2-Methylundecanal supplier

Name
2-METHYLUNDECANAL
EINECS 203-765-0
CAS No. 110-41-8
Article Data31
CAS DataBase
Density 0.83 g/mL at 25 °C(lit.)
Solubility 1.3mg/L at 20℃
Melting Point
Formula C12H24 O
Boiling Point 171 °C(lit.)
Molecular Weight 184.322
Flash Point 200 °F
Transport Information
Appearance slightly yellow
Safety Low toxicity by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating fumes.
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms 2-Methyl-1-undecanal;2-Methylundecanal; Aldehyde M.N.A.; Methyl n-nonyl acetaldehyde;Methylnonylacetaldehyde; NSC 46127
PSA 17.07000
LogP 3.96210

Synthetic route

: 68141-17-3
2-methylundecanal dimethyl acetal

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
Stage #1: 2-methylundecanal dimethyl acetal With 2,4,6-trimethyl-pyridine; triethylsilyl trifluoromethyl sulfonate In dichloromethane at 0℃; Stage #2: With water In dichloromethane	100%

: 54125-40-5
2-methyl-1,2-epoxyundecane

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With methylaluminium bis(4-bromo-2,6-di-tert.-butylphenoxide) In dichloromethane at -78℃; for 0.5h;	96%
With methylaluminium bis(4-bromo-2,6-di-tert.-butylphenoxide) In dichloromethane at -78℃; Yield given;

: C13H24O3

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In N,N-dimethyl-formamide at 80℃; for 4h; Temperature;	93%

: 103639-22-1
1-bromo-2-methyl-undecane

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With dimethyl sulfoxide for 0.0569444h; Kornblum oxidation; Microwave irradiation;	92%

: 10522-26-6
2-methyl-1-undecanol

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With pyridinium chlorochromate In dichloromethane for 3h; Ambient temperature;	86%

: 103680-89-3
2-hydroxymethyl-1-undecen

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With chloro(cyclopentadienyl)bis(triphenylphosphinyl) ruthenium(II); triethylammonium hexafluorophosphate In 1,4-dioxane for 3.5h; Heating;	68%
With chloro(cyclopentadienyl)bis(triphenylphosphinyl) ruthenium(II); triethylammonium hexafluorophosphate In 1,4-dioxane at 100℃; for 3.5h;	68%

: 64-18-6
formic acid

: 861567-75-1
1-ethoxy-2-methyl-undecan-2-ol

: 110-41-8
2-methylundecanal

: 83803-54-7
2,3-epoxy-3-methyl-dodecanoic acid ethyl ester

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
Verseifung und Erhitzen;

: 861567-75-1
1-ethoxy-2-methyl-undecan-2-ol

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With formic acid

: 124-11-8
non-1-ene

: 123-38-6
propionaldehyde

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With manganese triacetate In acetic acid
With copper diacetate; air; cobalt(II) acetate In acetic acid at 50℃; for 5h;	51 % Turnov.

: 1117-96-0
Diazoethan

: 112-31-2
caprinaldehyde

A: 1534-27-6
3-dodecanone

B: 110-41-8
2-methylundecanal

C: 161330-44-5
2,3-epoxydodecane

D: 3-methyl-4-tridecanone

Conditions

Conditions	Yield
With bis(2,6-di-tert-butyl-4-methylphenoxide)methylaluminum In dichloromethane at -78℃; for 1h; Yield given. Yields of byproduct given;
In methanol; diethyl ether at 0℃; for 1.5h; Yield given. Further byproducts given. Yields of byproduct given;

...Expand

: 1117-96-0
Diazoethan

: 112-31-2
caprinaldehyde

A: 1534-27-6
3-dodecanone

B: 110-41-8
2-methylundecanal

C: 161330-44-5
2,3-epoxydodecane

D: 3-methyl-4-tridecanone

E: 4-methyl-3-tridecanone

Conditions

Conditions	Yield
With trimethylaluminum In dichloromethane at -78℃; for 1h; Product distribution; other organoaluminum promotor;

...Expand

: 1117-96-0
Diazoethan

: 112-31-2
caprinaldehyde

A: 1534-27-6
3-dodecanone

B: 110-41-8
2-methylundecanal

C: 3-methyl-4-tridecanone

D: 4-methyl-3-tridecanone

Conditions

Conditions	Yield
In methanol; diethyl ether at 0℃; for 1.5h; Yield given. Further byproducts given. Yields of byproduct given;
With trimethylaluminum In dichloromethane at -78℃; for 1h; Yield given. Further byproducts given. Yields of byproduct given;

...Expand

3-methyl-3-nonyl-oxiranecarbonxylic acid ethyl ester: 3-methyl-3-nonyl-oxiranecarbonxylic acid ethyl ester

