摘要:
A preparation process of a fluorine substituted aromatic compound comprising reacting an alkali metal or alkali earth metal salt of an aromatic compound having a hydroxy group with an organic fluorinating agent is disclosed. As a representative fluorinating agent, a bis-dialkylamino-difluoromethane compound, for example, 2,2′-difluoro-1,3-dimethylimidazolidine, is exemplified. According to the process, an industrially useful fluorinated aromatic compound, for example, a fluorobenzene, a fluorine substituted benzophenone, a fluorine substituted diarylsulfone can be prepared with ease in economy without specific equipment.
摘要:
The invention disclose a hydrogen fluoride containing composition comprising hydrogen fluoride and a compound which is liquid in the standard state (25° C., 1 atmosphere) and has a boiling point of 120° C. or more and pka of 12 or more at 25° C., and use of the composition for a fluorination agent. The compound which can be preferably used is represented by the formula (1): wherein R1 to R4 are a substituted or unsubstituted alkyl or aryl group and can be the same or different, and R1 or R2 or R3 and R4 can bond to form a ring having a nitrogen atom or a nitrogen atom and other hetero atom, or R1 and R3 can bond to form a ring having a nitrogen atom or a nitrogen atom and other hetero atom. The fluorination agent of the invention exerts effect with a similar reaction mechanism to hydrogen fluoride, can be applied to the halogen exchange reaction of a halogen containing organic compound, and can produce a fluorine containing compound with safety and ease without specific equipment or technique.
摘要:
There is disclosed a convenient and efficient process for producing a fluorinated silicon compound which comprises reacting a silicon compound having at least one group selected from the group consisting of a hydroxyl group, an alkoxy group, and an aryloxy group bonded to silicon atom, with a compound represented by the formula (1): wherein R1, R2, R3, and R4 may be the same or different, and each represents a substituted or unsubstituted, saturated or unsaturated alkyl group, or a substituted or unsubstituted aryl group; and R1 and R2 or R3 and R4 can bond to form a ring having one or more nitrogen atoms or having one or more nitrogen atoms and other hetero atoms; or R1 and R3 can bond to form a ring having two or more nitrogen atoms or having two or more nitrogen atoms and other hetero atoms, to fluorinate the groups.
摘要:
A preparation process of an acetylene derivative comprising reacting a compound having a skeleton represented by the formula (1): ##STR1## in the molecular formula with a compound represented by the formula (2): ##STR2## wherein R.sup.1, R.sup.2 R.sup.3 and R.sup.4 are individually an alkyl group having 1 to 6 carbon atoms and can be the same or different, R.sup.1 and R.sup.3 can bond each other to form a ring, and R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 can be bond each other to form one or two heterocyclic rings: or with a compound represented by the formula (3): wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same as in the formula (2), and X.sub.1 is a ##STR3## chlorine, bromine or iodine atom.
摘要:
The invention has disclosed a trifluoroacetoxylation agent and a preparation process of the agent, which is safe and ease to handle, very useful in industry, and represented by the formula (1); wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group and can be the same or different, R1 and R2 or R3 and R4 can bond to form a ring containing a nitrogen atom or a nitrogen atom and other hetero atoms, and R1 and R3 can bond to form a ring containing a nitrogen atom or a nitrogen atom and other hetero atoms.
摘要:
A method for producing an &agr;,&agr;-difluorocycloalkane at high purity with good efficiency, which comprises a step of treating a fluorocycloalkene with hydrogen fluoride wherein the fluorocycloalkene has one fluorine atom directly bonded to a carbon atom of carbon—carbon unsaturated double bond, more preferably, a step of directly adding the hydrogen fluoride to a reaction mixture obtained by treating the cycloalkanone with the de-oxygen fluorinating agent.
摘要:
Disclosed are a fluorinating agent represented by the general formula (1): wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group, and can be the same or different; R1 and R2 or R3 and R4 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms; or R1 and R3 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms, for example: a preparation process of the fluorinating agent and a process for preparing fluorine compounds by reacting various compounds with the fluorinating agent. The invention has also disclosed that the fluorinating agent is very effective for fluorinating oxygen containing functional compounds.
摘要:
Disclosed are a fluorinating agent represented by the general formula (1): wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group, and can be the same or different; R1 and R2 or R3 and R4 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms; or R1 and R3 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms, for example: a preparation process of the fluorinating agent and a process for preparing fluorine compounds by reacting various compounds with the fluorinating agent. The invention has also disclosed that the fluorinating agent is very effective for fluorinating oxygen containing functional compounds.
摘要:
Disclosed are a fluorinating agent represented by the general formula (1): wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group, and can be the same or different; R1 and R2 or R3 and R4 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms; or R1 and R3 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms, for example: a preparation process of the fluorinating agent and a process for preparing fluorine compounds by reacting various compounds with the fluorinating agent. The invention has also disclosed that the fluorinating agent is very effective for fluorinating oxygen containing functional compounds.
摘要:
The polymerization catalyst for a polythiourethane-based optical material of the present invention includes a sulfonate represented by the following general formula (1). Furthermore, in the formula, R1, R2, R3 and R4 each independently represent an alkyl group having 1 to 18 carbon atoms, R1, R2, R3 and R4 may be bonded to each other to form a ring. R5 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, and X represents a nitrogen atom or a phosphorus atom.