醌类化合物结构解析

一橙红色针晶,分子式为C15H14O5,与NaOH反应呈红色,醋酸镁反应阳性,Molish反应阴性

UV:231(4.47),257(4.26),269(4.18),380(4.20),440(3.94)

IR:3400,1678,1625

1H-NMR:12.06(1H,S),11.82(1H,S),11.20(1H,S),

7.30(1H,br,), 7.17(1H,d,J=2.0Hz),6.98(1H,br),6.27(1H, d,J=2.0Hz), 2.42(3H,br)

二橙红色针晶,分子量254,分子式为C15H10O4,与10%NaOH溶液反应红色

UV:225(4.37),256(4.33),279(4.01),356(4.07),432(4.08)

IR:3100,1675,1621

1H-NMR:

7.30(1H,br,), 7.75(1H,d,J=8.5Hz),7.51,(1H,m),6.98(1H,br),7.23(1H, d,J=8.5Hz),

2.41(3H,br)

MS:254,226,198

三某蒽醌,黄色结晶,分子式C16H12O6(M+300),不溶于水,溶于5%NaOH呈深红色.可溶于5%NaCO3

IR:3320cm-1,1655cm-1,1634cm-1

1HNMR(δppm):3.73(3H,s),4.55(2H,s),7.22 (1H,d,J=8Hz), 7.75 (1H,d,J=8Hz),

7.61(1H,m), 7.8(1H,s),

结构解析1：

黄色片晶,分子式为C15H10O4,氨熏变红,乙酸镁反应阳性.

1HNMR(CDCl3)δppm:12.12(1H,Br.s),11.95(1H,Br.s),7.81(1H,dd,J1 =0.8,J2=8.0),

7.66(1H,t,J=8.0),7.63(1H,Br.s),7.28(1H,

dd,J1=0.8,J2=8.0),7.08(1H,Br.s),2.44(3H,s)

结构解析2：

黄色针晶,分子式为C16H12O5,氨熏变红,乙酸镁反应阳性.

1HNMR(CDCl3)δppm:12.31(1H,Br.s),12.11(1H,Br.s),

7.62(1H,Br.s),

7.36(1H,d,J=2.5), 7.08(1H,Br.s), 6.68(1H,d,J=2.5), 3.94(3H,s), 2.45(3H,s)

EI-MS:284,155,241,227,213

结构解析3：

黄色针晶,分子式为C15H10O5,氨熏变红,乙酸镁反应阳性.

1HNMR(CDCl3)δ 7.82(1H,d,J=2.4), 7.61(1H,Br.s),

7.32(1H,d,J=2.5), 7.14(1H,Br.s), 2.5(3H,Br.s)