نتایج جستجو برای: organosulfur compounds

تعداد نتایج: 226771  

Journal: :Astronomy and Astrophysics 2021

Context. Sulfur (S) is of prime interest in the context (astro)chemical evolution and habitability. However, origin S-bearing organic compounds Solar System still not well constrained. Aims. We carried out laboratory experiments to test whether complex organosulfur can be formed when surfaces icy bodies are subject high-energy S ions. Methods. Non-S-bearing residues, during processing astrophys...

Journal: :Journal of ethnopharmacology 2006
Seokwon Kim Roman Kubec Rabi A Musah

A total of 18 organosulfur compounds originating from Petiveria alliacea L. roots have been tested for their antibacterial and antifungal activities. These represent compounds occurring in fresh homogenates as well as those present in various macerates, extracts and other preparations made from Petiveria alliacea. Of the compounds assayed, the thiosulfinates, trisulfides and benzylsulfinic acid...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2001
K Fujita T Kamataki

The capacities to inhibit coumarin 7-hydroxylase activity of human cytochrome P450 2A6 (CYP2A6) by organosulfur compounds were evaluated. Five dialkyl sulfides and five dialkyl disulfides, with alkyl chains from methyl to amyl, were examined. In addition to these chemicals, diallyl sulfide, diallyl disulfide, allyl methyl sulfide, allyl n-propyl sulfide, allyl phenyl sulfide, diphenyl sulfide, ...

Journal: :Molecular cancer therapeutics 2005
Danhua Xiao John T Pinto Gregg G Gundersen I Bernard Weinstein

We previously reported that the garlic-derived compound S-allylmercaptocysteine (SAMC) causes growth inhibition, mitotic arrest, and induction of apoptosis in SW480 human colon cancer cells by inducing microtubule depolymerization and c-Jun NH(2) terminus kinase-1 activation. In the present study, we compared the aforementioned effects of SAMC to those of a series of garlic-derived and other or...

Journal: :Journal of bacteriology 2012
Shannon L Brooks Jonathan D Van Hamme

Here we present a whole-genome shotgun sequence of Rhodococcus species strain JVH1, an organism capable of degrading a variety of organosulfur compounds. In particular, JVH1 is able to selectively cleave carbon-sulfur bonds within alkyl chains. A large number of oxygenases were identified, consistent with other members of the genus.

Journal: :The Journal of organic chemistry 2009
Chang-Feng Li Wen-Jing Xiao Howard Alper

Palladium-catalyzed ring-opening thiocarbonylation of vinylcyclopropanes (VCPs) with thiols and carbon monoxide affords the corresponding unsaturated thioesters in moderate to excellent yields. This reaction provides a general method for the ring-opening thiocarbonylation of VCPs. It further demonstrates the utility of transition metal catalysts for the synthesis of organosulfur compounds.

Journal: :Physical chemistry chemical physics : PCCP 2015
Yongjie Xi Zhangxian Chen Vincent Gan Wei Kiat Liang Huang Hansong Cheng

Hydrogenation of unsaturated organosulfur compounds is an essential process through which these species are converted into cleaner and more useful compounds. Hydrogen bronze materials have been demonstrated to be efficient catalysts in hydrogenation of simple unsaturated compounds. Herein, we performed density functional theory calculations to investigate hydrogenation of thiophene on hydrogen ...

2012
Rajasekaran Raghu Kuan-Hung Lu Lee-Yan Sheen

Garlic ( dà suàn; the bulb of Allium sativum), bestowed with an array of organosulfur compounds finds its application in treating many ailments including cardiovascular problems, common cold, bacterial and fungal infections and cancer. Numerous epidemiological evidences document the beneficial effects of various bioactive organosulfur compounds of garlic against different types of cancer. Studi...

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