WebJun 26, 2015 · In this study an adsorbent, a magnetic zeolite modified with 2-(3,4-dihydroxyphenyl)-1,3-dithiane, was synthesized as an easily separable sorbent for the simultaneous removal of two toxic heavy metals, cadmium and copper, from soil and water samples. The synthesized magnetic sorbent was characterized by SEM and XRD. WebNational Center for Biotechnology Information. 8600 Rockville Pike, Bethesda, MD, 20894 USA. Contact. Policies. FOIA. HHS Vulnerability Disclosure. National Library of Medicine. National Institutes of Health. Department of Health and Human Services.
n-Butyllithium - Wikipedia
WebSep 22, 2008 · Lewis base‐catalyzed 1,3‐dithiane addition to electrophiles such as carbonyl compounds and N‐substituted aldimines with 2‐trimethylsilyl‐1,3‐dithiane (TMS‐dithiane) is described.By the activation of the carbon‐silicon bond in the presence of a Lewis base catalyst such as tetrabutylammonium phenoxide (PhONnBu 4), a 1,3‐dithiane addition … WebA mild process using a combination of TMSCl and NaI in acetonitrile is used to regenerate carbonyl compounds from a variety of dithiane and dithiolane derivatives. This easy to … curriculum sheyla
Mild Deprotection of Dithioacetals by TMSCl/NaI Association …
Webreport the use of mercury(II) nitrate trihydrate as a highly efficient, fast and selective reagent for the deprotection of thioacetals (1,3-dithiolanes and 1,3-dithianes) to the … http://chemweb.bham.ac.uk/~coxlr/Teaching/3rd_Year/Functional_Group/Pdf_files/Dithianes%20(students).pdf WebA number of 1,3-dithianes have been efficiently converted into the parent carbonyl compounds in good yields by treatment with 1.5 equiv. of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) in MeCN–H 2 O (9:1).The reactions of 2-aryl-substituted 1,3-dithianes bearing electron-donating groups on the benzene ring with DDQ afforded thioesters … charter fishing crystal river fl