CN109232641B - 一种三(三甲硅基)亚磷酸酯的制备方法 - Google Patents
一种三(三甲硅基)亚磷酸酯的制备方法 Download PDFInfo
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- VMZOBROUFBEGAR-UHFFFAOYSA-N tris(trimethylsilyl) phosphite Chemical compound C[Si](C)(C)OP(O[Si](C)(C)C)O[Si](C)(C)C VMZOBROUFBEGAR-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims description 6
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 15
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims abstract description 15
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 12
- 229960000549 4-dimethylaminophenol Drugs 0.000 claims description 6
- 239000005457 ice water Substances 0.000 claims description 6
- XONPDZSGENTBNJ-UHFFFAOYSA-N molecular hydrogen;sodium Chemical compound [Na].[H][H] XONPDZSGENTBNJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims 3
- 150000007530 organic bases Chemical class 0.000 abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052744 lithium Inorganic materials 0.000 abstract description 10
- 239000000047 product Substances 0.000 abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 231100000053 low toxicity Toxicity 0.000 abstract 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- 238000004821 distillation Methods 0.000 description 6
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 4
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 4
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000002000 Electrolyte additive Substances 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 2
- 229940075419 choline hydroxide Drugs 0.000 description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 2
- 239000012312 sodium hydride Substances 0.000 description 2
- 229910000104 sodium hydride Inorganic materials 0.000 description 2
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 2
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/141—Esters of phosphorous acids
- C07F9/1415—Compounds containing the structure P-O-acyl, P-O-heteroatom, P-O-CN
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Abstract
本发明公开了使用亚磷酸和六甲基二硅氮烷为原料,以有机碱为助剂反应得到三(三甲硅基)亚磷酸酯和氨气,反应结束后,常压蒸馏回收未反应原料六甲基二硅氮烷,减压蒸馏得到三(三甲硅基)亚磷酸酯。本发明采用的原料均为价格低廉的市售化工原料,原料毒性、腐蚀性较小,提高了生产的安全性,同时降低了原料成本和设备投资。反应的选择性90%以上,GC检测只生成产品和副产氨气,没有其他含磷产物,产品的氯离子残留量低于10ppm,满足锂电池应用要求。
Description
技术领域
本发明涉及测定锂电池电解液添加剂合成领域,尤其涉及一种三(三甲硅基)亚磷酸酯的制备方法。
背景技术
