2622
N.-M. BI, M.-G. REN, AND Q.-H. SONG
=
(C O), 147.0, 134.5(2C), 133.1, 133.0, 131.7, 127.0, 126.7(2C), 125.0, 42.0 (CH2),
22.6 (CH3); IR (KBr): n (cmꢃ1) ¼ 3437s, 1673s, 1592s, 1534s, 1332s, 1236m, 846m,
706s. TOFMS (EI) calcd. for (Mþ) C17H13NO3: 279.0895; found 279.0887.
2-(1-Acetamidoethyl)anthraquinone (2e). Irradiation for 3.5 h, yield 40%;
1
Rf ¼ 0.4 (ethyl acetate); mp 193–195ꢂC; H NMR (300 MHz, CDCl3) d ¼ 1.56 (d,
J ¼ 6.9 Hz, 3H, CHCH3), 2.05 (s, 3H, COCH3), 5.24 (quart, J ¼ 6.9 Hz, 1H,
NHCHCH3), 5.87 (d, J ¼ 6.9Hz, 1H, NHCH), 7.73–7.82 (m, 3H, HAr), 8.23–8.31 (m,
13
=
=
=
4H, HAr); C NMR (75MHz, CDCl3) d ¼ 182.6 (C O), 182.2 (C O), 168.7 (C O),
152.1, 134.6, 134.5, 133.2, 133.0, 132.3, 131.7, 127.2, 126.8, 126.7, 123.9, 48.0
(NHCHCH3), 22.6 (CH3), 22.0 (CH3); IR (KBr): n (cmꢃ1) ¼ 1675s, 1591s, 1324s,
1284s, 931m, 711s. TOFMS (EI) calcd. for (Mþ) C18H15NO3: 293.1052; found 293.1059.
ACKNOWLEDGMENT
We thank the National Natural Science Foundation of China (Grant Nos.
20972149 and 30870581).
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