CN116444470A - 一种二羧酸二ddmp酯类化合物、制备方法及应用 - Google Patents
一种二羧酸二ddmp酯类化合物、制备方法及应用 Download PDFInfo
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- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
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- WLJVNTCWHIRURA-UHFFFAOYSA-M pimelate(1-) Chemical compound OC(=O)CCCCCC([O-])=O WLJVNTCWHIRURA-UHFFFAOYSA-M 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 2
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- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
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- 235000011037 adipic acid Nutrition 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
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- 238000006555 catalytic reaction Methods 0.000 description 1
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- 229940031578 diisopropyl adipate Drugs 0.000 description 1
- YPLYFEUBZLLLIY-UHFFFAOYSA-N dipropan-2-yl butanedioate Chemical compound CC(C)OC(=O)CCC(=O)OC(C)C YPLYFEUBZLLLIY-UHFFFAOYSA-N 0.000 description 1
- MSQKMFXJFBXZNQ-UHFFFAOYSA-N dipropan-2-yl pentanedioate Chemical compound CC(C)OC(=O)CCCC(=O)OC(C)C MSQKMFXJFBXZNQ-UHFFFAOYSA-N 0.000 description 1
- ZUDYLZOBWIAUPC-UHFFFAOYSA-L disodium;pentanedioate Chemical compound [Na+].[Na+].[O-]C(=O)CCCC([O-])=O ZUDYLZOBWIAUPC-UHFFFAOYSA-L 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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- Y02P20/584—Recycling of catalysts
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Abstract
本发明公开了一种二羧酸二DDMP酯类化合物、制备方法及应用,本申请以2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮(DDMP)和二羧酸二异丙酯为原料,制备了四种二羧酸二DDMP酯,二羧酸二DDMP酯类化合物的结构式如下:
Description
技术领域
本发明涉及烟用香料合成技术领域,特别涉及一种二羧酸二DDMP酯类化合物、制备方法及应用。
背景技术
酯类化合物是烟草中常见的香味物质,具有甜味或果香气息,与烟香香气协调,可以丰富烟香,提升香气质,改善卷烟余味。酯类化合物同时也是一种优良的潜香物质,在高温下发生热裂解反应,释放出羧酸、醇或酚类香味物质,调节烟气的酸碱度,使吸味醇和,还可以增加烟气浓度和香气量,提高卷烟品质。2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(DDMP)在味觉上呈现出的甜味突出,可明显提升卷烟烟气回甜感,凸显卷烟“甜”和“润”的口感特征。非挥发性酸也可以调节烟草pH,改善抽吸质量,使吃味醇和,还能增加烟气浓度,改善烟气的醇厚性,并在烟气中起到酸碱平衡作用。因此可以通过化学合成手段,设计合成同时兼具二者优点的酯类化合物,作为烟用香料添加到卷烟中。
传统二羧酸酯合成方法主要是以浓硫酸等强酸为催化剂,该方法存在反应时间长、副产物多、环境污染严重等缺点。
发明内容
本发明所要解决的技术问题是提供一种二羧酸二DDMP酯类化合物、制备方法及应用,其通过钌金属和硼化合物协同催化策略,活化羟基官能团底物,提高化学转化速率,具有反应收率高、易操作等优点。
本发明所要解决的技术问题是通过以下技术方案来实现的:
一种二羧酸二DDMP酯类化合物,所述二羧酸二DDMP酯类化合物的结构式如下:
优选地,所述二羧酸二DDMP酯类化合物的结构式如下:
