Formaldehyde → HCID 44542417、化合物
反応式
[C:1](=[O:4])([O-])[O-].[K+].[K+].[CH3:7]O.C=O.[CH2:11]([NH:13][CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])[CH3:12]>CCCCC>[CH2:11]([N:13]([CH2:7][O:4][CH3:1])[CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])[CH3:12][C:1](=[O:4])([O-])[O-].[K+].[K+].[CH3:7]O.C=O.[CH2:11]([NH:13][CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])[CH3:12]>CCCCC>[CH2:11]([N:13]([CH2:7][O:4][CH3:1])[CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])[CH3:12]18.0 g (0.13 mol) of potassium carbonate, 121.8 g (3.80 mol) of methanol and 60.0 g (2.00 mol) of paraformaldehyde are initially charged and cooled to −5° C. At this temperature, within 30 min, 262.6 g (2.00 mol) of ethyltrimethylsilanylmethylamine are metered in. The biphasic reaction mixture is stirred at −5° C. for a further 1 h and then warmed to room temperature within 20 min. Within 1 min, 382 g of pentane are metered in. The biphasic reaction mixture is separated and the upper, organic phase is dried azeotropically for 2 h. The organic phase is concentrated and then fractionally distilled. Yield 228.5 g (71%) of a colorless liquid.
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