三(三甲硅基)亚磷酸酯(TMSPi)是一种性能优良的锂电池电解液添加剂。锂电池通常含有高分子化合物作为电解质或隔膜材料,在使用过程中,高分子化合物易发生继续聚合或者降解,导致电池内阻改变,进而影响锂电池的使用安全性、稳定性和寿命。三(三甲硅基)亚磷酸酯(TMSPi)能够抑制锂电池内含有的高分子化合物发生上述反应,可以有效的延长锂电池的循环性能。
三(三甲硅基)亚磷酸酯(TMSPi)目前文献报道的技术路线,均存在反应选择性不高,产品分离困难,三废多等问题。这些技术路线均使用了氯代物作为反应原料或助剂,产品氯离子残留超标,不满足锂电池使用要求。
发明内容
本发明的目的在于克服现有技术中的缺陷,提供一种三(三甲硅基)亚磷酸酯的制备方法。
本发明通过下述方案实现:
一种三(三甲硅基)亚磷酸酯的制备方法,包括以下步骤:冰水浴下,将亚磷酸和六甲基二硅氮烷投入反应器中,搅拌1h,投入有机碱,于0-150℃下反应0-24h,反应结束后,常压蒸馏回收原料六甲基二硅氮烷,减压蒸馏得三(三甲硅基)亚磷酸酯产品。
所述亚磷酸、六甲基二硅氮烷、有机碱的投料摩尔比为1:(1.0-6.0):(1.0-4.0)。
所述亚磷酸、六甲基二硅氮烷、有机碱的投料摩尔比为1:(2.0~6.0):(1.0~2.5)。
所述有机碱为钠氢、乙醇钠、叔丁醇钾、正丁基锂、二异丙基氨基锂、三乙胺、二乙胺、吗啉、哌啶、吡啶、DMAP、DBU、胆碱、四乙基氢氧化铵中的一种。
所述有机碱为钠氢、三乙胺、DMAP中的一种。
所述反应温度为80-130℃,所述反应时间为8-12h。
本发明的有益效果为:
本发明一种三(三甲硅基)亚磷酸酯的制备方法采用的原料均为价格低廉的市售化工原料,原料毒性、腐蚀性较小,提高了生产的安全性,同时降低了原料成本和设备投资。反应的选择性90%以上,GC检测只生成产品和副产氨气,没有其他含磷产物,产品的氯离子残留量低于10ppm,满足锂电池应用要求。
具体实施方式
下面结合具体实施例对本发明进一步说明:
一种三(三甲硅基)亚磷酸酯的制备方法,包括以下步骤:冰水浴下,将亚磷酸和六甲基二硅氮烷投入反应器中,搅拌1h,投入有机碱,于0-150℃下反应0-24h,反应结束后,常压蒸馏回收原料六甲基二硅氮烷,减压蒸馏得三(三甲硅基)亚磷酸酯产品。
所述亚磷酸、六甲基二硅氮烷、有机碱的投料摩尔比为1:(1.0-6.0):(1.0-4.0)。
所述亚磷酸、六甲基二硅氮烷、有机碱的投料摩尔比为1:(2.0~6.0):(1.0~2.5)。
所述有机碱为钠氢、乙醇钠、叔丁醇钾、正丁基锂、二异丙基氨基锂、三乙胺、二乙胺、吗啉、哌啶、吡啶、DMAP、DBU、胆碱、四乙基氢氧化铵中的一种。
所述有机碱为钠氢、三乙胺、DMAP中的一种。
所述反应温度为80-130℃,所述反应时间为8-12h。
下面结合具体的实施例对本申请做进一步阐述。
实施例1:
冰水浴(0~4℃)下,将20.5g(0.25mol)亚磷酸、161.4g(1mol)六甲基二硅氮烷投入500ml三口烧瓶中,搅拌2小时使亚磷酸充分溶解,往烧瓶中加入30.5g(0.25mol)DMAP。升温至130℃下反应16h。反应结束后,126℃常压蒸馏回收六甲基二硅氮烷,减压蒸馏(124℃,5000pa)得三(三甲硅基)亚磷酸酯69.4g,GC纯度99.32%,收率93.8%,氯离子含量7.6ppm,重金属离子未检出。
实施例2:
冰水浴(0~4℃)下,将10.25g(0.125mol)亚磷酸、124.04g(0.75mol)六甲基二硅氮烷投入500ml三口烧瓶中,搅拌2小时使亚磷酸充分溶解,往烧瓶中加入6g(0.25mol)钠氢。升温至150℃下反应12h。反应结束后,126℃常压蒸馏回收六甲基二硅氮烷,减压蒸馏(113℃,2500pa)得三(三甲硅基)亚磷酸酯35.4g,GC纯度99.70%,收率以95.4%计,氯离子含量5.3ppm,重金属离子未检出。
实施例3:
冰水浴(0~4℃)下,将19.94g(0.249mol)亚磷酸、157.0g(0.973mol)六甲基二硅氮烷投入500ml三口烧瓶中,搅拌2小时使亚磷酸充分溶解,往烧瓶中加入15g(0.25mol)钠氢。升温至150℃下反应12h。反应结束后,126℃常压蒸馏回收六甲基二硅氮烷,减压蒸馏(113℃,2500pa)得三(三甲硅基)亚磷酸酯70g,GC纯度99.52%,收率以94.8%计,氯离子含量2.7ppm,重金属离子未检出。
本发明申请采取的技术路线得到三(三甲硅基)亚磷酸酯,选择性在90%以上,纯度99%以上,游离氢含量低于20ppm,能够满足锂电池电解液使用要求。本发明采取得技术路线,避免了常规路线采用的三氯化磷原料,提高了生产的安全性,减少了三废污染,适合规模化生产。
尽管已经对本发明的技术方案做了较为详细的阐述和列举,应当理解,对于本领域技术人员来说,对上述实施例做出修改或者采用等同的替代方案,这对本领域的技术人员而言是显而易见,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (1)
1.一种三(三甲硅基)亚磷酸酯的制备方法,其特征在于,包括以下步骤:冰水浴下,将亚磷酸和六甲基二硅氮烷投入反应器中,搅拌2h,投入碱,于130℃下反应16h或150℃下反应12h,反应结束后,常压蒸馏回收原料六甲基二硅氮烷,减压蒸馏得三(三甲硅基)亚磷酸酯产品;
所述亚磷酸、六甲基二硅氮烷、碱的投料摩尔比为1:(2.0~6.0):(1.0~2.5);所述碱为钠氢或DMAP。
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