29943-42-8, Dihydro-2H-pyran-4(3H)-one is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,29943-42-8
NaH (mass fraction 60%, 5g, 125mmol) was slowly added to tetrahydrofuran (200mL) at room temperature. After the addition was complete, tetrahydro-4H-pyran-4one (5.0g, 50mmol) and dimethyl carbonate were added. (10 mL, 125 mmol). The reaction system was heated to 60 C, and the reaction was stirred for 24 hours. After the reaction was detected to be complete by LC-MS, suction filtration was performed. After the filtrate was adjusted to neutral pH with acid, extraction was performed with diethyl ether, the liquid phase was separated, and the organic phase was dried over anhydrous sodium sulfate. The solution was concentrated by filtration and purified by silica gel column chromatography to obtain methyl 4-oxotetrahydro-2H-pyran-3-carboxylate (3.6 g, 22.8%).
As the paragraph descriping shows that 29943-42-8 is playing an increasingly important role.
Reference£º
Patent; Fujian Tuoxi New Materials Technology Co., Ltd.; Weng Songqing; (14 pag.)CN110372712; (2019); A;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics