Titanium compound and process for producing optically active...

Details Titanium compound and process for producing optically active... Titanium compound and process for producing optically active...

2005-10-06

2010-06-08

Saeed, Kamal A (Department: 1626)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C524S923000, C556S030000, C556S033000, C558S423000

Reexamination Certificate

active

07732544

ABSTRACT:
The present invention relates to a titanium compound produced from a reaction mixture of a titanium tetraalkoxide compound with water and an optically active ligand represented by the following general formula (1), or a titanium oxoalkoxide compound and an optically active ligand represented by the following general formula (1),wherein, in the formula, R2, R3and R4independently represent a hydrogen atom, an alkyl group or the like, and A* represents a hydrocarbon-containing group with three or more carbon atoms having an asymmetric carbon atom or axial asymmetry. The invention further relates to a process for producing optically active cyanohydrins which is characterized by reacting a carbonyl compound with a cyanating agent in the presence of such a titanium compound.

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