in toluene heating with toluene at temp. >80°C; chromy. of the triene (TLC, silica); detn. by spectroscopy;

in toluene heating with toluene at temp. >80°C; chromy. of the triene (TLC, silica); detn. by spectroscopy;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br />&nbsp;byproducts: chromium hexacarbonyl, 7,8-diphenylbicyclo{4.2.1}nona-2,4,7-triene; Irradiation (UV/VIS); photolysis (medium-pressure Hg vapor lamp) of a soln. of Cr(CO)3(C7H8) in hexane and 1 equiv of PhCCPH (25&deg;C, 4.5 h), pptn.;&nbsp;<br /> &nbsp;