Abstract: The present invention provides a method for producing a carbonyl compound by dehydrogenating an alcohol. Namely, it relates to a method for producing a carbonyl compound, which comprises dehydrogenating an alcohol in the presence of a complex compound catalyst comprising ruthenium and an organic phosphine wherein aliphatic carbons are bonded to two or more of the three bonding hands of the phosphorus atom.

Abstract: Disclosed is a process for preparing a pyrrolidone derivative, which comprises allowing at least one of &ggr;-butyrolactone, 4-hydroxybutyric acid, and a low-molecular polymer of 4-hydroxybutyric acid to react with an alkylamine, wherein (i) the content of a primary amine in said alkylamine is 85% by weight or lower, and (ii) the molar ratio of the total amount of the charged primary and secondary amines to the total amount of the charged &ggr;-butyrolactone, 4-hydroxybutyric acid, and low-molecular 4-hydroxybutyric acid polymers satisfies formula: 1.0≦(A1+A2/2.5)/(B1+B2+B3) wherein A1, A2, B1, B2, and B3 represent the molar amounts of a primary amine, a secondary amine, &ggr;-butyrolactone, 4-hydroxybutyric acid, and low-molecular 4-hydroxybutyric acid polymers, respectively.

Abstract: Disclosed is a process for preparing a pyrrolidone derivative, which comprises allowing at least one of &ggr;-butyrolactone, 4-hydroxybutyric acid, and a low-molecular polymer of 4-hydroxybutyric acid to react with an alkylamine, wherein (i) the content of a primary amine in said alkylamine is 85% by weight or lower, and (ii) the molar ratio of the total amount of the charged primary and secondary amines to the total amount of the charged &ggr;-butyrolactone, 4-hydroxybutyric acid, and low-molecular 4hydroxybutyric acid polymers satisfies formula:

Abstract: The present invention provides a method for producing a carbonyl compound by dehydrogenating an alcohol. Namely, it relates to a method for producing a carbonyl compound, which comprises dehydrogenating an alcohol in the presence of a complex compound catalyst comprising ruthenium and an organic phosphine wherein aliphatic carbons are bonded to two or more of the three bonding hands of the phosphorus atom.

Abstract: A method for producing an unsaturated alcohol having a chain structure formed by oligomerization of a conjugated alkadiene, which comprises reacting a conjugated alkadiene and water in the presence of carbon dioxide by means of a palladium compound and a phosphorus compound having at least one trivalent phosphorus-oxygen single bond, as catalyst.

Abstract: A method for producing an unsaturated alcohol having a chain structure formed by oligomerization of a conjugated alkadiene, which comprises reacting a conjugated alkadiene and water in the presence of carbon dioxide by means of a palladium compound and a phosphorus compound having at least one trivalent phosphorus-oxygen single bond, as catalyst.

Abstract: The disclosure is a process for producing an alkadienol, which comprises reacting a conjugated alkadiene and water in the presence of carbon dioxide using a palladium compound and a phosphine compound as catalyst, the reaction being carried out with a free phosphine compound present in the reaction solution.