33---2--15--55 Method for the preparation of 33-bis-bis-2-methoxyphenylphosphanylmethyl-15-dioxy -spiro 55 undecane and their derivatives

摘要

The present invention relates to a process for the preparation of 3,3-bis-[bis-(2-methoxyphenyl) phosphanylmethyl]-1,5-dioxy-spiro [5,5 ] Undecane and a derivative thereof, and relates to a safe and efficient production method in mass production.