acetic acid in tetrahydrofuran -127 deg C, 1 h, then room t., 16 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
bis(cyclopentadienyl)titanium dichloride; magnesium in tetrahydrofuran 12 h; Ambient temperature; Yield given. Yields of byproduct given. Title compound not separated from byproducts;