182753-51-1

Basic information

• Product Name: 1-Acetyl-3-[1-[2-(3-methyl-but-2-enyloxy)-phenyl]-meth-(E)-ylidene]-1,3-dihydro-indol-2-one
• Synonyms: 1-Acetyl-3-[1-[2-(3-methyl-but-2-enyloxy)-phenyl]-meth-(E)-ylidene]-1,3-dihydro-indol-2-one
• CAS NO: 182753-51-1
• Molecular Weight: 347.414
• Mol File: 182753-51-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-Acetyl-3-[1-[2-(3-methyl-but-2-enyloxy)-phenyl]-meth-(E)-ylidene]-1,3-dihydro-indol-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Acetyl-3-[1-[2-(3-methyl-but-2-enyloxy)-phenyl]-meth-(E)-ylidene]-1,3-dihydro-indol-2-one(182753-51-1)
• EPA Substance Registry System: 1-Acetyl-3-[1-[2-(3-methyl-but-2-enyloxy)-phenyl]-meth-(E)-ylidene]-1,3-dihydro-indol-2-one(182753-51-1)

Safety Data

• Hazardous Substances Data: 182753-51-1(Hazardous Substances Data)

Upstream product

• 21905-78-2 N-acetyloxindole 
• 56074-73-8 2-(3-methyl-2-butenyloxy)benzaldehyde 

Downstream Products

• 182753-55-5 1-Acetyl-3-[1-(2-hydroxy-phenyl)-meth-(E)-ylidene]-1,3-dihydro-indol-2-one 

Relevant articles and documents

Catalysis with inorganic cations. V. Intramolecular Hetero Diels-Alder versus ene reactions: Effect of magnesium perchlorate en chemoselectivity

The competition between Hetero Diels-Alder (HDA) and intramolecular ene reaction (IER) was tested on (E)1-acetyl-3-arylideneindolin-2-one (5). Under thermal conditions HDA products 6a,b are obtained in a quantitative yield stressing the importance of the configuration of the α,β-unsaturated carbonyl system on the reactivity. Both reactivity and chemoselectivity are strongly influenced if the reaction is carried out in the presence of magnesium perchlorate and two IER products 10a,b are identified by nmr and converted into their thermodynamically stable isomers 11a,b by silica gel. The importance of two equivalents of ketone, behaving as ligands in the complex between 5 and Mg(II), is emphasized together with its importance in shifting chemoselectivity in favour of the IER.