| titleOfInvention |
Crystalline solvate and non-solvated forms of 6,6'-[[3,3',5,5'-tetrakis(1,1-dimethylethyl)-[1,1'-biphenyl]-2,2'-diyl]bis(oxy)]bis-dibenzo [d,f] [1,3,2]-dioxaphosphepine |
| abstract |
The present invention relates to a process for the preparation of 6,6 '- [[3,3', 5,5'-tetrakis (1,1-dimethylethyl) - [1,1'-biphenyl] -2,2'- Yl) oxy)] bis-dibenzo [d, f] [1,3,2] -dioxaphosphepin ("Compound I"), and its toluene-solvate and acetone-solvate . |