203719-54-4

Basic information

• Product Name: (+)-LIMONENE 1 2-EPOXIDE
• Synonyms: (+)-p-mentha-1,8-diene 1,2-epoxide;7-Oxabicyclo[4.1.0]heptane,1-methyl-4-(1-methylethenyl)-,(4R)-(9CI);(+)-p-Mentha-1,8-diene 1,2-epoxide, (4R)-1,2-Epoxy-p-menth-8-ene, (4R)-4-Isopropenyl-1-methyl-1-cyclohexene 1,2-epoxide;(R)-Limonene 1,2-epoxide (Mixture of Diastereomers);(4R)-1-Methyl-4-(1-Methylethenyl)-7-oxabicyclo[4.1.0]heptane;(R)-LiMonene Epoxide;(+)-LiMonene oxide, Mixture of cis and trans 97%;(4R)-1-methyl-4-(prop-1-en-2-yl)-7-oxabicyclo[4.1.0]heptane
• CAS NO: 203719-54-4
• Molecular Formula: C₁₀H₁₆O
• Molecular Weight: 152.23
• Product Categories: EPOXYDE;Chiral Reagents;Miscellaneous Reagents
• Mol File: 203719-54-4.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 198.1°Cat760mmHg
• Flash Point: 65 °C
• Appearance: /
• Density: 0.930 g/mL at 20 °C(lit.)
• Refractive Index: n20/D 1.467
• Storage Temp.: 2-8°C
• Solubility: Dichloromethane, Ether
• BRN: 80231
• CAS DataBase Reference: (+)-LIMONENE 1 2-EPOXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: (+)-LIMONENE 1 2-EPOXIDE(203719-54-4)
• EPA Substance Registry System: (+)-LIMONENE 1 2-EPOXIDE(203719-54-4)

Safety Data

• Safety Statements: 23-24/25
• WGK Germany: 3
• F: 1-10
• Hazardous Substances Data: 203719-54-4(Hazardous Substances Data)

Usage

Chemical Properties

(+)-LIMONENE 1 2-EPOXIDE is Colourless oil

Uses

Different sources of media describe the Uses of 203719-54-4 differently. You can refer to the following data:
1. Oxidized Limonene, a common reagent used in the preparation of fragrant compounds.
2. (+)-LIMONENE 1 2-EPOXIDE, a common reagent used in the preparation of fragrant compounds.
3. (+)-Limonene oxide (mixture of cis and trans) undergoes biocatalytic resolution in the presence of epoxide hydrolase to form enantiomerically pure cis- and trans-limonene oxides.

General Description

Limonene oxide, also known as limonene 1,2-epoxide, is a monoterpene that can be prepared from limonene. It has antinociceptive and antitumoral activities and is used in many products like food additives, cosmetics, and perfumes.

Upstream product

• 1195-92-2 Limonene oxide 
• 5989-27-5 D-limonene 

Downstream Products

• 125627-55-6 (1S,2S,4R)-4-isopropyl-1-methyl-2-phenylselenenylcyclohexan-1-ol 
• 619-62-5 (1R,4S)-4-isopropyl-1-methyl-2-cyclohexen-1-ol 
• 117556-62-4 (1S,4S)-4-isopropyl-1-methyl-2-cyclohexen-1-ol 
• 34350-53-3 cis-p-menth-1-en-3-ol 
• 25437-28-9 trans-p-menth-1-en-3-ol 
• 1946-00-5 (1S,2S,4R)-limonene-1,2-diol 
• 6909-30-4 (1S,2R,4R)-limonene-1,2-epoxide 

Relevant articles and documents

Environmentally friendly epoxidation of olefins under phase-transfer catalysis conditions with hydrogen peroxide

Several catalysis systems, WO3sH2O/H2O2 -H2O-H3O+/Q+A-/H3 PO4/H2SO4/solvent (Q+A- = Arquad 2HT, [CH3(n-C8H17)3N]+ Cl-; [CH3(n-C8H17)3N]+ HSO4-, [CH3(n-C8H17)3N]+ H2PO4-; solvent: CHCl3 or toluene) were used to selectively and efficiently convert olefins to their corresponding epoxides at room temperature. With cyclooctene and using Arquad 2HT as the phase-transfer agent, there is a synergy when both phosphate and sulfate anions are present in the reaction medium compared with systems using either one or the other. The importance of the tungsten(VI) source is, as found previously, underlined by the strong activity increase when WO3sH2O is used instead of Na2WO4s2H2O, even at room temperature. The influence of the phase-transfer agent Q+A- has been evaluated for the system WO3sH2O/H2O2 -H2O-H3O+/Q+A-/toluene. With Q+A- (Q+ = [CH3(n-C8H17)3N]+ and A- = Cl-, HSO4-, and H2PO4-), the best results for the conversion of cyclooctene at room temperature are obtained with [CH3(n-C8H17)3N]+ H2PO4-. 31P NMR experiments show the transfer in the organic phase of the [PO4{W2O2(μ-O2) 2(O2)2}2]3- and [HPO4{W2O2(μ-O2) 2(O2)2}]2- complexes with H3PO4 and H2PO4-, whereas only [PO4{W2O2(μ-O2) 2(O2)2}2]3- can be identified with the addition of H3PO4/HSO4- or H2PO4-/H2SO4. Moreover, acid-sensitive epoxides can be prepared using buffers generated by the addition of sodium hydrogenocarbonate or, preferably, disodium hydrogenophosphate, leading to high selectivities toward the corresponding epoxides. The data show that disodium hydrogenophosphate gives the best results even if the reaction time has to be increased to obtain high conversions. The WO3sH2O/H2O2 -H2O/[CH3(n-C8H17) 3N]+H2PO4-/toluene catalysis system can be reused in 5 consecutive runs with no loss in activity.

Organocatalyzed epoxidation of alkenes in continuous flow using a multi-jet oscillating disk reactor

The times are changing: A batch process, the Minisci epoxidation, is transformed into a continuous-flow protocol for the selective aerobic radical epoxidation of alkenes. The use of a novel reactor type allows to considerably shorten reactor residence times. Experimental results suggest that two different reaction mechanisms exist for the oxidation: one for the batch conditions and a different one for flow synthesis protocol. Copyright

Facile methods for the separation of the cis- and trans-diastereomers of limonene 1,2-oxide and convenient routes to diequatorial and diaxial 1,2-diols

Facile methods are described for accessing four diastereomerically pure products from the commercial mixture of limonene oxide. The use of either an aqueous mercury(II)-mediated or H+-catalysed hydration, afforded a kinetic separation of (+)-limonene oxide (cis- or trans-isomer could be respectively recovered) from the commercially available diastereomeric mixture in good recovery yields and high diastereoselectivity (>98% de). The hydrolysed limonene oxide products, either trans-diequatorial or trans-diaxial diols, are also formed in good conversion yields and high diastereoselectivity (>98% de). Georg Thieme Verlag Stuttgart.