- An efficient protocol for the oxidative hydrolysis of ketone SAMP hydrazones employing SeO2 and H2O2 under buffered (pH 7) conditions
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An effective oxidative protocol for the liberation of ketones from SAMP hydrazones employing peroxyselenous acid under aqueous buffered conditions (pH 7) has been developed. The procedure proceeds without epimerization of adjacent stereocenters or dehydration, in representative SAMP alkylation and aldol reaction adducts, respectively.
- Smith III, Amos B.,Liu, Zhuqing,Simov, Vladimir
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experimental part
p. 3131 - 3134
(2010/03/24)
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- Selenium Heterocycles. XXXVII. Synthesis of 4-(Thiazol-4-yl)-1,2,3-selenadiazoles and 4-(Selenazol-4-yl)-1,2,3-selenadiazoles
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Starting from readily available 2-substituted-4-formylthiazoles and selenazoles, a series of 4-(2-aryl-4-selenazolyl)-1,2,3-selenadiazoles I and 4-(2-substituted-4-thiazolyl)-1,2,3-selenadiazoles II were prepared.Pyrolysis of compound II afforded (2-substituted-4-thiazolyl) acetylenes VII.Addition of potassium hydroxide pellets to an alcoholic solution of II gave 2-substituted-1,4-diselenafulvenes VIII.Decomposition of compound II with base followed by the addition of carbon disulfide gave 5-substituted 2-thioxo-1,3-thiaselenoles XI.
- Shafiee, A.,Anaraki, M.,Bazzaz, A.
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p. 861 - 864
(2007/10/02)
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