Abstract:
The invention relates to a method for producing isoxazolene of the formula (I), where the substituents have the following meanings: R1 is hydrogen, C¿1?-C6 alkyl, R?2 is C¿1-C6 alkyl, R?3, R4, R5¿ are hydrogen, C¿1?-C6 alkyl or R?4 and R5¿ together form a linkage, R6 is a heterocyclic ring, and n is 0, 1 or 2. Said method comprises the production of an intermediate compound of the formula (VI) where R?1, R3, R4 and R5¿ have the meanings given above. This step is followed by halogenation, thiomethylation, oxidation and acylation to yield compounds of formula (I). The invention also relates to new intermediate products for producing compounds of formula (I) and new methods for producing the intermediate products.
Abstract:
The invention pertains to a method in which a halogen atom of an organic compound is replaced with a group derived from a nucleophilic agent, at high yield and high efficiency, by the following method which includes a step of reacting the nucleophilic agent with an organic material having a halogen atom bonded to a carbon atom having four σ bonds, more specifically: a method for producing an organic compound having Q, the method including a step of reacting a compound represented by general formula (2) with an organic starting material having at least one halogen atom bonded to a carbon atom having four σ bonds so as to replace the halogen atom in the organic starting material with Q:
MQ a (2)
(wherein M represents an alkali metal atom, an alkali earth metal atom, or a rare earth metal atom; Q represents a moiety of an inorganic acid or an active hydrogen compound derived by eliminating a proton, wherein Q is a halogen atom different from the halogen atom in the organic starting material having the halogen atom bonded to the carbon atom having the four σ bonds; and a represents an integer of 1 to 3) in the presence of a compound represented by general formula (1) (wherein Z - represents an anion derived by eliminating a proton from an inorganic acid or an active hydrogen compound; R 2 is the same or different; R 2 each independently represent a C 1 -C 10 hydrocarbon group or two R 2 on the same nitrogen atom may be bonded with each other to form a ring with the nitrogen atom).
Abstract:
One embodiment of the present invention is directed to polysubstituted fullerene moieties having a plurality of substituents thereon, selected from hydroxy, oxide, nitro, amino, organocarboxy, amide, and mixtures thereof. Another embodiment is directed toward the preparation of the novel polysubstituted fullerenes which method comprises contacting fullerenes with an electrophilic reagent such as nitronium ion or an organic peracid. When the electrophilic agent is nitronium ion, the fullerene is further contacted with a nucleophilic reagent. The polysubstituted fullerenes are particularly useful as cross-linking agents in polymers and/or as core building blocks of star polymers.
Abstract:
Disclosed is a process for producing pentachloronitrobenzene (PCNB) by reacting hexachlorobenzene (HEX) with sodium hydrosulfide (NaSH) in the presence of sodium hydroxide (NaOH), sodium carbonate (Na 2 CO 3 ), or mixtures thereof to produce the sodium salt of pentachlorothiophenol (PCTP), followed by reacting it (or PTCP itself after acidifying) with nitric acid in the presence of sulfuric acid or oleum.