| abstract |
PROBLEM TO BE SOLVED: To provide an acyl germanium and an acyl tin compound as a photoinitiator for curing a radically polymerizable material by visible light for dental purposes. SOLUTION: For example, 1,2-bis (trismesitoyl gel) obtained by reacting tris (mesitoyl) germanium enolate (TMGe) prepared from tetrakis (mesitoyl) German with terephthaloyl chloride according to the following formula. Mill) Telephthalate 1 is shown. [Selection diagram] None |