Page 88 - 《精细化工》2023年第9期
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·1936· 精细化工 FINE CHEMICALS 第 40 卷
将 4-烯丙氧基苯甲醛(1.60 g,0.01 mol)、苯 (DMSO-d 6 , 400 MHz), δ: 10.36 (s, 1H, OH),
乙酮(1.20 g,0.01 mol)、无水乙醇(10 mL)加 8.10~8.01 (m, 2H, Ar—H), 7.91~7.85 (d, J = 16.0 Hz,
1H, ==CH—Ar), 7.79~7.61 (m, 3H, Ar—H,
入配有恒压漏斗、蛇形冷凝管的 50 mL 单口烧瓶中, O==C—CH), 7.07~6.85 (m, 4H, Ar—H), 6.06 (tt, J =
室温下磁力搅拌溶解后,逐滴滴加 10 mL 3 mol/L 16.8、5.5 Hz, 1H, ==CH), 5.42 (dd, J = 17.3、1.7 Hz,
NaOH 溶液,30 min 左右滴完。搅拌反应 7 h,滤去 1H, ==CH 2 ), 5.28 (dd, J = 10.5、1.5 Hz, 1H, ==CH 2 ),
13
反应液得到浅黄色固体,用体积分数 95%的乙醇水 4.64 (d, J = 5.3 Hz, 2H, CH 2 ); CNMR (DMSO-d 6 ,
溶液重结晶纯化,干燥后制得浅黄色固体粉末状化 101 MHz), δ: 190.85, 162.58, 162.49, 143.89, 133.09,
131.70, 131.41 (2C), 129.77 (2C), 128.16, 120.97,
合物(E)-3-(4-烯丙氧基)苯基-1-苯基丙-2-烯-1-酮
118.17 (2C), 116.57, 115.03 (2C), 68.79。LC-MS (ESI),
(Ⅱ),记为 Blank-Cha,收率 83.2%,熔点: +
1
106.7~107.6 ℃。 HNMR (CDCl 3 , 400 MHz), δ: m/Z : [C 18 H 16 O 3 +H] 理论 值 281.1099 ,实测 值
7.97~7.90 (m, 2H, Ar—H), 7.71 (d, J = 15.6 Hz, 1H, 281.1041。
==CH—Ar), 7.56~7.44 (m, 3H, Ar—H), 7.47~7.36 (m, 制备方法同 Blank-Cha,苯乙酮改用对甲氧基苯
2H, Ar—H), 7.34 (d, J = 15.6 Hz, 1H, O==C—CH==), 乙酮(1.50 g,0.01 mol),制得白色至浅黄色固体
6.91~6.81 (m, 2H, Ar—H), 5.98 (m, J = 17.3 Hz, 1H, 粉末状化合物(E)-3-(4-烯丙氧基)苯基-1-(4-甲氧基
==CH), 5.36 (dd, J = 17.3、1.6 Hz, 1H, ==CH 2 ), 5.24
苯基)丙-2-烯-1-酮(Ⅳ),记为 Methoxy-Cha,收率
(dd, J = 10.5、1.4 Hz, 1H, ==CH 2 ), 4.51 (d, J = 5.3 Hz, 85.8%,熔点:135.4~136.6 ℃。 HNMR (CDCl 3 , 400
1
13
2H, CH 2 ); CNMR (CDCl 3 , 101 MHz), δ: 190.55, MHz), δ: 8.07~7.99 (m, 2H, Ar—H), 7.77 (d, J = 15.6
160.68, 144.65, 138.51, 132.72, 132.55, 130.20 (2C), Hz, 1H, ==CH—Ar), 7.63~7.55 (m, 2H, Ar—H), 7.43
128.56 (2C), 128.41 (2C), 127.75, 119.85, 118.05, (d, J = 15.6 Hz, 1H, O==C—CH), 7.02~6.90 (m, 4H,
115.17 (2C), 68.86 。 LC-MS (ESI), m/Z : Ar—H), 6.06 (m, J = 17.2 Hz, 1H, ==CH), 5.43 (dd,
+
[C 18 H 16 O 2 +H] 理论值 265.1150,实测值 265.1171。 J = 17.2、1.6 Hz, 1H, ==CH 2 ), 5.31 (dd, J = 10.5、
制备方法同 Blank-Cha,苯乙酮改用对羟基苯乙 1.4 Hz, 1H, ==CH 2 ), 4.58 (d, J = 5.3 Hz, 2H, CH 2 ),
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3.88 (s, 3H, CH 3 ); CNMR (CDCl 3 , 101 MHz,), δ:
酮(1.36 g,0.01 mol),反应完成后,用 3 mol/L
187.69, 162.25, 159.48, 142.72, 131.75, 130.33,
盐酸将体系 pH 调节至 2,滤去反应液得到黄色膏状 129.67 (2C), 129.05 (2C), 126.92, 118.60, 116.99,
固体,用去离子水洗涤至少 3 次,干燥后制得浅黄 114.10 (2C), 112.76 (2C), 67.83, 54.44。LC-MS (ESI),
+
色固体块状化合物(E)-3-(4-烯丙氧基)苯基-1-(4-羟 m/Z : [C 19 H 18 O 3 +H] 理论 值 295.1256 ,实 测值
基苯基)丙-2-烯-1-酮(Ⅲ),记为 Oxhydryl-Cha, 295.1100。
1
收率 52.5%,熔点:171.1~174.8 ℃。 HNMR 合成路线如下: