Synthesis and characteristics of novel thiazoie and dithiazole derivatives. Reactions of acyclic- and heterocyclic Cis-disulfides with some nucleophilic phosphorus reagents
The behavior of phosphorus ylides such as alkoxycarbonyl- and β-ketoalkylidenephosphoranes toward different types of acyclic and cyclic cis-disulfides has been investigated whereby several substituted-thiazoles, dithiazoles, thioles and dithioles as well
Abdou, Wafaa M.
p. 393 - 396
(2007/10/03)
Syntheses and Reactions of 2-Halo-5-thiazolecarboxylates
A variety of 2-halo-5-thiazolecarboxylates was prepared from substituted-3-aminoacrylates and 3-ketoesters.Selective reduction of 2-chloro-5-thiazolecarboxylates 4a, 4i and 4j with sodium borohydride in ethanol provided the corresponding 2-halo-5-thiazolemethanols 27 - 29.Nucleophilic displacement on methyl methanesulfonate (32c) occured selectivity at the 5-substituent to provide 2-chloro-4-(trifluoromethyl)-5-(heteroatom-substituted methyl)thiazoles 32d-f.
Lee, Len F.,Schleppnik, Francis M.,Howe, Robert K.
p. 1621 - 1630
(2007/10/02)
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