✍ Scribed by Wieland Tyrra
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Silver(I) fluoride is a versatile tool in desulfuration‐fluorination reactions with thiuram disulfides and thioureas. Reactions of AgF and trimethyl(perfluoroorgano)‐ and trimethyl(alkynyl)‐silanes offer a convenient approach to the corresponding organosilver derivatives, which are excellent reagents for oxidative organylations of group 12–16 elements. Reactions of AgF and elements of groups 13–16 open a convenient access to the corresponding fluorides. © 2002 Wiley Periodicals, Inc. Heteroatom Chem 13:561–566, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.10102
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The 13C NMR of ethylenic carbon atoms in the methylene-interrupted cis double bonds as found in polyunsaturated fatty acids (PUFAs), their precursors and analogs was studied. The chemical shifts of unsaturated carbon atoms are strongly dependent on a combination of electric Ðeld e †ects from the hea
## Abstract Methyl‐N‐carbobenzoxy‐β‐^131^I‐D‐alaninate (**2**) was synthesized by the melt method. Partial hydrolysis of compound **2** gave methyl β‐^131^I‐D‐alaninate (**3**). Hydrolysis of **2** with **2** N HCl gave β‐^131^I‐D‐alanine. The ^123^I and ^125^I labelled compounds were synthesized b