CN117567471A - 一种新型反式玉米素的生产工艺 - Google Patents
一种新型反式玉米素的生产工艺 Download PDFInfo
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- UZKQTCBAMSWPJD-UQCOIBPSSA-N trans-Zeatin Natural products OCC(/C)=C\CNC1=NC=NC2=C1N=CN2 UZKQTCBAMSWPJD-UQCOIBPSSA-N 0.000 title claims abstract description 27
- UZKQTCBAMSWPJD-FARCUNLSSA-N trans-zeatin Chemical compound OCC(/C)=C/CNC1=NC=NC2=C1N=CN2 UZKQTCBAMSWPJD-FARCUNLSSA-N 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 33
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims abstract description 16
- SDRVOWGRWVHHKJ-GORDUTHDSA-N (e)-4-amino-2-methylbut-2-en-1-ol Chemical compound OCC(/C)=C/CN SDRVOWGRWVHHKJ-GORDUTHDSA-N 0.000 claims abstract description 10
- ZKBQDFAWXLTYKS-UHFFFAOYSA-N 6-Chloro-1H-purine Chemical compound ClC1=NC=NC2=C1NC=N2 ZKBQDFAWXLTYKS-UHFFFAOYSA-N 0.000 claims abstract description 10
- -1 (4 hydroxy-3 methyl-2 butene) -phthalimide Chemical compound 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims description 7
- 229940023877 zeatin Drugs 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004128 high performance liquid chromatography Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000012043 crude product Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 238000007039 two-step reaction Methods 0.000 abstract description 2
- 229920002494 Zein Polymers 0.000 description 5
- 239000005019 zein Substances 0.000 description 5
- 229940093612 zein Drugs 0.000 description 5
- UQHKFADEQIVWID-UHFFFAOYSA-N cytokinin Natural products C1=NC=2C(NCC=C(CO)C)=NC=NC=2N1C1CC(O)C(CO)O1 UQHKFADEQIVWID-UHFFFAOYSA-N 0.000 description 2
- 239000004062 cytokinin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000003828 vacuum filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005078 fruit development Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000030097 organ senescence Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/26—Heterocyclic compounds containing purine ring systems with an oxygen, sulphur, or nitrogen atom directly attached in position 2 or 6, but not in both
- C07D473/32—Nitrogen atom
- C07D473/34—Nitrogen atom attached in position 6, e.g. adenine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/09—Geometrical isomers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了一种新型反式玉米素的生产工艺,该工艺是E‑2(4羟基‑3甲基‑2丁烯)‑邻苯二甲酰亚胺在甲醇中与氢氧化钠回流反应,得到(E)‑4胺基‑1‑羟基‑2‑甲基‑2丁烯,过滤收集并浓缩滤液,再用正丙醇做溶剂,三乙胺为缚酸剂与6‑氯嘌呤反应最终生成反式玉米素。本发明以E‑2(4羟基‑3甲基‑2丁烯)‑邻苯二甲酰亚胺为原料,经过两步反应,获得高纯度的反式玉米素。本发明的制备方法能够有效提高反式玉米素的收率,方法简单,操作方便,便于工业化推广,具有良好的经济效益和社会效益。
Description
技术领域
本发明属于有机合成技术领域,具体说涉及一种新型反式玉米素生产工艺。
背景技术
反式玉米素是植物体内天然存在的一种天然细胞分裂素,对植物的生长和发育等多方面都具有一定的调节作用。除促进细胞分裂外,细胞分裂素能促使种子萌发、果实发育、开花等,它还有防止或延缓器官衰老的作用。从植物中分离出反式玉米素及其系列衍生物比较困难,收率低,成本高,通过生物体提取远远不能满足市场需求,目前已能人工合成,有关玉米素及其衍生物的合成方法,迄今已知道的有十多种,要高效率地获得高纯度产品有技术难度。
发明内容
本发明的目的是针对上述现有技术所存在的问题,提出一种新型反式玉米素的生产工艺,该生产工艺流程短、收率高,所得玉米素的纯度高。
为了实现上述目的,本发明采用的技术方案是:一种新型反式玉米素的生产工艺,所述生产工艺是:
S1.在甲醇中加入E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺以及氢氧化钠加热至60~68℃,反应2-4h,TLC监控反应进度,其中所述甲醇与E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺和氢氧化钠的体质比(甲醇单位为升,其它为克)为1:100:50,反应结束后降温至室温,真空抽滤,滤饼用甲醇洗涤,收集滤液,滤液减压蒸馏,得到淡黄色粘稠状油状物(E)-4胺基-1-羟基-2-甲基-2丁烯,收率90.6%;反应式为:
S2.在正丙醇中加入步骤S1所制得的(E)-4胺基-1-羟基-2-甲基-2丁烯,再加入6-氯嘌呤和三乙胺,搅拌升温到90℃,反应3小时后HPLC监控反应进度,6-氯嘌呤比例小于10%为反应终点,蒸出多余的三乙胺,降至室温,出现淡黄色固体,过滤,用水洗涤滤饼,得到玉米素粗品;所述正丙醇与(E)-4胺基-1-羟基-2-甲基-2丁烯、6-氯嘌呤和三乙胺的体质比(正丙醇的单位为升,其它为克)为:1:60:100:100;粗品用乙醇重结晶,活性炭脱色,得到纯度99%以上的类白色玉米素精品。反应式为:
本发明的原理及有益效果是:本发明公开了一种新型反式玉米素的制备方法,该方法是E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺在甲醇中与氢氧化钠回流反应,得到(E)-4胺基-1-羟基-2-甲基-2丁烯,过滤收集并浓缩滤液,再用正丙醇做溶剂,三乙胺为缚酸剂与6-氯嘌呤反应最终生成反式玉米素。
本发明以E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺为原料,经过两步反应,获得高纯度的反式玉米素。本发明的制备方法能够有效提高反式玉米素的收率,方法简单,操作方便,便于工业化推广,具有良好的经济效益和社会效益。
附图说明
图1是本发明制备的反式玉米素HPLC图谱。
图2是本发明制备的反式玉米素1H NMR图谱。
图3-5是本发明制备的反式玉米素的实物图。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例不能理解为对本发明的限制。
本实施例反式玉米素的生产工艺是:
S1.在10升甲醇中加入1000克E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺、500克氢氧化钠加热至60~68℃,反应2-4h,TLC监控反应进度,反应结束后降温至室温,真空抽滤,滤饼用1升甲醇洗涤,收集滤液,滤液减压蒸馏,得到396.4克淡黄色粘稠状油状物(E)-4胺基-1-羟基-2-甲基-2丁烯,收率90.6%。
S2.在5升正丙醇中加入300克(E)-4胺基-1-羟基-2-甲基-2丁烯,500克6-氯嘌呤,500克三乙胺,搅拌升温到90℃,反应3小时后HPLC监控反应进度,6-氯嘌呤比例小于10%为反应终点,蒸出多余的三乙胺,降至室温,出现淡黄色固体,过滤,用水洗涤滤饼,得到玉米素粗品,粗品用乙醇重结晶,活性炭脱色,得到纯度99.53%的类白色反式玉米素精品580克,收率高达89.2%。
本实施例所制得的反式玉米素检测结果见图1和图2,从图1中可知:该工艺生产的反式玉米素化学纯度高达99.53%,总杂少,最大单杂不超过0.5%;从图2中可知:反式玉米素结构分析正确,无残留溶剂,产品化学纯度和液相图谱一致;从图3-5中可以看到本发明实施例所制得的玉米素实物色泽通白、晶体颗粒大小均匀,品相及纯度较佳。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (1)
1.一种新型反式玉米素的生产工艺,其特征在于:所述生产工艺是:
S1.在甲醇中加入E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺以及氢氧化钠加热至60~68℃,反应2-4h,TLC监控反应进度,其中所述甲醇与E-2(4羟基-3甲基-2丁烯)-邻苯二甲酰亚胺和氢氧化钠的体质比(l:g:g)为1:100:50,反应结束后降温至室温,真空抽滤,滤饼用甲醇洗涤,收集滤液,滤液减压蒸馏,得到淡黄色粘稠状油状物(E)-4胺基-1-羟基-2-甲基-2丁烯,收率90.6%;
S2.在正丙醇中加入步骤S1所制得的(E)-4胺基-1-羟基-2-甲基-2丁烯,再加入6-氯嘌呤和三乙胺,搅拌升温到90℃,反应3小时后HPLC监控反应进度,6-氯嘌呤比例小于10%为反应终点,蒸出多余的三乙胺,降至室温,出现淡黄色固体,过滤,用水洗涤滤饼,得到玉米素粗品;所述正丙醇与(E)-4胺基-1-羟基-2-甲基-2丁烯、6-氯嘌呤和三乙胺的体质比(l:g:g:g)为:1:60:100:100;粗品用乙醇重结晶,活性炭脱色,得到纯度99%以上的类白色玉米素精品。
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