Isobutyraldehyde

• 2- methylpropionaldehyde
• Isobutyraldehyde
• 2- methyl propanal

Colorless liquid with a pungent odor

Liquid

0.79 g · cm -3

-65 ° C

64 ° C.

184 hPa ( 20 ° C)

Moderately in water ( 75 g · l-1 at 20 ° C)

1.374 (20 ° C)

Risk

• 960 mg · kg -1 ( LD50, rat, oral)
• 5670 mg · kg -1 ( LD50, rat / rabbit, transdermal)

-247.3 KJ / mol

Template: Infobox chemical / molecular formula search available

Isobutanal (also: isobutyraldehyde ) is a chemical compound that occurs naturally in honey. It is in the chemical industry, an intermediate in the production of various other chemical compounds.

Production and representation

Isobutanal formed during the thermal decomposition of isobutylidene.

Properties

Isobutanal is an isomer of butanal and belongs to the class of aldehydes. It is a volatile, light sensitive, air sensitive, highly flammable, colorless liquid with a pungent odor, which is moderately soluble in water. It has a dynamic viscosity of 0.5 mPa · s

Use

Isobutanal is a starting material for the production of valine by the Strecker synthesis:

And neopentyl glycol via a Cannizzaro reaction. It can also be used in the Knoevenagel reaction.

Furthermore, it is an intermediate for drugs ( for example, D -penicillamine ) and pesticides.

Biological Significance

Isobutanal comes as a flavoring agent present in honey.

Compounds derived

• Isobutyraldehyde di- (2- ethylhexyl) -acetal