作者:Tadao Yoshioka、Joel A. Krauser、F. Peter Guengerich
DOI:10.1021/tx020047t
日期:2002.11.1
did TCE oxide. Several hydrolysis products of TBE oxide were the same as formed from TCE oxide, i.e., glyoxylic acid, CO, and HCO(2)H. Br(2)CHCO(2)H was formed from TBE oxide; the yield was higher than for Cl(2)CHCO(2)H formed in the hydrolysis of TCE oxide. The yield of tribromoacetaldehyde was < 0.4% in aqueous buffer (pH 7.4). In rat liver microsomal incubations containing TBE and NADPH, Br(2)CHCO(2)H
卤代烯烃因其在工业中的广泛使用及其对人体的潜在毒性而备受关注。环氧化物是酶促氧化产物之一,并已对其毒性进行了研究。大部分注意力都放在了氯化环氧化物上,我们以前已经研究了单,二,三和四氯环氧乙烷的反应。为了进一步检验有关这些化合物反应性的某些假设,我们制备了三溴乙烯(TBE)氧化物,并将其与三氯乙烯(TCE)氧化物和其他氯化环氧化物进行了比较。TBE氧化物与H(2)O的反应比TCE氧化物快3倍。TBE氧化物的几种水解产物与TCE氧化物形成的水解产物相同,即乙醛酸,CO和HCO(2)H。由TBE氧化物形成Br(2)CHCO(2)H;收率高于三氯乙烯氧化物水解中形成的Cl(2)CHCO(2)H。在水性缓冲液(pH 7.4)中,三溴乙醛的产率<0.4%。在含有TBE和NADPH的大鼠肝微粒体温育中,Br(2)CHCO(2)H是主要产物,而三溴乙醛是次要产物。这些结果与先前针对卤化环氧化物开发的方案