WebControlled potential oxidation of a variety of 5-substituted 2-tert-butyl-1,3-dithianes in wet acetonitrile, using an undivided electrochemical cell, provide 4-substituted 1,2-dithiolane 1-oxides selectively and in good yields. Adsorption to the electrode surface of the platinum anode, rendering it passive in the electrolysis of these sulfur ... WebFrench: ·first/third-person singular present subjunctive of détenir
2‐Lithio‐1,3‐dithiane - Kolb - Wiley Online Library
Web1,3-Dithianes continue to play a pivotal role as acyl anion equivalents, and their use in the total synthesis of natural products has recently been reviewed <2003T6147>. One drawback associated with the use of 1,3-dithianes is the unpleasant smell of the thioacetals used in their synthesis. This problem may be overcome by the use of 1,3 ... WebThe stability of substituted 1,2-dithianes toward ring-opening polymerization was tested by heating the disulfides with a catalytic amount of sodium methanethiolate <1989T91>; none of the 1,2-dithianes were stable with respect to polymerization under these conditions.The thermal polymerization of 1,2-dithiane was also studied in detail <2005POJ512, … black war in tasmania
Elimination, fragmentation, and proton transfer in 1,3-dithianes …
Webdeprotection of thioacetals (1,3-dithiolanes and 1,3-dithianes) to the corresponding carbonyl compounds at solid state. This is the first report for solid-state deprotection of 1,3-dithiolanes and 1,3-dithianes with this reagent. Results and Discussion Deprotection of thioketals and thioacetals with mercury (II) nitrate trihydrate proceeds readily WebNov 21, 2024 · Krohn and co-workers developed a successful methodology of Lewis acid-catalyzed opening of 1,6-anhydro sugars with 1,3-propanedithiol to produce open chain aldehydes protected as 1,3-dithianes. The methodology constitutes a simple route to the complex macrolide building blocks, which are difficult to synthesize. WebDec 30, 2002 · A variety of 1,3-dithianes and 1,3-dithiolanes are deprotected in the solid state to the corresponding parent carbonyl compounds in excellent yields using … black warlock butterfly rs3