - 20 °C / Inert atmosphere 3: trifluoroacetic acid; trifluoroacetic anhydride / 4 h / 0 - 20 °C 4: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.5 h / 20 °C 5: calcium chloride; toluene-4-sulfonic acid / cyclohexane / 2 h / 50 °C View Scheme

6942-61-6

ethyl 4-oxo-4-(p-tolyl)butanoate

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
Multi-step reaction with 4 steps 1: trimethylsilyl trifluoromethanesulfonate / dichloromethane; hexane / 15 h / 0 - 20 °C / Inert atmosphere 2: trifluoroacetic acid; trifluoroacetic anhydride / 4 h / 0 - 20 °C 3: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.5 h / 20 °C 4: calcium chloride; toluene-4-sulfonic acid / cyclohexane / 2 h / 50 °C View Scheme

40663-79-4

4-methyl-4-p-tolyl-valeric acid

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: trifluoroacetic acid; trifluoroacetic anhydride / 4 h / 0 - 20 °C 2: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.5 h / 20 °C 3: calcium chloride; toluene-4-sulfonic acid / cyclohexane / 2 h / 50 °C View Scheme

70358-65-5

4,4,7-trimethyl-3,4-dihydronaphthalen-1(2H)-one

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.5 h / 20 °C 2: calcium chloride; toluene-4-sulfonic acid / cyclohexane / 2 h / 50 °C View Scheme

C13H18O

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

Conditions

Conditions	Yield
With toluene-4-sulfonic acid; calcium chloride In cyclohexane at 50℃; for 2h;

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

70358-65-5

4,4,7-trimethyl-3,4-dihydronaphthalen-1(2H)-one

Conditions

Conditions	Yield
With hydrogenchloride Erwaermen des Reaktionsprodukts mit CrO3 in wss. Essigsaeure;

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

855641-95-1

4-(2-carboxy-1,1-dimethyl-ethyl)-isophthalic acid

Conditions

Conditions	Yield
With sodium hydroxide; potassium permanganate

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

KMnO4

KMnO4

aqueous alkaline solution

aqueous alkaline solution

855641-95-1

4-(2-carboxy-1,1-dimethyl-ethyl)-isophthalic acid

...Expand

30364-38-6

1,2-dihydro-1,1,6-trimethyl-naphthalene

5,5-dimethyl-1,3-dioxo-1,3,4,5-tetrahydro-benz[c]oxepin-8-carboxylic acid

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: aq. NaOH solution; potassium permanganate 2: Sublimation im Hochvakuum View Scheme

1,1,6-Trimethyl-1,2-dihydronaphthalene Chemical Properties

1,1,6-Trimethyl-1,2-dihydronaphthalene Specification