反应 #3576233
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05650133
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a suspension of tetraaza-12-crown-4 tetrahydrochloride (66.6 g, 0.209 mol, Parish, Inc.) in chloroform (2 L), was bubbled NH3 (g) through a gas dispersion tube for 1 hour. The solution was allowed to stir overnight and the white solid was filtered off and washed with CHCl3 (4×100 mL). The combined filtrate was concentrated in vacuo to a white solid which was washed with diethyl ether (4×50 mL) and dried under vacuum at ambient temperature. A second crop of the free base was isolated from the ether washes to give a combined yield of 35.1 g (97.5%). 1H NMR (CDCl3): δ 2.32 (s, 4 H), 2.70 (s, 16 H). was bubbled NH3 (g) through a gas dispersion tube for 1 hour the white solid was filtered off washed with CHCl3 (4×100 mL) The combined filtrate was concentrated in vacuo to a white solid which was washed with diethyl ether (4×50 mL) dried under vacuum at ambient temperature A second crop of the free base was isolated from the ether to give a combined yield of 35.1 g (97.5%)
来源 ID: ord-5360e823134d41f59281529105ce6924