Production Process of Alkoxy-Titanium Complex

A process for producing an alkoxy-titanium complex of formula (2):

• wherein A, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each denotes the same meaning as described below;
• R11 and R12 are the same or different and denote
• a C1-20 alkyl group which may be substituted by halogen,
• a C7-20 aralkyl group which may be substituted by halogen, or
• a C6-20 aryl group which may be substituted by halogen, and R11 and R12 may be bonded to form a ring,
• which comprises reacting
• an alkaline earth metal alkoxide with a titanium halide complex of formula (1):
• wherein A denotes a Group 14 element of the periodic table;
• R1, R2, R3, and R4 are the same or different and denote a hydrogen atom, halogen,
• a C1-20 alkyl group which may be substituted by halogen,
• a C6-20 aryl group which may be substituted by halogen,
• a C7-20 aralkyl group which may be substituted by halogen,
• a silyl group substituted by C1-20 hydrocarbon which may be substituted by halogen,
• a C 1-20 alkoxy group which may be substituted by halogen,
• a C6-20 aryloxy group which may be substituted by halogen,
• a C7-20 aralkyloxy group which may be substituted by halogen,
• a silyloxy group substituted by C1-20 hydrocarbon which may be substituted by halogen,
• an amino group substituted by C1-20 hydrocarbon which may be substituted by halogen,
• a phosphino group substituted by C1-20 hydrocarbon which may be substituted by halogen, or
• a thio group substituted by C1-20 hydrocarbon which may be substituted by halogen;
• R5, R6, R7, R8, R9, and R10 are the same or different and denote a hydrogen atom, halogen,
• a C1-20 alkyl group which may be substituted by halogen,
• a C1-20 alkoxy group which may be substituted by halogen,
• a C6-20 aryl group which may be substituted by halogen,
• a C6-20 aryloxy group which may be substituted by halogen,
• a C7-20 aralkyl group which may be substituted by halogen,
• a C7-20 aralkyloxy group which may be substituted by halogen,
• a silyl group substituted by C1-20 hydrocarbon which may be substituted by halogen, or
• an amino group substituted by C1-20 hydrocarbon which may be substituted by halogen;
• neighboring groups among R1, R2, R3, and R4 may be arbitrarily bonded to form a ring and R5 and R6 may be bonded to form a ring;
• neighboring groups among R7, R8, R9, and R10 may be arbitrarily bonded to form a ring, and
• X1 and X2 independently denote any halogen atom.