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Diethyl ethoxysuccinate

The reaction mixture is transferred to a 2-L, round-bottomed flask with ethanol washing and the ethanol is removed by rotatory evaporation. Diethyl ether (1 L) is added to precipitate the electrolyte salt, which is collected by filtration and washed with ether. The crude electrolyte is obtained as a white solid (32-32.5 g, theory 34.1 g). The filtrate and washings were combined and evaporated to give a viscous brown oil, which was vacuum distilled through a short Vigreux column (15 x 2.5 cm). After a forerun of 70 mL of material boiling below 150°C (0.15 mm) the product (92-96 g, 53-56%), bp 150-155°C (0.1 mm), is collected (Notes 8 and 9). The forerun contained diethyl maleate, diethyl fumarate, diethyl succinate, and diethyl ethoxysuccinate. The product is a mixture of diastereomers on standing some meso isomer, mp 74-75°C, crystallizes. [Pg.59]

Diethoxy-2-propanone, D-710 Diethyl 2-acetoxysuccinate, M-6 Diethyl D-allarate, A-74 Diethyl 2-ethoxysuccinate, M-6 Diethyl galactarate, G-2 Diethyl malate, M-6... [Pg.1039]


See also in sourсe #XX -- [ Pg.59 , Pg.60 ]

See also in sourсe #XX -- [ Pg.59 ]

See also in sourсe #XX -- [ Pg.59 , Pg.60 ]

See also in sourсe #XX -- [ Pg.59 ]

See also in sourсe #XX -- [ Pg.59 , Pg.60 ]




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