How is mesityl oxide formed from acetone?

  1. Mesityl oxide is a α,β-unsaturated ketone with the formula CH3C(O)CH=C(CH3)2. …
  2. It is prepared by the aldol condensation of acetone to give diacetone alcohol, which readily dehydrates to give this compound.
  3. Phorone and isophorone may be formed under the same conditions. …
  4. Phorone is formed by continued aldol condensation:

What is Iupac name of Mesityloxide?
Chemical Identifiers

CAS 141-79-7
Synonym 3-isohexen-2-one, 3-penten-2-one, 4-methyl, 4-methyl-3-penten-2-one, isobutenyl methyl ketone, isopropylidene acetone, isopropylideneacetone, mesityl oxide, mesityloxid, mesityloxyde, methyl isobutenyl ketoneShow More
PubChem CID 8858
IUPAC Name 4-methylpent-3-en-2-one

Is mesityl oxide genotoxic?

Since mesityl oxide possesses a conventional α, β-unsaturated ketone structural alert, and is often identified as a potential genotoxic impurity in drug substances that have been crystallized from acetone, it is a potential impurity in this solvent. Although, mesityl oxide is reported to be Ames-negative [6]. What is the Iupac name for Cinnamaldehyde?
IUPAC Name. (E)-3-phenylprop-2-enal. Alternative Names. cinnamaldehyde.

What is the Iupac name of crotonaldehyde?


IUPAC name (2E)-but-2-enal
Other names Crotonaldehyde Crotoinic aldehyde β-Methacrolein β-Methyl acrolein 2-butenal Propylene aldehyde
CAS Number 4170-30-3 (E/Z) 123-73-9 (E) 15798-64-8 (Z)

Is Dimedone soluble in water?

C8H12O2 (Mw = 140.17968 g/mol) with the melting point of 147–150 °C (420–423 K), is stable under ambient conditions and soluble in water, as well as ethanol and methanol, and inorganic solvents.

Frequently Asked Questions(FAQ)

What is a ENOL in organic chemistry?

: an organic compound that contains a hydroxyl group bonded to a carbon atom having a double bond and that is usually characterized by the grouping C=C(OH)

What is meant by genotoxic impurities?

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Per the International Council for Harmonization (ICH) S2 (R1) Guideline, genotoxic impurities can be broadly defined as impurities that have been demonstrated to cause deleterious changes in the genetic material regardless of the mechanism.

How do you determine genotoxic impurity limit in API?

The acceptable limits for daily intake of genotoxic impurities are 5, 10, 20, and 60µg/day for a duration of exposure of 6-12 months, 3-6 months, 1-3 months, and less than 1 month, respectively. For a single dose an intake of up to 120 µg is acceptable.

What is TTC limit?

A TTC value of 1.5 µg/day intake of a genotoxic impurity is considered to be associated with an acceptable risk (excess cancer risk of <1 in 100,000 over a lifetime) for most pharmaceuticals. From this threshold value, a permitted level in the active substance can be calculated based on the expected daily dose. What is the chemical name for acetone?

What is the Iupac name of acetophenone?


Preferred IUPAC name 1-Phenylethan-1-one
Other names Acetophenone Phenylethanone Phenylacetone Methyl phenyl ketone
CAS Number 98-86-2

Which reagent is used in cinnamon oil?

Cinnamaldehyde is an organic compound with the formula C6H5CH=CHCHO. … Cinnamaldehyde.

Chemical formula C9H8O
Molar mass 132.16 g/mol
Appearance Yellow oil
Odor Pungent, cinnamon-like

How do you convert crotonaldehyde to acetaldehyde?

Answer: By aldol condensation reaction, acetaldehyde can be converted into crotonaldehyde. Explanation: When two molecules of an aldehyde or a ketone combines to form a – hydroxy aldehyde or -hydroxy ketone, followed by dehydration to give a conjugated alkene. This reaction is carried out in alkaline medium.

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What is meant by crotonaldehyde?

: a pungent liquid aldehyde CH3CH=CHCHO obtained by dehydration of aldol and used chiefly as an intermediate in organic synthesis and as a warning agent in fuel gases; β-methyl-acrolein.

Is mesityl oxide flammable?

* Exposure to Mesityl Oxide causes headache, sleepiness, dizziness, loss of coordination, and convulsions. … * Repeated exposure to Mesityl Oxide may damage the lungs and may cause anemia. * Mesityl Oxide is a HIGHLY FLAMMABLE LIQUID and a DANGEROUS FIRE HAZARD.

How do you make Phorone?

It is now typically obtained by the acid-catalysed twofold aldol condensation of three molecules of acetone. Mesityl oxide is obtained as an intermediate and can be isolated. Crude phorone can be purified by repeated recrystallization from ethanol or ether, in which it is soluble.

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