|
|
[求助]
求人翻译 ~~~ 谢谢!!!
A saturated aqueous solution
of Na2CO3(20 mL) was then added slowly over a period
of 30 min while stirring. The organic layer was separated,
washed with water, and dried under vacuum. The crude
product was recrystallized from an acetone–benzene
mixture to afford 1. Yield: 94%, m.p 156–157 C.
C19H14N2O2: Found: C, 75.6; H, 4.6; N, 9.3. Calcd: C,
75.5; H, 4.7; N, 9.3.1H-NMR (CDCl3): d=12.72 (br, s,
1H), 8.90 (d,J=8.3 Hz, 1H), 8.76 (ddd,J=4.7, 1.7,
0.8 Hz, 1H), 8.29 (br, d, J=7.8 Hz, 1H), 7.90 (td,
J=7.7, 1.6 Hz, 1H), 7.76–7.78 (m, 2H), 7.56–7.66 (m,
3H), 7.45–7.49 (m, 3H), 7.15 (m, 1H) ppm.
![求人翻译 ~~~ 谢谢!!!]()
10.jpg |
» 猜你喜欢
售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急
已经有6人回复
售一区SCI文章T0P,我:8O.551.O54,科目全,可十急
已经有9人回复
售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急
已经有3人回复
考博求助
已经有3人回复
售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急
已经有5人回复
售SCI一区T0P文章,我:8.O.55.1.O.5.4,科目全,可+急
已经有4人回复
售SCI一区T0P文章,我:8.O.55.1.O.5.4,科目全,可+急
已经有5人回复
售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急
已经有9人回复
售一区SCI文章T0P,我:8O.551.O54,科目全,可十急
已经有9人回复
售SCI一区T0P文章,我:8.O.55.1.O.5.4,科目全,可+急
已经有10人回复
|