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
man verseift und spaltet aus der dabei erhaltenen Glycidsaeure Kohlensaeure ab;

: 103680-89-3
2-hydroxymethyl-1-undecen

acid: acid

: 110-41-8
2-methylundecanal

: 112-37-8
undecylenic acid

: 64-19-7
acetic acid

ThO2: ThO2

A: 110-41-8
2-methylundecanal

B: 19781-72-7
heneicosan-11-one

Conditions

Conditions	Yield
at 420 - 425℃;

...Expand

: 821-95-4
1-undecene

: 201230-82-2
carbon monoxide

A: 112-54-9
Dodecanal

B: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With [Rh(μ-S(CH2)10CO2Na)(cod)]2; hydrogen In water at 55℃; under 25858.1 Torr; for 22h; Title compound not separated from byproducts.;

...Expand

: 55955-69-6
2-methylundecanoic acid methyl ester

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 94.6 percent / lithium aluminium hydride / diethyl ether; benzene / 6 h / Heating 2: 86 percent / pyridinium chlorochromate / CH2Cl2 / 3 h / Ambient temperature View Scheme

: 124324-20-5
methyl 2-methylene-5,10-undecadienoate

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 97.5 percent / H2 / Cu/Cr / heptane / 10 h / 240 - 250 °C / 76000.1 Torr 2: 86 percent / pyridinium chlorochromate / CH2Cl2 / 3 h / Ambient temperature View Scheme
Multi-step reaction with 3 steps 1: 97 percent / H2 / Raney nickel / heptane / 5 h / 90 °C / 76000.1 Torr 2: 94.6 percent / lithium aluminium hydride / diethyl ether; benzene / 6 h / Heating 3: 86 percent / pyridinium chlorochromate / CH2Cl2 / 3 h / Ambient temperature View Scheme

: 112-12-9
methyl nonyl ketone

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: Mg; HgCl; diethyl ether 2: formic acid View Scheme

: 930800-81-0
4-methyltridec-1-en-3-ol

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With sodium hydroxide; ozone In water; toluene at -5℃; for 2h;	80 %Chromat.

: 1378479-35-6
(+/-)-2-(undecan-2-yl)imidazolidin-4-one

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
In ethanol; acetonitrile for 1h; pH=4.6; Inert atmosphere; aq. buffer;

: 821-95-4
1-undecene

: 201230-82-2
carbon monoxide

A: 1120-21-4
n-Undecane

B: 112-54-9
Dodecanal

C: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With (acetylacetonato)dicarbonylrhodium (l); hydrogen In tetrahydrofuran; toluene at 120℃; under 15.0015 Torr; for 5h; Catalytic behavior; Inert atmosphere; Schlenk technique;

...Expand

: 22414-68-2
2-methylene-undecanal

: 110-41-8
2-methylundecanal

Conditions

Conditions	Yield
With palladium on activated charcoal; hydrogen at 120℃; under 21002.1 Torr;

: 110-41-8
2-methylundecanal

: 108-59-8
malonic acid dimethyl ester

: dimethyl 2-(2-methylundecylidene)malonate

Conditions

Conditions	Yield
With piperidine; acetic acid In cyclohexane for 22h; Knoevenagel Condensation; Reflux; Dean-Stark;	99%

: 110-41-8
2-methylundecanal

: 1668-10-6
glycinamide hydrochloride

: 1378479-35-6
(+/-)-2-(undecan-2-yl)imidazolidin-4-one

Conditions

Conditions	Yield
With triethylamine In methanol for 18h; Inert atmosphere; Reflux;	94%

: 110-41-8
2-methylundecanal

: 766-77-8
Dimethylphenylsilane

: dimethyl-(2-methyl-undecyloxy)-phenyl-silane

Conditions

Conditions	Yield
With (triphenylphosphine)copper(I) hydride hexamer In toluene at 20℃; for 2h;	92%

: 110-41-8
2-methylundecanal

: 105-56-6
ethyl 2-cyanoacetate

: ethyl 2-cyano-4-methyltridec-2-enoate

Conditions

Conditions	Yield
With piperidine at 20℃; under 75.0075 - 760.014 Torr; for 64h; Knoevenagel Condensation;	92%

: 542-08-5
isopropyl acetoacetate

: 110-41-8
2-methylundecanal

: isopropyl 2-acetyl-4-methyltridec-2-enoate

Conditions

Conditions	Yield
With piperidine at 20℃; for 48h; Knoevenagel Condensation;	89%

: 110-41-8
2-methylundecanal

: 2-chloro-2-methyl-undecan-1-al

Conditions

Conditions	Yield
With pyrrolidine; Trichloromethanesulfonyl chloride; 2,6-di-tert-butyl-pyridine; water In 1,2-dimethoxyethane at 60℃; for 5h;	79%

