Name: TRANS-2-METHYL-2-BUTENAL
SKU: 497-03-0

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Basic Information

CAS No.:

497-03-0

Name:

TRANS-2-METHYL-2-BUTENAL

Article Data:

Molecular Structure:

Formula:

C5H8 O

Molecular Weight:

84.1179

Synonyms:

2-Butenal,2-methyl-, (E)-; Crotonaldehyde, 2-methyl-, (E)- (8CI); Tiglaldehyde (6CI,7CI);(2E)-2-Methyl-2-butenal; (E)-2-Methyl-2-butenal; (E)-2-Methylbut-2-en-1-al; NSC2179; Tiglic aldehyde; trans-2-Methyl-2-butenal; trans-Tiglaldehyde

Density:

0.826g/cm³

Melting Point:

-101.15°C (estimate)

Boiling Point:

117.9°Cat760mmHg

Flash Point:

18.3°C

Solubility:

Soluble in water

Appearance:

clear colorless to yellow liquid

Hazard Symbols:

Risk Codes:

11-36/37/38-10

Safety:

Hazard Codes	F,Xi
Risk Statements	11-36/37/38-10
Safety Statements	16-26-36
RIDADR	UN 1989 3/PG 2
WGK Germany	3
HazardClass	3
PackingGroup	II

PSA:

17.07000

LogP:

1.15150

Synthetic route

: 497-02-9
(E)-2-methyl-2-buten-1-ol

: 497-03-0
2-methylbut-2-enal

Conditions

Conditions	Yield
With dipyridinium dichromate In dichloromethane Inert atmosphere; Molecular sieve;	95%

: 503-17-3
dimethylacetylene

: 201230-82-2
carbon monoxide

: 497-03-0
2-methylbut-2-enal

Conditions

Conditions	Yield
With C34H51NP2; hydrogen; palladium(II) acetylacetonate; toluene-4-sulfonic acid In tetrahydrofuran at 100℃; under 30003 Torr; for 10h; Schlenk technique; Autoclave; Inert atmosphere; stereoselective reaction;	87%
With acetylacetonatodicarbonylrhodium(l); C21H10F12NOP; hydrogen In toluene at 55℃; under 3750.38 Torr; for 20h; stereoselective reaction;	78%

: 80-59-1
Tiglic acid

: 497-03-0
2-methylbut-2-enal

Conditions

Conditions	Yield
With borane-THF In tetrahydrofuran at 0℃; for 2h;	81%
With Bis(N-methylpiperazinyl) aluminum hydride In tetrahydrofuran for 6h; Heating;	72%

: 64197-53-1
2-methyl-3-ethoxybutanal

: 497-03-0
2-methylbut-2-enal

Conditions

Conditions	Yield
With dichloro bis(acetonitrile) palladium(II) In dichloromethane for 36h; Ambient temperature;	80%
With toluene-4-sulfonic acid at 180℃;

: 1838-94-4
isoprene epoxide

A: 1708-31-2
2,5-dihydro-3-methyl-furan

B: 497-03-0
2-methylbut-2-enal

Conditions

Conditions	Yield
tetra-n-heptylammonium iodide; tributyltin iodide In para-xylene at 119℃; for 2h; Heating / reflux;	A 40.8% B 9.2%

: 201230-82-2
carbon monoxide

: 1838-94-4
isoprene epoxide

A: 60920-98-1
5-methyl-3,6-dihydro-pyran-2-one

B: 497-03-0
2-methylbut-2-enal

C: 78-79-5
isoprene

Conditions

Conditions	Yield
With dicobalt octacarbonyl at 85℃; under 150012 Torr;	A 37% B 13% C 19%

...Expand

: 1838-94-4
isoprene epoxide

: 497-03-0
2-methylbut-2-enal

Conditions

Conditions	Yield
HRh(PPh3)4 In benzene at 105℃; for 3h;	35%
rhodium hydrido (PEt3)3 complex In benzene at 105℃; for 3h; sealed tube;	35%

: 7632-16-8
(2S,4S)-carveol

: 2102-58-1
(+)-trans-carveol

A: 497-03-0
2-methylbut-2-enal

B: 107-01-7
butene-2

C: 75-07-0
acetaldehyde

D: 78-79-5
isoprene

Conditions

Conditions	Yield
at 560℃; under 170 Torr;

...Expand

: 75-07-0
acetaldehyde

: 123-38-6
propionaldehyde

: 497-03-0
2-methylbut-2-enal

: 4885-02-3
Dichloromethyl methyl ether

: 86633-14-9, 86633-15-0, 859828-60-7
1-methylprop-1-enyltributyltin

A: 497-03-0
2-methylbut-2-enal

B: 6038-09-1
(Z)-2-methyl-2-butenal

Conditions

Conditions	Yield
With aluminium trichloride In dichloromethane at -78℃; for 4h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

...Expand