Abstract: A polycyclic pentafluorosulfanylbenzene compound represented by the following general formula (1) and a process for producing the polycyclic pentafluorosulfanylbenzene compound which comprises reacting a specific pentafluorosulfanylbenzene compound with a specific boronic acid compound are provided. The polycyclic pentafluorosulfanylbenzene compound is a novel compound and can be produced by the process industrially advantageously. (R1 to R4 each independently represent hydrogen atom or fluorine atom, R5 represents a hydrocarbon group having at least two cyclic structures which may have substituents, and Z represents keto group, thioketo group, methylene group or difluoromethylene group.

Abstract: Disclosed is a commercially suitable method for producing a 1-substituted-5-acylimidazole compound. A 1-substituted-5-acylimidazole compound is produced with a high position selectivity by reacting an N-substituted amidine compound or a salt thereof with a ketone compound in the presence of a base.

Abstract: A polycyclic pentafluorosulfanylbenzene compound represented by the following general formula (1) and a process for producing the polycyclic pentafluorosulfanylbenzene compound which comprises reacting a specific pentafluorosulfanylbenzene compound with a specific boronic acid compound are provided. The polycyclic pentafluorosulfanylbenzene compound is a novel compound and can be produced by the process industrially advantageously. (R1 to R4 each independently represent hydrogen atom or fluorine atom, R5 represents a hydrocarbon group having at least two cyclic structures which may have substituents, and Z represents keto group, thioketo group, methylene group or difluoromethylene group.

Abstract: Disclosed is a commercially suitable method for producing a 1-substituted-5-acylimidazole compound. A 1-substituted-5-acylimidazole compound is produced with a high position selectivity by reacting an N-substituted amidine compound or a salt thereof with a ketone compound in the presence of a base.

Abstract: The present invention provides a process for preparing an N,N?-dialkoxy-N,N?-dialkyl oxamide represented by the formula (3): wherein R2 and R3 may be the same or different from each other, and each represent an alkyl group having 1 to 4 carbon atoms, which comprises reacting an oxalic acid diester represented by the formula (1): wherein R1 and R1? may be the same or different from each other, and each represent a hydrocarbon group, and an N-alkyl-O-alkylhydroxylamine represented by the formula (2): R2O—NHR3 ??(2) wherein R2 and R3 have the same meanings as defined above, or an acid salt thereof in the presence of a base.

Abstract: The present invention provides a process for preparing an N,N?-dialkoxy-N,N?-dialkyl oxamide represented by the formula (3): wherein R2 and R3 may be the same or different from each other, and each represent an alkyl group having 1 to 4 carbon atoms, which comprises reacting an oxalic acid diester represented by the formula (1): wherein R1 and R1? may be the same or different from each other, and each represent a hydrocarbon group, and an N-alkyl-O-alkylhydroxylamine represented by the formula (2): R2O—NHR3??(2) wherein R2 and R3 have the same meanings as defined above, or an acid salt thereof in the presence of a base.