826-56-2

Basic information

• Product Name: 4A-METHYL-4,4A,5,6,7,8-HEXAHYDRO-3H-NAPHTHALEN-2-ONE
• Synonyms: 4A-METHYL-4,4A,5,6,7,8-HEXAHYDRO-3H-NAPHTHALEN-2-ONE
• CAS NO: 826-56-2
• Molecular Formula: C₁₁H₁₆O
• Molecular Weight: 164.24414
• Mol File: 826-56-2.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 279.7°Cat760mmHg
• Flash Point: 108.4°C
• Appearance: /
• Density: 1g/cm³
• Vapor Pressure: 0.00396mmHg at 25°C
• Refractive Index: 1.507
• CAS DataBase Reference: 4A-METHYL-4,4A,5,6,7,8-HEXAHYDRO-3H-NAPHTHALEN-2-ONE(CAS DataBase Reference)
• NIST Chemistry Reference: 4A-METHYL-4,4A,5,6,7,8-HEXAHYDRO-3H-NAPHTHALEN-2-ONE(826-56-2)
• EPA Substance Registry System: 4A-METHYL-4,4A,5,6,7,8-HEXAHYDRO-3H-NAPHTHALEN-2-ONE(826-56-2)

Safety Data

• Hazardous Substances Data: 826-56-2(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Journal of the American Chemical Society, 87, p. 275, 1965 DOI: 10.1021/ja01080a025

InChI:InChI=1/C11H16O/c1-11-6-3-2-4-9(11)8-10(12)5-7-11/h8H,2-7H2,1H3

Upstream product

• 33993-53-2 N,S-dimethyl-S-phenylsulfoximine 
• 19700-21-1 (-)-geosmin 

Downstream Products

• 2547-26-4 9-methyl-cis-decaline 
• 2547-27-5 trans-9-methyldecalin 
• 5523-99-9 cis-9,10-dimethyl-2-decalone 
• 26450-70-4 10-Methyl-1-<3-oxo-3-phenyl-propyl>-Δ¹⁽⁹⁾-octalon-2 
• 114678-83-0 (2'E)-4,4a,5,6,7,8-hexahydro-4a-methyl-2'-<3'-(phenylsulfinyl)prop-2'-enyl>-2(3H)-naphthalenol 
• 826-56-2 (+)-6-methylbicyclo<4.4.0>dec-1-en-3-one 
• 826-56-2 (-)-4a-methyl-4,4a,5,6,7,8-hexahydro-2(3H)-naphthalenone 
• 78998-63-7 (4-Methoxy-phenyl)-((4aR,8aS)-8a-methyl-3-oxo-octahydro-naphthalen-4a-yl)-acetonitrile 
• 78998-65-9 (S)-((4aR,8aS)-8a-Methyl-3-oxo-octahydro-naphthalen-4a-yl)-phenyl-acetonitrile 
• 123966-88-1 2,10-dimethyl-1⁽⁹⁾-octal-2-ol 
• 54109-46-5 ((4aS,8aR)-4a,8a-Dimethyl-3,4,4a,5,6,7,8,8a-octahydro-naphthalen-2-yloxy)-trimethyl-silane 
• 72938-40-0 2-Acetoxy-4aβ-methyl-3,4,4a,5,6,7-hexahydronaphthalene 
• 938-07-8 trans-10-methyldecal-2-one 
• 938-06-7 (+-)-4a-methyl-cis-octahydro-naphthalen-2-one 

Relevant articles and documents

Photocatalytic degradation of water taste and odour compounds in the presence of polyoxometalates and TiO2: Intermediates and degradation pathways

Geosmin (GSM) and 2-methylisoborneol (MIB) are produced by several species of cyanobacteria and actinomycetes. These compounds can taint water and fish causing undesirable taste and odours. Studies have shown that GSM/MIB are resistant in standard water treatments. Polyoxometalates (POM) are efficient photocatalysts in the degradation and mineralization of a great variety of organic pollutants, presenting similar behaviour with the widely published titanium dioxide (TiO2). Photocatalytic degradation of GSM and MIB under UV-A light in the presence of a characteristic POM photocatalyst, SiW 12O404-, in aqueous solution has been studied and compared with the photodegradation by TiO2 suspensions. GSM and MIB are effectively degraded in the presence of both photocatalysts. Addition of OH radical scavengers (KBr and tertiary butyl alcohol, TBA) retards the photodegradation rates of both compounds, suggesting that photodegradation mechanism takes place via OH radicals. Intermediates identified using GC-MS in the case of GSM and MIB, are mainly identical in the presence of both photocatalysts, also suggesting a common reaction mechanism. Possible photocatalytic degradation pathway for both GSM and MIB is proposed.

N,S-DIMETHYL-S-PHENYLSULFOXIMINE. A REAGENT FOR THE OPTICAL RESOLUTION OF KETONES

The addition of the α-lithio derivative of (+)- or (-)-N,S-dimethyl-S-phenylsulfoximine to selected dl-ketones was carried out at -78 deg C in tetrahydrofuran followed by acid quench at that temperature to produce mixtures of diastereomeric β-hydroxysulfoximines.The optically-active diastereomers were chromatographically separated on silica gel.The purified diastereomers were thermolyzed at ca. 130 deg to produce optically-active ketones and the optically-active sulfoximine which could be recycled.