: 110-41-8
2-methylundecanal

: 1449-46-3
benzyltriphenylphosphonium bromide

: 138695-46-2, 138695-47-3
(3-methyldodec-1-enyl)benzene

Conditions

Conditions	Yield
Stage #1: benzyltriphenylphosphonium bromide With n-butyllithium In tetrahydrofuran; hexane at 0 - 65℃; for 1h; Stage #2: 2-methylundecanal In tetrahydrofuran; hexane at 0 - 65℃; for 18h;	76%

: 67-56-1
methanol

: 110-41-8
2-methylundecanal

: 55955-69-6
2-methylundecanoic acid methyl ester

Conditions

Conditions	Yield
With pyridine; trichloroisocyanuric acid In acetonitrile	75%

: 110-41-8
2-methylundecanal

: 33208-99-0
(S)-alaninamide hydrochloride

: 1378479-37-8
(5S)-5-methyl-2-(undecan-2-yl)imidazolidin-4-one

Conditions

Conditions	Yield
With triethylamine In methanol for 18h; Inert atmosphere; Reflux;	74%

: 110-41-8
2-methylundecanal

: triphenyl-β-p-tolylethylphosphonium bromide

: 1383713-27-6
1-methyl-4-(4-methyltridec-2-enyl)benzene

Conditions

Conditions	Yield
Stage #1: triphenyl-β-p-tolylethylphosphonium bromide With n-butyllithium In tetrahydrofuran; hexane at 0 - 65℃; for 1h; Stage #2: 2-methylundecanal In tetrahydrofuran; hexane at 0 - 65℃; for 16h;	69%

: 2,3,4-tris(hydroxymethyl)-6-methylpyridin-5-ol

: 110-41-8
2-methylundecanal

: 5,6-bis(hydroxymethyl)-8-methyl-2-(undecan-2-yl)-4H-[1,3]dioxino[4,5-c]pyridine

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In benzene for 7h; Dean-Stark; Reflux;	69%

: 13411-42-2
2-(trimethylsilyl)-1,3-dithiane

: 110-41-8
2-methylundecanal

: 1126748-84-2
2-(2-methyl-undecylidene)-1,3-dithiane

Conditions

Conditions	Yield
Stage #1: 2-(trimethylsilyl)-1,3-dithiane With n-butyllithium In tetrahydrofuran at -78 - 0℃; for 5h; Inert atmosphere; Stage #2: 2-methylundecanal In tetrahydrofuran at -78 - 20℃; Inert atmosphere;	65%

: 110-41-8
2-methylundecanal

: 63035-45-0
1-(2-ethyltriphenylphosphine)-4-methoxybenzene iodide

: 1383713-18-5
1-methoxy-4-(4-methyltridec-2-enyl)benzene

Conditions

Conditions	Yield
Stage #1: 1-(2-ethyltriphenylphosphine)-4-methoxybenzene iodide With n-butyllithium In tetrahydrofuran; hexane at 0 - 65℃; for 1h; Stage #2: 2-methylundecanal In tetrahydrofuran; hexane at 0 - 70℃; for 14h;	63%

: 110-41-8
2-methylundecanal

dimethyltitanocene: dimethyltitanocene

: 18435-38-6
3-methyldodec-1-ene

Conditions

Conditions	Yield
In toluene at 60 - 65℃;	62%

: 110-89-4
piperidine

: 110-41-8
2-methylundecanal

: 536-74-3
phenylacetylene

: 1079221-13-8
4-methyl-3-(piperidin-1-yl)-1-phenyltridec-1-yne

Conditions

Conditions	Yield
With CuI-USY zeolite at 80℃; for 15h;	60%

...Expand

: 110-41-8
2-methylundecanal

: 58-56-0
pyridoxal hydrochloride

: 5,6-bis(hydroxymethyl)-8-methyl-2-(undecan-2-yl)-4H-[1,3]dioxino[4,5-c]pyridine

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In benzene for 4h; Reflux; Dean-Stark;	58%

: 110-41-8
2-methylundecanal

biscyclopropyl titanocene: biscyclopropyl titanocene

: (2-Methyl-undecylidene)-cyclopropane

Conditions

Conditions	Yield
In toluene at 50℃;	55%

: 110-41-8
2-methylundecanal

: 24323-25-9
undecanoic acid, 2-methyl

Conditions

Conditions	Yield
Stage #1: 2-methylundecanal With Jones reagent In acetone at -25 - -5℃; for 0.583333h; Stage #2: With sodium hydroxide In water; acetone; toluene for 0.25h; Stage #3: With hydrogenchloride In water; toluene	41%
With potassium permanganate

