Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 39093-93-1, name is Thiomorpholine 1,1-dioxide. A new synthetic method of this compound is introduced below. 39093-93-1
Dissolved a mixture of 1 ,4-dibromobenzene (10.014 g, 42.4 mmol) and thiomorpholine 1 ,1 – dioxide (5.16 g, 38.2 mmol) in dioxane (150 mL), then added Pd(OAc)2 (959 mg, 4.24 mmol), BINAP (racemic) (2.64 g, 4.24 mmol), and CS2CO3 (41.48 g, 127 mmol). The reaction mixture was degassed several times then connected to a reflux condensor under nitrogen and heated to 100 ¡ãC for overnight. The reaction was cooled to RT then filtered through celite, and washed with EtOAc. The resulting solution was concentrated under reduced pressure and the residue was purified by flash chromatography on silica gel (0-50percent EtOAc in hexanes) to yield the desired 4-(4-Bromophenyl)thiomorpholine 1 ,1 -dioxide as a light yellow solid. MS (ES, m/z): 292.1 (M + 1).
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Reference£º
Patent; MERCK SHARP & DOHME CORP.; STACHEL, Shawn; PAONE, Daniel, V.; LI, Jing; GINNETTI, Anthony; FU, Jianmin; XU, Shimin; WO2015/123089; (2015); A1;,
Thiomorpholine – Wikipedia
Thiomorpholine | C4H9NS – PubChem