一种二羧酸二DDMP酯类化合物的制备方法,包括以下步骤:
(1)在反应瓶中,依次加入原料2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(DDMP)、二羧酸异丙酯、催化剂和溶剂,升温至80~120℃反应24~48h;
(2)反应结束后,反应液用饱和碳酸钠溶液洗涤,分离得到有机相并经无水硫酸钠干燥,减压蒸除有机溶剂,粗产物用硅胶柱层析分离,得到二羧酸二DDMP酯;
反应式如下:
优选地,步骤(1)中,DDMP和二羧酸异丙酯的摩尔比为(2~4):1。
优选地,步骤(1)中,催化剂为三氯化钌和三溴化硼的混合物,其中三氯化钌和三溴化硼的摩尔比为1:(1~3),催化剂和原料DDMP的摩尔比为(0.01~0.20):1。
优选地,步骤(1)中,溶剂为六氟苯、三氟甲苯或1,3,5-三(三氟甲基)苯的一种或多种混合。
一种二羧酸二DDMP酯类化合物在卷烟中的应用。
优选地,二羧酸二DDMP酯化合物在卷烟中的总添加量为烟丝质量的10~100ppm。
本发明上述技术方案,具有如下有益效果:
本申请以2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(DDMP)和二羧酸二异丙酯为原料,制备了四种二羧酸二DDMP酯,该类化合物具有良好的存储稳定性和加香稳定性,添加至卷烟中,不仅可以增加口腔甜感,还能够中和烟气的碱性物质,柔和烟气,提升烟气透发性和细腻程度,具有潜在应用价值。
具体实施方式
现在将详细描述本发明的各种示例性实施例。应注意到:除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
实施例1
一种二羧酸二DDMP酯类化合物的制备方法,包括以下步骤:
(1)在反应瓶中,依次加入原料2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(2.88g,20mmol)、丁二酸二异丙酯(1.01g,5mmol)、三氯化钌(0.10g,0.5mmol)、三溴化硼(0.25g,1mmol)和六氟苯(25mL),升温至80℃反应36h;
(2)反应结束后,反应液用饱和碳酸钠溶液洗涤,分离得到有机相并经无水硫酸钠干燥,减压蒸除溶剂,粗产物以硅胶柱层析分离,得到丁二酸二DDMP酯1.24g,产率为67.0%。
实施例2
一种二羧酸二DDMP酯类化合物的制备方法,包括以下步骤:
(1)在反应瓶中,依次加入原料2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(2.88g,20mmol)、戊二酸二异丙酯(1.73g,8mmol)、三氯化钌(0.20g,1mmol)、三溴化硼(0.25g,1mmol)和三氟甲苯(25mL),升温至100℃反应48h;
(2)反应结束后,反应液用饱和碳酸钠溶液洗涤,分离得到有机相并经无水硫酸钠干燥,减压蒸除溶剂,粗产物以硅胶柱层析分离,得到戊二酸二DDMP酯1.94g,产率为63.2%。
实施例3
一种二羧酸二DDMP酯类化合物的制备方法,包括以下步骤:
(1)在反应瓶中,依次加入原料2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(2.88g,20mmol)、己二酸二异丙酯(1.84g,8mmol)、三氯化钌(0.20g,1mmol)、三溴化硼(0.25g,1mmol)和六氟苯(25mL),升温至90℃反应48h;
(2)反应结束后,反应液用饱和碳酸钠溶液洗涤,分离得到有机相并经无水硫酸钠干燥,减压蒸除溶剂,粗产物以硅胶柱层析分离,得到己二酸二DDMP酯2.07g,产率为65.0%。
实施例4
一种二羧酸二DDMP酯类化合物的制备方法,包括以下步骤:
(1)在反应瓶中,依次加入原料2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(2.88g,20mmol)、庚二酸二异丙酯(1.88g,10mmol)、三氯化钌(0.20g,1mmol)、三溴化硼(0.25g,1mmol)和1,3,5-三(三氟甲基)苯(25mL),升温至120℃反应24h。
(2)反应结束后,反应液用饱和碳酸钠溶液洗涤,分离得到有机相并经无水硫酸钠干燥,减压蒸除溶剂,粗产物以硅胶柱层析分离,得到庚二酸二DDMP酯2.55g,产率为62.0%。
化合物结构表征:
(1)丁二酸二DDMP酯:1H NMR(600MHz,CDCl3)δ4.52(dd,J=10.5,6.0Hz,2H),4.43(dd,J=12.1,6.0Hz,2H),4.05(dd,J=12.1,10.5Hz,2H),2.60(t,J=7.1Hz,4H),2.16(s,6H).13C NMR(150MHz,CDCl3)δ190.2,171.5,162.1,111.6,83.4,67.2,29.4,15.5.
(2)戊二酸二DDMP酯:1H NMR(600MHz,CDCl3)δ4.50(dd,J=10.4,6.0Hz,2H),4.44(dd,J=12.1,6.0Hz,2H),4.04(dd,J=12.1,10.4Hz,2H),2.60(m,4H),2.18(s,6H),2.02(m,2H).13C NMR(150MHz,CDCl3)δ190.2,171.4,162.1,111.5,83.4,67.2,33.4,20.4,15.4.
(3)己二酸二DDMP酯:1H NMR(600MHz,CDCl3)δ4.50(dd,J=10.5,6.0Hz,2H),4.43(dd,J=12.1,6.0Hz,2H),4.05(dd,J=12.1,10.5Hz,2H),2.30(m,4H),2.18(s,6H),1.59(m,4H).13C NMR(150MHz,CDCl3)δ190.1,171.5,162.1,111.6,83.4,67.2,26.4,24.3,15.5.
(4)庚二酸二DDMP酯:1H NMR(600MHz,CDCl3)δ4.52(dd,J=10.5,6.0Hz,2H),4.43(dd,J=12.1,6.0Hz,2H),4.05(dd,J=12.1,10.5Hz,2H),2.35(m,4H),2.16(s,6H),1.55(m,4H),1.30(m,2H).13C NMR(150MHz,CDCl3)δ190.1,171.5,162.1,111.6,83.4,67.2,28.4,26.7,24.7,15.5.
应用例1
分别称取一定量的上述实施例1-4制备的DDMP二酯I~IV,用乙醇稀释成5%的溶液,备用。
称取100g未加香加料的空白卷烟烟丝,均匀平铺于干净的托盘中,分别将化合物I~IV均匀喷洒在烟丝上,分别制得化合物I~IV与烟丝比重10ppm、50ppm和100ppm的加香烟丝,密封放置4h,放入50℃烘箱烘干,用蒸馏水加湿至标准水分(12%),卷制成标准烟支,平衡水分(湿度60%±2%,温度22±1℃)48h后进行评吸。
对照样为空白卷烟,对照样在相同温度和湿度条件下平衡48h。
香料感官评价结果见表1。
表1化合物I~IV加香评吸结果
由表1可知:化合物I~IV均具有显著提升卷烟烟气“回甜”特性,改善和修饰卷烟香气、降低刺激性、改善吸味、使余味干净而舒适的作用。
虽然本发明已以实施例公开如上,然其并非用于限定本发明,任何本领域技术人员,在不脱离本发明的精神和范围内,均可作各种不同的选择和修改,因此本发明的保护范围由权利要求书及其等同形式所限定。
Claims (8)
1.一种二羧酸二DDMP酯类化合物,其特征在于,所述二羧酸二DDMP酯类化合物的结构式如下:
2.根据权利要求1所述的二羧酸二DDMP酯类化合物,其特征在于,所述二羧酸二DDMP酯类化合物的结构式如下:
3.根据权利要求1-2任一所述的二羧酸二DDMP酯类化合物的制备方法,其特征在于,包括以下步骤:
(1)在反应瓶中,依次加入原料2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃-4-酮(DDMP)、二羧酸异丙酯、催化剂和溶剂,升温至80~120℃反应24~48h;
(2)反应结束后,反应液用饱和碳酸钠溶液洗涤,分离得到有机相并经无水硫酸钠干燥,减压蒸除有机溶剂,粗产物用硅胶柱层析分离,得到二羧酸二DDMP酯;
反应式如下:
4.根据权利要求3所述的二羧酸二DDMP酯类化合物的制备方法,其特征在于,步骤(1)中,DDMP和二羧酸异丙酯的摩尔比为(2~4):1。
5.根据权利要求1所述的二羧酸二DDMP酯类化合物的制备方法,其特征在于,步骤(1)中,催化剂为三氯化钌和三溴化硼的混合物,其中三氯化钌和三溴化硼的摩尔比为1:(1~3),催化剂和原料DDMP的摩尔比为(0.01~0.20):1。
6.根据权利要求1所述的二羧酸二DDMP酯类化合物的制备方法,其特征在于,步骤(1)中,溶剂为六氟苯、三氟甲苯或1,3,5-三(三氟甲基)苯的一种或多种混合。
7.一种根据权利要求1-2任一所述的二羧酸二DDMP酯类化合物在卷烟中的应用。
8.根据权利要求7所述的应用,其特征在于,二羧酸二DDMP酯化合物在卷烟中的总添加量为烟丝质量的10~100ppm。
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