通过化学和酶促(过氧化物酶,单加氧酶,双加氧酶)氧化方法和手性固定相HPLC拆分外消旋的硫代亚磺酸盐,通过环状1,2-二硫化物的不对称硫氧化获得对映体富集和对映体纯的硫代亚磺酸盐。测定了手性硫代亚磺酸盐的对映体过量值,绝对构型和构型稳定性。当非环状和环状1,2-二硫化物用作假单胞菌的底物时,甲基苯基亚砜,苯并[ c ]噻吩顺式-4,5-二氢二醇和1,3-二氢苯并[ c ]噻吩衍生物是分离出的未预期类型的代谢物。恶臭株。提出了可能的生物合成途径,用于由1,4-二氢苯并-2,3-二噻吩生产代谢物,包括新型的顺式-二氢二醇代谢物,该代谢物也衍生自苯并[ c ]噻吩和1,3-二氢苯并[ c ]噻吩。
Mode of oxidations of organosulfur compounds: Example of nucleophilic oxygenations of thiolsulfinates
作者:Shigeru Oae、Toshikazu Takata
DOI:10.1016/s0040-4039(00)77448-x
日期:1980.1
Two types of oxygenative oxidations (Nucleophilic and Electrophilic Oxidations) of sulfur atom are proposed and a typical mode of nucleophilic oxidation is shown with a few unsymmetrical thiolsulfinates.
Selective Oxidation of Unsymmetrical Thiosulfinic<i>S</i>-Esters to the Corresponding Thiosulfonic<i>S</i>-Esters with NaIO<sub>4</sub>
作者:Toshikazu Takata、Yong Hae Kim、Shigeru Oae
DOI:10.1246/bcsj.54.1443
日期:1981.5
Unsymmetrical thiosulfinic S-esters were oxidized with sodium metaperiodate in aqueous media to the corresponding unsymmetrical thiosulfonic S-esters nearly quantitatively. The oxidation was accelerated by addition of a catalytic amount of inorganic and organic acids or halogen. Sulfinic esters were produced competitively along with the thiosulfonic S-esters in the oxidation of thiosulfinic S-esters in aqueous alcohol. However, unsymmetrical disulfides were not oxidized selectively to the corresponding unsymmetrical thiosulfonic S-esters but a mixture of both symmetrical and unsymmetrical thiosulfonic testers was obtained.