(HP 125 mercury arc) in methanol Irradiationphotoisomerisation, photostationary state (equilibrium) was studied; Product distribution;

<b>Multi-step reaction with 2 steps<br /> </b>1: 85 percent / 4N NaOH / methanol / 3 h / Ambient temperature; in the dark<br />2: (HP-125 mercury arc) / methanol / 4 h / Irradiation; various solvents; photoisomerisation, thermodynamic stability was studied<br /> <br /> &nbsp;