反应 #3241718
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05562866
反应条件: temp:140.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a round bottom flask is added 42.4 (0.4 mol) of diethylene glycol under a nitrogen atmosphere. To this reaction mass is added 2.3 g (0.1 mole) of sodium over 1 hour. The reaction mass is heated to 130° C. whereby all of the sodium has reacted. Then 27.4 g (0.1 mol) of C17H35Cl is added over 1 hour and then kept for 17 hours at these conditions. Reaction temperature is then increased to 140° C. and kept for 17 hours at these conditions for 24 hours. The reaction mass upon cooling consists of 2 layers. GC shows the bottom layer to be mostly diethylene glycol. The reaction mass is filtered and the bottom diethylene glycol layer separated. The top organic layer is diluted with diethyl ether, water washed and dried over anhydrous MgSO4. After filtering, the organic layer is fractionally distilled to give a fraction at from 200°-220° C. and 2.25-2.5 mm containing the desired product, C17H35O(CH2CH2O)2OH, in two isomeric forms, one of which is the desired isomer of this invention, namely C8H17 (C6H13)CHCH2CH2 (OCH2CH2)2OH. has reacted Reaction temperature kept for 17 hours at these conditions for 24 hours The reaction mass upon cooling The reaction mass is filtered the bottom diethylene glycol layer separated The top organic layer is diluted with diethyl ether, water washed dried over anhydrous MgSO4 After filtering the organic layer is fractionally distilled to give a fraction at from 200°-220° C. and 2.25-2.5 mm
来源 ID: ord-3b283c65998d4966ac93f4b38c0c2de8