The medicinal thiosulfinates from garlic and Petiveria are not radical-trapping antioxidants in liposomes and cells, but lipophilic analogs are
作者:Bo Li、Feng Zheng、Jean-Philippe R. Chauvin、Derek A. Pratt
DOI:10.1039/c5sc02270c
日期:——
The radical-trapping antioxidant (RTA) activities of allicin and petivericin, thiosulfinates widely believed responsible for the medicinal properties of garlic andPetiveria, were determined in phosphatidylcholine lipid bilayers and mammalian cell culture.
In the process according to the invention for the manufacture of an alkanesulphonyl chloride RCH
2
—SO
2
Cl by oxidative chlorolysis of the corresponding mercaptan RCH
2
—SH, the mercaptan and water are introduced into the reaction mixture in the form of a dispersion of water in the mercaptan.
This makes it possible to obtain both an alkanesulphonyl chloride of very good quality and a hydrochloric acid of commercial grade.
Polyaniline derivatives and their production process
申请人:TOMOEGAWA PAPER CO. LTD.
公开号:EP0455224A2
公开(公告)日:1991-11-06
Novel polyaniline derivarives soluble in general organic solvents are provided without impairment of the inherent good properties of the corresponding polyanilines. The novel polyaniline derivatives are polymers represented by the following formula (I):
wherein Y means a group represented by the following formula: R₁CO-, R₂S-, R₂SO-, R₂SO₂- or
R₁ througu R₅ being particular substituent groups, k is an integer of 0 - 5, and n and m independently represent polymerisation degree and are integers satisfying the following equations: m/(n + m)=0.01 - 1 and . They can each be produced by reacting a halide, shich is represented by the following formula: Y - X wherein Y has the same meaning as described above and X means a chlorine or bromine atom, to a reduced polyaniline.
本发明提供了可溶于一般有机溶剂的新型聚苯胺衍生物,且不会损害相应聚苯胺的固有优良特性。新型聚苯胺衍生物是由下式(I)表示的聚合物:
其中 Y 指下式所代表的基团:R₁CO-、R₂S-、R₂SO-、R₂SO₂- 或
R₁至gu R₅ 为特定取代基,k 为 0 - 5 的整数,n 和 m 分别代表聚合度,且为满足以下公式的整数:m/(n + m)=0.01 - 1 和 。它们都可以通过与卤化物反应生成,卤化物用下式表示:Y - X 其中 Y 的含义与上述相同,X 指氯原子或溴原子,与还原型聚苯胺反应。
Uchino, Makoto; Sekiya, Minoru, Chemical and pharmaceutical bulletin, 1980, vol. 28, # 1, p. 126 - 133
作者:Uchino, Makoto、Sekiya, Minoru
DOI:——
日期:——
A Facile Synthesis of Symmetrical Alkanesulfonothioic<i>S</i>-Alkyl Esters (<i>S</i>-Alkyl Alkanethiosulfonates)