Process for recovery of 1,1,1,3,3,3-hexafluoroisopropanol from the waste stream of sevoflurane synthesis
申请人:Baxter International Inc
公开号:US20040147779A1
公开(公告)日:2004-07-29
Provided is a process of obtaining 1,1,1,3,3,3-hexafluoro-2-propanol (“HFIP”) from a composition comprising an HFIP hydrolyzable precursor. The HFIP hydrolyzable precursor is a compound, other than sevoflurane itself, that has an intact 1,1,1,3,3,3-hexafluoroisopropoxy moiety[(CF
3
)
2
CHO—], and contains one or more moieties susceptible to acidic hydrolysis, such that HFIP is released upon such treatment. The process is useful, among other things, for recovering HFIP from waste streams associated with the synthesis of the inhalation anesthetic, fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether (“sevoflurane”). The process includes heating the composition with a strong protic acid to a temperature effective to hydrolyze at least some of the HFIP hydrolyzable precursor to HFIP, and then isolating the HFIP from the heated composition.
提供了一种从含有HFIP水解前体的组成物中获取1,1,1,3,3,3-六氟-2-丙醇(“HFIP”)的过程。HFIP水解前体是一种化合物,除了七氟醚本身外,具有完整的1,1,1,3,3,3-六氟异丙氧基基团((CF3)2CHO-),并含有一种或多种易于酸性水解的基团,因此在这种处理下释放HFIP。该过程可用于从与吸入麻醉剂氟甲基2,2,2-三氟-1-(三氟甲基)乙基醚(“七氟醚”)的合成相关的废水中回收HFIP。该过程包括将组成物与强质子酸加热到有效的温度以水解至少一部分HFIP水解前体为HFIP,然后从加热的组成物中分离出HFIP。