76051-89-3

Basic information

• Product Name: 3-methoxy-3a-methyl-3aH-indene
• Synonyms: 3-methoxy-3a-methyl-3aH-indene
• CAS NO: 76051-89-3
• Molecular Weight: 160.216
• Mol File: 76051-89-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-methoxy-3a-methyl-3aH-indene(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methoxy-3a-methyl-3aH-indene(76051-89-3)
• EPA Substance Registry System: 3-methoxy-3a-methyl-3aH-indene(76051-89-3)

Safety Data

• Hazardous Substances Data: 76051-89-3(Hazardous Substances Data)

Upstream product

• 421-20-5 Methyl fluorosulfonate 
• 75950-74-2 5,7a-dihydro-7a-methyl-1H-inden-1-one 

Downstream Products

• 81280-21-9 C₂₁H₁₉NO₃ 
• 81280-24-2 (5aS,5bS,8aS,8bS,8cR)-8b-Methoxy-8c-methyl-7-phenyl-5b,8a,8b,8c-tetrahydro-5aH-7-aza-dicyclopenta[a,cd]indene-6,8-dione 
• 81280-24-2 (5aS,5bR,8aR,8bS,8cR)-8b-Methoxy-8c-methyl-7-phenyl-5b,8a,8b,8c-tetrahydro-5aH-7-aza-dicyclopenta[a,cd]indene-6,8-dione 
• 79644-47-6 7b-methyl-7bH-cyclopentindene 
• 75950-75-3 3-(2'-methylphenyl)-(Z)-propenoic acid methyl ester 
• 75962-65-1 (5aR,8bR,8cS)-8b-Methoxy-8c-methyl-7-phenyl-8b,8c-dihydro-5aH-5b,7,8a-triaza-dicyclopenta[a,cd]indene-6,8-dione 
• 81280-21-9 C₂₁H₁₉NO₃ 
• 81280-21-9 C₂₁H₁₉NO₃ 

Relevant articles and documents

Generation of 3-Methoxy-3a-methyl-3aH-indene and Study of its Cycloaddition Reactions

The title compound (1) has been prepared from indan-1-one by Birch reduction and methylation followed by the introduction of a further double bond, enolisation of the ketone, and O-methylation.The tetraenol ether (1) is the first 3aH-indene derivative to be isolated.It is shown to be oxidised by air to the Z-cinnamic ester (5), and to undergo ready rearrangement to the 1H-indene (7).Cycloadditions of N-phenyltriazolinedione, diethyl azodiformate, and dimethyl acetylenedicarboxylate to the termini of the tetraene are observed.These formal cycloadditions are in contrast to the addition which is observed with N-phenylmaleimide.The adduct rearranges on heating to give a mixture of adducts: it is suggested that this process involves dissociation of the adduct into its components and their re-combination.