摘要:
The present invention is a method for producing a 2-oxazoline analogue or a 1,3-oxazine analogue represented by the following general formula (3) by reacting a 1,2-aminoalcohol compound or a 1,2-aminothiol compound with an α,α-dihaloamine compound.(In the formula, n represents 0 or 1, and R represents an oxygen atom or a sulfur atom. R1, R2 and R3 each represents an atom or a group shown in Group 1 to Group 3, and R0 represents an atom or a group shown in Group 2 or Group 3. Two or more of R1, R2 and R3 may be bonded to each other to form a ring.Group 1: a hydrogen atom, a halogen atom, a nitro group, a cyano group, a formyl group, a carboxyl group, a sulfonyl group, a sulfinoyl group or a sulfenyl group;Group 2: an alkyl group, which may have an arbitrary substituent, an aryl group or an aralkyl group; andGroup 3: an alkyl-substituted, aryl-substituted or aralkyl-substituted oxy group, a carbonyl group, an oxycarbonyl group, a carbonyloxy group, a thio group, a sulfonyl group, a sulfinoyl group or a sulfenyl group)
摘要:
Provided are a fluorous-tag-introduced fluoroamine of a general formula (I), its production method, a method of fluorination of a substrate having functional group containing oxygen with the fluoroamine serving as a fluorinating agent, and a method of recovering a fluorous-tag-introduced amide after the fluorination. The fluoroamine and its production method, as well as the fluorination method with the fluoroamine and the method of recovery of a fluorous-tag-introduced amide are ecological and advantageous in industrial use, as the load for separating and collecting the product after the fluorination with the fluoroamine serving as a fluorinating agent is small. (In the formula, R0 is an alkyl group or an aryl group having substituent(s) of Rf—(CH2)m—; Rf is a perfluoroalkyl group; m is from 0 to 2; R1 and R2 each are an alkyl group or an aryl group.)
摘要:
A process for producing an α,α-difluoroamine which comprises using hydrogen fluoride and a Lewis base in specific amounts in the halogen-fluorine exchange reaction using an α,α-dihaloamine as the substrate. The process can be industrially applied, enables to obtain the object compound in a short time at a great yield and can be conducted easily with excellent productivity.
摘要:
The present invention is a method for producing a 2-oxazoline analogue or a 1,3-oxazine analogue represented by the following general formula (3) by reacting a 1,2-aminoalcohol compound or a 1,2-aminothiol compound with an α,α-dihaloamine compound.(In the formula, n represents 0 or 1, and R represents an oxygen atom or a sulfur atom. R1, R2 and R3 each represents an atom or a group shown in Group 1 to Group 3, and R0 represents an atom or a group shown in Group 2 or Group 3. Two or more of R1, R2 and R3 may be bonded to each other to form a ring.Group 1: a hydrogen atom, a halogen atom, a nitro group, a cyano group, a formyl group, a carboxyl group, a sulfonyl group, a sulfinoyl group or a sulfenyl group;Group 2: an alkyl group, which may have an arbitrary substituent, an aryl group or an aralkyl group; andGroup 3: an alkyl-substituted, aryl-substituted or aralkyl-substituted oxy group, a carbonyl group, an oxycarbonyl group, a carbonyloxy group, a thio group, a sulfonyl group, a sulfinoyl group or a sulfenyl group)
摘要:
Provided are a fluorous-tag-introduced fluoroamine of a general formula (I), its production method, a method of fluorination of a substrate having functional group containing oxygen with the fluoroamine serving as a fluorinating agent, and a method of recovering a fluorous-tag-introduced amide after the fluorination. The fluoroamine and its production method, as well as the fluorination method with the fluoroamine and the method of recovery of a fluorous-tag-introduced amide are ecological and advantageous in industrial use, as the load for separating and collecting the product after the fluorination with the fluoroamine serving as a fluorinating agent is small. (In the formula, R0 is an alkyl group or an aryl group having substituent(s) of Rf—(CH2)m—; Rf is a perfluoroalkyl group; m is from 0 to 2; R1 and R2 each are an alkyl group or an aryl group.)
摘要:
A process for producing an α,α-difluoroamine which comprises using hydrogen fluoride and a Lewis base in specific amounts in the halogen-fluorine exchange reaction using an α,α-dihaloamine as the substrate. The process can be industrially applied, enables to obtain the object compound in a short time at a great yield and can be conducted easily with excellent productivity.
摘要:
The invention provides a process for producing a chroman compound represented by formula (1), characterized in that the process includes allowing a phenol, an unsaturated compound, and a formaldehyde to react in the absence of catalyst and in the presence of water in an amount by mole 1 to 10 times that of the phenol.According to the present invention, a high-purity chroman compound can be produced in the absence of catalyst and under mild conditions. In addition, the invention provides an industrial means for producing the compound, without using a large amount of an acid or a base serving as a reaction promoter or a catalyst, which would otherwise cause side reactions, apparatus corrosion, etc.
摘要:
A fluorine compound represented by Formula (1) is provided. The above fluorine compound is effective for introducing a fluorine atom into a compound having an active group such as an oxygen-containing functional group, and it can be used for uses of surface treatment, cleaning and coating. Further, after the fluorination reaction, the above compound is recovered and can be reused as a starting material for producing the above fluorine compound, and it is useful for various fluorination processes. (wherein X represents a nitrogen or phosphorus atom; R0, R1, and R2 represent hydrogen, an alkyl group or aryl group which may have a substituent, and they each may be the same or different; and R0, R1, and R2 may be combined with each other to form a ring).
摘要:
Catalysts useful for producing methylamines and having practical catalyst life and large selectivity for dimethylamine comprise crystalline silicoaluminophosphate molecular sieves which have a molar ratio of silicon atom to aluminum atom in the range of 0.01-0.30.
摘要:
A process for producing alkali pulp by using a single, cylindrical pressurized reaction vessel having therein a liquor-inpregnating zone, a cooking zone, a washing zone, and a diluting zone in that order, and having a motor-driven scraping or agitating device and a pulp discharging outlet in the end portion of the diluting zone. Alkaline aqueous medium containing dissolved oxygen therein is introduced into the diluting zone. A part of the introduced alkaline aqueous medium countercurrently contacts cooked cellulosic materials transferred from the washing zone to the diluting zone to proceed with oxygen-alkali delignification, and is finally discharged out of the vessel from the end portion of the cooking zone. The remainder of the introduced alkaline aqueous medium contacts the cooked cellulosic materials in the diluting zone in a scraping or agitating manner by means of the motor-driven scraping or agitating device to proceed with oxygen-alkali delignification, and finally serves as diluting liquor to be discharged out of the vessel accompanying the resulting pulp.