| 摘要 |
PROBLEM TO BE SOLVED: To provide a new phosphonic ester derivative, important as an intermediate for reaction with aldehydes and synthesis of a new olefin compound useful as an organic electronic material, etc., by reacting a specific aromatic halomethyl derivative with a phosphorous ester derivative. SOLUTION: This new phosphonic ester derivative is represented by formula I [R<1> and R<2> are each a (substituted) alkyl; R<3> is a lower alkyl] and useful as a synthetic intermediate. etc., for reaction with aldehydes and synthesis of a new dimer typeα-phenylstilbene derivative useful as an organic electronic material. The compound is obtained by reacting an aromatic halomrthyl derivative represented by formula II (X<1> and X<2> are each a halogen) with a photosphorous ester derivative represented by the formula P(OR<3> )3 (R<3> is a lower alkyl) at 140 deg.C for 5hr.
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