17023-73-3

Upstream product

• 99-85-4 crithmene 
• 93-59-4 Perbenzoic acid 
• 67-66-3 chloroform 

Relevant academic research and scientific papers

METHOD FOR MANUFACTURING AN EPOXY COMPOUND AND METHOD FOR EPOXIDIZING A CARBON-CARBON DOUBLE BOND

The present invention provides a method for producing an epoxy compound, comprising oxidizing a carbon-carbon double bond of an organic compound by hydrogen peroxide in the presence of a neutral inorganic salt and a mixed catalyst of a tungsten compound (a), at least one phosphorus compound selected from the group consisting of phosphoric acids, phosphonic acids, and salts thereof (b) and a surfactant (c), and an epoxidizing method comprising oxidizing a carbon-carbon double bond by hydrogen peroxide in the presence of the catalyst and the neutral inorganic salt.

Reworkable thermosetting resin composition

This invention relates to thermosetting resin compositions useful for mounting onto a circuit board semiconductor devices, such as CSPs, BGAs, LGAs and the like, each of which having a semiconductor chip, such as LSI, on a carrier substrate. The compositions of this invention are reworkable when subjected to appropriate conditions.

Photooxygenation of natural a-terpinene.

Photooxygenation reaction of a -terpinene (1) in the presence of tetraphenyl porphine (TPP) or Rose Bengal (RB) gave 2, 5-dihydroperoxy-1-isopropylene-4-methylene-cyclohexane (2), 3,6-dihydroperorxy-3-isopropyl-6-methyl-2,4-cyclohexadiene (3) and 1,2&4,5-diepoxy-1-isopropyl-4-methylcyclohexane (4). The epoxide 4 was also synthesised through the epoxidation reaction of a-terpinene (1) with m-chloroperbenzoic acid (mcpba).

Selective Oxidation of Monoterpenes with Hydrogen Peroxide Catalyzed by Peroxotungstophosphate (PCWP)

Catalytic epoxidation of monoterpenes with aqueous hydrogen peroxide catalyzed by peroxotungstophosphate (PCWP) under biphase conditions using chloroform as the solvent was examined.A variety of terpenes was oxidized to the corresponding monoepoxides or diepoxides in good yields under mild conditions.For example, limonene (1) was converted into limonene oxide (1a) in which the cyclohexene double bond was selectively epoxidized in almost quantitative yield.The oxidation of γ-terpinene (2) with 2.2 equiv of 35percent H2O2 took place with high stereoselectivity to give cis-diepoxide 2c.In terpenes bearing electron-withdrawing groups such as neryl acetate (3), geranyl acetate (4), citral (5), and geranyl nitrile (6), the double bonds remote from the substituents were epoxidized in preference to the others.The epoxidation of linalool (9) by the present catalyst-oxidant system produced the cyclic products, hydroxy furan 9a and hydroxy pyran 9b, rather than epoxide. tert-Butyl alcohol was successfully employed as the solvent by treating a hydrogen peroxide solution of tert-butyl alcohol with MgSO4 prior to use.The regioselectivities in the epoxidation of monoterpenes can be favorably explained from the electron densities of the double bonds which were estimated using the CAChe system.