6502-20-1

Basic information

• Product Name: 3-o-cumenyl-2-methylpropionaldehyde
• Synonyms: 3-o-cumenyl-2-methylpropionaldehyde;2-Methyl-3-(2-isopropylphenyl)propionaldehyde;α-Methyl-2-(1-methylethyl)benzenepropanal
• CAS NO: 6502-20-1
• Molecular Formula: C₁₃H₁₈O
• Molecular Weight: 190.28142
• EINECS: 229-383-4
• Mol File: 6502-20-1.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 256.3°C at 760 mmHg
• Flash Point: 108°C
• Appearance: /
• Density: 0.937g/cm³
• Vapor Pressure: 0.0155mmHg at 25°C
• Refractive Index: 1.496
• CAS DataBase Reference: 3-o-cumenyl-2-methylpropionaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 3-o-cumenyl-2-methylpropionaldehyde(6502-20-1)
• EPA Substance Registry System: 3-o-cumenyl-2-methylpropionaldehyde(6502-20-1)

Safety Data

• Hazardous Substances Data: 6502-20-1(Hazardous Substances Data)

Usage

InChI:InChI=1/C13H18O/c1-10(2)13-7-5-4-6-12(13)8-11(3)9-14/h4-7,9-11H,8H2,1-3H3

Upstream product

• 93614-83-6 (E)-3-(4-isopropylphenyl)-2-methylacrylaldehyde 
• 78-85-3 2-methylpropenal 
• 98-82-8 Isopropylbenzene 
• 10476-95-6 methallylidene diacetate 
• 831-97-0 α-methyl-p-isopropylcinnamaldehyde 

Relevant articles and documents

rabbit ear oxaldehyde a method of production

The invention relates to a cyclamen aldehyde production method. The method concretely comprises the following steps: mixing methylacrolein dipropionic acid with isopropyl benzene, slowly adding a titanium tetrachloride and trifluoromethanesulfonic acid mixed solution in a dropwise manner at a low temperature while stirring, reacting, slowly pouring a diluted hydrochloric acid solution into the above obtained reaction solution after completing the reaction, hydrolyzing, taking the obtained organic phase, adding sodium hydroxide and methanol, carrying out a de-esterification reaction, washing by using water after completing the de-esterification reaction, separating the obtained organic layer, and rectifying the above obtained crude product to obtain highly pure cyclamen aldehyde. An innovative titanium tetrachloride and catalytic amount trifluoromethanesulfonic acid double-acid catalysis mode is adopted, the concrete dropwise addition sequence, the reaction time and the temperature are limited, so side reactions are reduced, and the purity of the cyclamen aldehyde is improved; and isopropyl benzene is cheap and easily available, and can be simultaneously used as a solvent and a reactant without adding other solvents, so the method disclosed in the invention has great advantages in cost and three-waste control.

Oxidative coupling of benzenes with α,β-unsaturated aldehydes by the Pd(OAc)2/molybdovanadophosphoric acid/O2 system

The oxidative coupling reaction of benzene with an α,β- unsaturated aldehyde was examined by the combined catalytic system of Pd(OAc)2 with molybdovanadophosphoric acid (HPMoV) under atmospheric dioxygen. Thus, the reaction of benzene with acrolein under dioxygen (1 atm) by the use of catalytic amounts of Pd(OAc)2 and H4PMo 11VO40·26H2O in the presence of dibenzoylmethane as a ligand in propionic acid at 90 °C for 1.5 h afforded cinnamaldehyde in 59% yield and β-phenylcinnamaldehyde in 5% yield. This catalytic system was extended to the direct oxidative coupling through the C-H bond activation of various arenes with acrolein and methacrolein.

SELECTIVE HYDROGENATION OF CITRAL AND p-ISOPROPYL-α-METHYLCINNAMALDEHYDE OVER INDUSTRIAL NICKEL CATALYSTS

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