: 110-41-8
2-methylundecanal

: C24H24Ti

: 138695-46-2, 138695-47-3
(3-methyldodec-1-enyl)benzene

Conditions

Conditions	Yield
In toluene at 45 - 55℃;	20%

: 110-41-8
2-methylundecanal

: (2-(naphthalen-1-yl)ethyl)triphenylphosphonium bromide

: 1383713-34-5
2-(4-methyltridec-2-enyl)naphthalene

Conditions

Conditions	Yield
Stage #1: (2-(naphthalen-1-yl)ethyl)triphenylphosphonium bromide With n-butyllithium In tetrahydrofuran; hexane at 0 - 65℃; for 1h; Stage #2: 2-methylundecanal In tetrahydrofuran; hexane at 0 - 65℃; for 16h;	14%

: 110-41-8
2-methylundecanal

: 58-56-0
pyridoxal hydrochloride

: 5-methyl-3,9-di(undecan-2-yl)-7,11-dihydro-1H-[1,3]dioxepino[5,6-b][1,3]dioxino[5,4-d]pyridine

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In toluene for 4h; Dean-Stark; Reflux;	7%

: 50-00-0
formaldehyd

: 110-41-8
2-methylundecanal

: 2-methyl-2-nonyl-propane-1,3-diol

Conditions

Conditions	Yield
With potassium carbonate

2-Methylundecanal Chemical Properties

IUPAC Name: (2S)-2-Methylundecanal
Molecular Formula: C₁₂H₂₄O
Molecular Weight: 184.36
EINECS: 203-765-0
Density: 0.764 g/cm³
Boiling Point: 192.7 °C at 760 mmHg
Flash Point: 47.1 °C
Freely Rotating Bonds: 3
Polar Surface Area: 0 Å²
Index of Refraction: 1.435
Molar Refractivity: 57.47 cm³
Molar Volume: 220.1 cm³
Polarizability: 22.78 ×10^-24 cm³
Surface Tension: 23.2 dyne/cm
Enthalpy of Vaporization: 41.13 kJ/mol
Vapour Pressure: 0.672 mmHg at 25°C
Appearance: slightly yellow
The Cas Register Number of 2-Methylundecanal is 110-41-8.The chemical synonyms of 2-Methylundecanal (CAS NO.110-41-8) are 2-Methyl-1-undecanal ; Undecanal, 2-methyl- ; 2-Methylhendecanal ; 2-Methylundecanal ; Methyl n-nonyl acetaldehyde ; Methyl n-nonyl acetic aldehyde ; Methyl nonyl acetaldehyde ; Methyl nonyl acetic aldehyde ; Methyl-n-nonylacetaldehyde ; Methylnonylacetaldehyde ; Methylnonylacetic aldehyde .Product categories of 2-Methylundecanal (CAS NO.110-41-8) are Industrial/Fine Chemicals ; Aldehydes ; C₁₀ to C₂₁ ; Carbonyl Compounds ; Alphabetical Listings ; Flavors and Fragrances ; M-N .The molecular structure of 2-Methylundecanal (CAS NO.110-41-8) is.

2-Methylundecanal Uses

It is used as a fragrance component in soaps, detergents, and perfumes.

2-Methylundecanal Production

Georges Darzens recorded the synthesis of 2-methylundecanal in 1904 from methyl nonyl ketone and ethyl chloroacetate.
CH₃(CH₂)₈C(O)CH₃ + ClCH₂CO₂CH₃ → CH₃(CH₂)₈CH(CH₃)OCH(CO₂R) + HCl
CH₃(CH₂)₈CCH₃OCCO₂CH₃ + H₂O → CH₃(CH₂)₈CH(CH₃)CHO + CO₂ + ROH

2-Methylundecanal Toxicity Data With Reference

1.	eye-rbt 500 mg	UCDS** Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 12/13 ,1963.
2.	orl-rat LD50:6690 mg/kg	UCDS** Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 12/13 ,1963.
3.	skn-rbt LD50:14 g/kg	UCDS** Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 12/13 ,1963.

2-Methylundecanal Consensus Reports

Reported in EPA TSCA Inventory.

2-Methylundecanal Safety Profile

Mildly toxic by ingestion and skin contact. An eye irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
WGK Germany: 1
RTECS: YQ1509000

2-Methylundecanal Specification

It smells herbaceous, orange, and ambergris-like. At high dilution it has a flavor similar to honey and nuts.

Product Name

2-METHYLUNDECANAL

Synthetic route

2-Methylundecanal Chemical Properties

2-Methylundecanal Uses

2-Methylundecanal Production

2-Methylundecanal Toxicity Data With Reference

2-Methylundecanal Consensus Reports

2-Methylundecanal Safety Profile

2-Methylundecanal Specification

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