To provide a titanium catalyst, which can be used for a reaction between a compound having a carbon-carbon unsaturated bond and a compound having an electrophilic functional group or an electrophilic reagent, and to provide a production process thereof, an organotitanium reacting reagent and a production process thereof.
The titanium catalyst for a reaction between a compound having a carbon-carbon unsaturated bond and a compound having an electrophilic functional group or an electrophilic reagent is prepared from a titanium compound represented by formula (1): TiX1X2X3X4 (1), wherein X1, X2, X3 and X4 represent a halogen atom, an alkoxy group having 1 to 20 carbon atoms, an aralkyloxy group, an aryloxy group, or group -NRxRy, wherein Rx and Ry represent an alkyl group having 1 to 20 carbon atoms or the like, and 1 to 10 times by mole, based on the titanium compound, of a Grignard reagent represented by formula (2): R1MgX5 (2) wherein R1 represents an alkyl group having 2 to 10 carbon atoms and having a hydrogen atom at the β-position and X5 represents a halogen atom.
SATO FUMIE
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa