In an article, author is Degl’lnnocenti, A, once mentioned the application of 66-77-3, Category: isothiazole, Name is 1-Naphthaldehyde, molecular formula is C11H8O, molecular weight is 156.1806, MDL number is MFCD00004003, category is isothiazole. Now introduce a scientific discovery about this category.
Hexamethyldisilathiane-based thionation of carbonyl compounds: A versatile approach to sulfur-containing heterocycles
Reactions of hexamethyldisilathiane (HMDST) with carbonyl compounds under the catalytic activity of CoCl2 center dot 6H(2)O or trimethylsilyltriflate lead to a simple and general access to thioaldehydes and thioketones, which could be isolated as their cycloadducts with dienes. The use of CF3SO3SiMe3 in reactions with cyclohexadiene allows a stereopredetermined access to either the endo- or the exo-isomer. Furthermore, on using P-silyl-substituted acetylenic ketones, a smooth access to acetylenic thioketones can be achieved. In reactions with aromatic and heteroaromatic o-azido aldehydes, the reactivity of HMDST may be finely tuned toward the synthesis of o-azido thioaldehydes, fused isothiazole ring systems, aromatic and heteroaromatic o-amino aldehydes, and o-amino thioaldehydes. HMDST proved also very efficient in thionating more intriguing substrates such as acylsilanes. Thus, thioacylsilanes, thioformylsilanes, unsaturated thioacylsilanes and -stannanes can be obtained in good yields. Ethylenic thioacylsilanes showed an interesting behavior leading to a general synthesis of functionalized dithiins. Finally, HMDST led also to the synthesis of bis(thioacylsilanes), which led to the formation of new silylated thiaheterocyclic systems.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com