190974-78-8

Basic information

• Product Name: 4-(2,4-DIMETHYLPHENYL)-1-BUTENE
• Synonyms: 4-(2,4-DIMETHYLPHENYL)-1-BUTENE;1-But-3-enyl-2,4-dimethylbenzene
• CAS NO: 190974-78-8
• Molecular Formula: C12H16
• Molecular Weight: 160.26
• Mol File: 190974-78-8.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 225°C at 760 mmHg
• Flash Point: 83.5°C
• Appearance: /
• Density: 0.876g/cm³
• Vapor Pressure: 0.133mmHg at 25°C
• Refractive Index: 1.507
• CAS DataBase Reference: 4-(2,4-DIMETHYLPHENYL)-1-BUTENE(CAS DataBase Reference)
• NIST Chemistry Reference: 4-(2,4-DIMETHYLPHENYL)-1-BUTENE(190974-78-8)
• EPA Substance Registry System: 4-(2,4-DIMETHYLPHENYL)-1-BUTENE(190974-78-8)

Safety Data

• Hazardous Substances Data: 190974-78-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C12H16/c1-4-5-6-12-8-7-10(2)9-11(12)3/h4,7-9H,1,5-6H2,2-3H3

Upstream product

• 15764-16-6 2,4-dimethylbenzaldehyde 
• 591-87-7 Allyl acetate 
• 824-55-5 2,4-dimethyl-benzyl chloride 
• 1730-25-2 allylmagnesium bromide 

Relevant articles and documents

Umpolung of Carbonyl Groups as Alkyl Organometallic Reagent Surrogates for Palladium-Catalyzed Allylic Alkylation

Palladium-catalyzed allylic alkylation of nonstabilized carbon nucleophiles is difficult and remains a major challenge. Reported here is a highly chemo- and regioselective direct palladium-catalyzed C-allylation of hydrazones, generated from carbonyls, as a source of umpolung unstabilized alkyl carbanions and surrogates of alkyl organometallic reagents. Contrary to classical allylation techniques, this umpolung reaction utilizes hydrazones prepared not only from aryl aldehydes but also from alkyl aldehydes and ketones as renewable feedstocks. This strategy complements the palladium-catalyzed coupling of unstabilized nucleophiles with allylic electrophiles by providing an efficient and selective catalytic alternative to the traditional use of highly reactive alkyl organometallic reagents.