21889-89-4

Basic information

• Product Name: 6-methyl-7-oxabicyclo[4.1.0]heptan-2-one
• Synonyms: 6-methyl-7-oxabicyclo[4.1.0]heptan-2-one;2,3-EPOXY-3-METHYL-1-CYCLOHEXANONE;2,3-Epoxy-3-methylcyclohexane-1-one;3-Methyl-2,3-epoxycyclohexane-1-one
• CAS NO: 21889-89-4
• Molecular Formula: C₇H₁₀O₂
• Molecular Weight: 126.1531
• EINECS: 244-637-4
• Mol File: 21889-89-4.mol
• Article Data: 29

Chemical Properties

• Boiling Point: 196.3°Cat760mmHg
• Flash Point: 79°C
• Appearance: /
• Density: 1.173g/cm³
• Vapor Pressure: 0.401mmHg at 25°C
• Refractive Index: 1.508
• CAS DataBase Reference: 6-methyl-7-oxabicyclo[4.1.0]heptan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 6-methyl-7-oxabicyclo[4.1.0]heptan-2-one(21889-89-4)
• EPA Substance Registry System: 6-methyl-7-oxabicyclo[4.1.0]heptan-2-one(21889-89-4)

Safety Data

• Hazardous Substances Data: 21889-89-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C7H10O2/c1-7-4-2-3-5(8)6(7)9-7/h6H,2-4H2,1H3

Upstream product

• 1193-18-6 3-methylcyclohexen-2-one 
• 229638-71-5 5-methyl-bicyclo[3.1.0]hexan-1-ol 
• 21378-21-2 3-methylcyclohex-2-en-1-ol 

Downstream Products

• 71808-89-4 2-Thiocyanato-3-methyl-2-cyclohexenon 
• 928-39-2 hept-6-yn-2-one 
• 23758-27-2 1-methylcyclohex-2-en-1-ol 
• 43042-60-0 2-methoxy-3-methyl-cyclohex-2-enone 
• 6286-53-9 6-phenyl-3-methylcyclohex-2-en-1-one 
• 1122-20-9 2,3-dimethylcyclohex-2-en-1-one 
• 15329-10-9 3,6-dimethylcyclohex-2-enone 
• 65825-74-3 3-methyl-2-phenylcyclohex-2-en-1-one 
• 129053-78-7 2-(4-methoxyphenylmethyl)amino-3-methylcyclohex-2-en-1-one 
• 129053-73-2 3-methyl-2-phenylmethylaminocyclohex-2-en-1-one 
• 1193-18-6 3-methylcyclohexen-2-one 
• 3400-78-0 2-hydroxy-3-methyl-2-cyclohexen-1-one 
• 4920-77-8 3-methyl-2-nitrophenol 
• 128475-80-9 3-methyl-2-nitrocyclohex-2-enone 

Relevant articles and documents

Tandem Lewis acid catalysis for the conversion of alkenes to 1,2-diols in the confined space of bifunctional TiSn-Beta zeolite

The generation of multifunctional isolated active sites in zeolite supports is an attractive method for integrating multistep sequential reactions into a single-pass tandem catalytic reaction. In this study, bifunctional TiSn-Beta zeolite was prepared by a simple and scalable post-synthesis approach, and it was utilized as an efficient heterogeneous catalyst for the tandem conversion of alkenes to 1,2-diols. The isolated Ti and Sn Lewis acid sites within the TiSn-Beta zeolite can efficiently integrate alkene epoxidation and epoxide hydration in tandem in a zeolite microreactor to achieve one-step conversion of alkenes to 1,2-diols with a high selectivity of >90%. Zeolite confinement effects result in high tandem rates of alkene epoxidation and epoxide hydration as well as high selectivity toward the desired product. Further, the novel method demonstrated herein can be employed to other tandem catalytic reactions for sustainable chemical production.

Pyrenediones as versatile photocatalysts for oxygenation reactions with: In situ generation of hydrogen peroxide under visible light

Pyrenediones (PYDs) are efficient photocatalysts for three oxygenation reactions: Epoxidation of electron deficient olefins, oxidative hydroxylation of organoborons, and oxidation of sulfides via in situ generation of H2O2 under visible light irradiation, using oxygen as a terminal oxidant and IPA as a solvent and a hydrogen donor.

A procedure for the preparation of Ti-Beta zeolites for catalytic epoxidation with hydrogen peroxide

Ti-Beta zeolite has been successfully prepared via a reproducible and scalable two-step post-synthesis strategy, which consists of creating vacant T sites with associated silanol groups by dealumination of H-Beta and subsequent dry impregnation of the resulting Si-Beta with titanocene dichloride. The mechanism of Ti incorporation into the framework of Beta is investigated by diffuse reflectance infrared Fourier transform (DRIFT) and multinuclear solid-state nuclear magnetic resonance (SSNMR) spectroscopy. Characterization results obtained from diffuse reflectance ultraviolet-visible (UV-vis) and X-ray photoelectron spectroscopy (XPS) reveal that the majority of incorporated Ti species exist in the form of isolated tetrahedrally coordinated Ti(iv) in the zeolite framework while a minority exists in the form of isolated octahedrally coordinated Ti(vi) at framework or extra-framework positions. The obtained Ti-Beta zeolites are highly active and selective catalysts for the epoxidation of unsaturated ketones, e.g. 2-cyclohexen-1-one, with hydrogen peroxide as an oxidant. A quasilinear correlation between the epoxidation rate and the number of framework Ti(iv) species could be drawn evidencing that these Ti(iv) species are responsible for the epoxidation activity of the Ti-Beta zeolites under study. The impact of preparation parameters and reaction conditions on the catalytic performances of the Ti-Beta zeolites in the epoxidation of unsaturated organic compounds with hydrogen peroxide is discussed in detail. the Partner Organisations 2014.