915095-89-5,915095-89-5, (S)-3-(4-(5-Bromo-2-chlorobenzyl)phenoxy)tetrahydrofuran is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
Take (S)-3-(4-(5-bromo-2-chlorobenzyl)phenoxy) tetrahydrofuran 183kg,400kg anhydrous THF/toluene (1:4) was added to the nitrogen-dried 3000 litre reactor.The liquid nitrogen was cooled to -78, and hexane solution of 1. 6 mol¡¤L-1 n-butyllithium was slowly added dropwise.Stirring was continued at this temperature for 1 h; 600 kg of a 2,3,4,6-tetra-O-trimethylsilyl-D-glucono-lactone (256 kg) in toluene solution cooled to -78C was slowly added dropwise to the above 600 kg. In the reaction solution,-78 reaction for 3 h, after the basic reaction of TLC detection is completed,At this temperature is added 500kg of methanesulfonic acid in methanol solution (methanesulfonic acid 225kg + methanol 275kg);The reaction was stirred at 0 C 4h, and then warmed to 40 C stirred reaction 6h;5 mol?L-1 sodium hydroxide aqueous solution was added to the reaction solution, and the pH was adjusted to 7-8; stirring for 30 min,Extract with ethyl acetate (300kg¡Á2)The organic phase is washed with saturated aqueous sodium chloride solution until neutral, then dried over anhydrous sodium sulfate and filtered.The filtrate was concentrated to dryness to give 208 kg of a light yellow viscous oil with a yield of 87%.
915095-89-5 (S)-3-(4-(5-Bromo-2-chlorobenzyl)phenoxy)tetrahydrofuran 15941217, aTetrahydrofurans compound, is more and more widely used in various fields.
Reference£º
Patent; Jiangsu Engineering Polytechnic College; Feng Chengliang; Yan Bin; (12 pag.)CN107652278; (2018); A;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem