2-Ethylacrolein

ALDRICH/256145 - contains hydroquinone as stabilizer

Synonym: 2-Ethylpropenal; 2-Methylenebutyraldehyde

CAS Number: 922-63-4
Empirical Formula (Hill Notation): C₅H₈O
Molecular Weight: 84.12
EC Number: 213-079-3
MDL Number: MFCD00010129
Linear Formula: CH₂=C(CH₂CH₃)CHO
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-256145-5G	5 g	$144.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

bp	92-93 °C (lit.)
contains	hydroquinone as stabilizer
density	0.859 g/mL at 25 °C (lit.)
form	liquid
functional group	aldehyde
InChI	1S/C5H8O/c1-3-5(2)4-6/h4H,2-3H2,1H3
InChI key	GMLDCZYTIPCVMO-UHFFFAOYSA-N
Quality Level	100
refractive index	n20/D 1.425 (lit.)
SMILES string	CCC(=C)C=O
storage temp.	2-8°C

Application:

2-Ethylacrolein can be used as a promoter to synthesize 2-alkylchroman-4-ones via rhodium-catalyzed annulation reaction of 1,3-dienes with salicylaldehydes or 2-hydroxybenzyl alcohols.
It can also be used as a reactant:
• In the total synthesis of (±)-tabersonine, an indole alkaloid of the Aspidosperma family.
• To prepare 2-ethylbicyclo[2.2.1]hept-5-ene-2-carboxaldehyde via enantioselective Diels-Alder reaction with cyclopentadiene in the presence of chiral Lewis acid catalyst.
• To synthesize diethyl 5-ethyl-2,3-pyridinedicarboxylate by reacting with 2-chloro-3-oxo-succinic acid diethyl ester using ammonium acetate as a catalyst.

Packaging:

5 g in glass bottle

Symbol	GHS02,GHS06
Signal word	Danger
Hazard statements	H225 - H302 + H312 - H330
Precautionary statements	P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310
Hazard Codes	F,Xn
Risk Statements	11-20/21/22
Safety Statements	16-26-28-36/37/39
RIDADR	UN 3384 3(6.1) / PGI
WGK Germany	WGK 3
Flash Point(F)	33.8 °F - closed cup
Flash Point(C)	1 °C - closed cup

bp	92-93 °C (lit.)
Density	0.859 g/mL at 25 °C (lit.)
Refractive Index	n20/D 1.425 (lit.)
Storage Temp.	2-8°C
UNSPSC	12352100

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