{"title":"锂硼酸利乐(pentafluorophenyl)","authors":"Katsunori Tanaka, K. Fukase","doi":"10.1002/047084289X.RN00752","DOIUrl":null,"url":null,"abstract":"[2797-28-6] C24BF20Li (MW 685.98) \n \n \n \n \n \nInChI = 1S/C24BF20.Li/c26-5-1(6(27)14(35)21(42)13(5)34)25(2-7(28)15(36)22(43)16(37)8(2)29,3-9(30)17(38)23(44)18(39)10(3)31)4-11(32)19(40)24(45)20(41)12(4)33;/q-1;+1 \n \n \n \nInChIKey = WTTFKRRTEAPVBI-UHFFFAOYSA-N \n \n \n \n(reagent especially used for generating “free” acid catalysts with a noncoordinating (C6F5)4B− ligand) \n \n \n \nAlternative Name: lithium tetrakis(pentafluorophenyl)borate. \n \n \n \nPhysical Data: mp 120–124 °C (measured for diethylether complex, LiB(C6F5)4·2.5(Et2O)). \n \n \n \nSolubility: soluble in diethyl ether, MeOH, and H2O. \n \n \n \nForm Supplied in: commercially available as a diethyl ether complex (white powder). \n \n \n \nAnalysis of Reagent Purity: IR, elemental analysis. \n \n \n \nPreparative Methods and Purification: LiB(C6F5)4 1 is prepared by the reaction of tris(pentafluorophenyl)borane [B(C6F5)3] with lithium pentafluorobenzene (LiC6F5) in pentane at −78 °C.1, 2 Filtration of the white precipitate provides the salt 1 (white powder) sufficiently pure for elemental analysis. LiC6F5 is prepared from bromopentafluorobenzene (BrC6F5) and n-BuLi in pentane. \n \n \n \nHandling, Storage, and Precautions: should be stored in a dry, dark, and cold place. Not to be exposed to oxidants, acids, and bases.","PeriodicalId":11669,"journal":{"name":"Encyclopedia of Reagents for Organic Synthesis","volume":"40 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2007-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Lithium Tetra(pentafluorophenyl)borate\",\"authors\":\"Katsunori Tanaka, K. Fukase\",\"doi\":\"10.1002/047084289X.RN00752\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"[2797-28-6] C24BF20Li (MW 685.98) \\n \\n \\n \\n \\n \\nInChI = 1S/C24BF20.Li/c26-5-1(6(27)14(35)21(42)13(5)34)25(2-7(28)15(36)22(43)16(37)8(2)29,3-9(30)17(38)23(44)18(39)10(3)31)4-11(32)19(40)24(45)20(41)12(4)33;/q-1;+1 \\n \\n \\n \\nInChIKey = WTTFKRRTEAPVBI-UHFFFAOYSA-N \\n \\n \\n \\n(reagent especially used for generating “free” acid catalysts with a noncoordinating (C6F5)4B− ligand) \\n \\n \\n \\nAlternative Name: lithium tetrakis(pentafluorophenyl)borate. \\n \\n \\n \\nPhysical Data: mp 120–124 °C (measured for diethylether complex, LiB(C6F5)4·2.5(Et2O)). \\n \\n \\n \\nSolubility: soluble in diethyl ether, MeOH, and H2O. \\n \\n \\n \\nForm Supplied in: commercially available as a diethyl ether complex (white powder). \\n \\n \\n \\nAnalysis of Reagent Purity: IR, elemental analysis. \\n \\n \\n \\nPreparative Methods and Purification: LiB(C6F5)4 1 is prepared by the reaction of tris(pentafluorophenyl)borane [B(C6F5)3] with lithium pentafluorobenzene (LiC6F5) in pentane at −78 °C.1, 2 Filtration of the white precipitate provides the salt 1 (white powder) sufficiently pure for elemental analysis. LiC6F5 is prepared from bromopentafluorobenzene (BrC6F5) and n-BuLi in pentane. \\n \\n \\n \\nHandling, Storage, and Precautions: should be stored in a dry, dark, and cold place. Not to be exposed to oxidants, acids, and bases.\",\"PeriodicalId\":11669,\"journal\":{\"name\":\"Encyclopedia of Reagents for Organic Synthesis\",\"volume\":\"40 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Encyclopedia of Reagents for Organic Synthesis\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/047084289X.RN00752\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Encyclopedia of Reagents for Organic Synthesis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/047084289X.RN00752","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
[2797-28-6] C24BF20Li (MW 685.98)
InChI = 1S/C24BF20.Li/c26-5-1(6(27)14(35)21(42)13(5)34)25(2-7(28)15(36)22(43)16(37)8(2)29,3-9(30)17(38)23(44)18(39)10(3)31)4-11(32)19(40)24(45)20(41)12(4)33;/q-1;+1
InChIKey = WTTFKRRTEAPVBI-UHFFFAOYSA-N
(reagent especially used for generating “free” acid catalysts with a noncoordinating (C6F5)4B− ligand)
Alternative Name: lithium tetrakis(pentafluorophenyl)borate.
Physical Data: mp 120–124 °C (measured for diethylether complex, LiB(C6F5)4·2.5(Et2O)).
Solubility: soluble in diethyl ether, MeOH, and H2O.
Form Supplied in: commercially available as a diethyl ether complex (white powder).
Analysis of Reagent Purity: IR, elemental analysis.
Preparative Methods and Purification: LiB(C6F5)4 1 is prepared by the reaction of tris(pentafluorophenyl)borane [B(C6F5)3] with lithium pentafluorobenzene (LiC6F5) in pentane at −78 °C.1, 2 Filtration of the white precipitate provides the salt 1 (white powder) sufficiently pure for elemental analysis. LiC6F5 is prepared from bromopentafluorobenzene (BrC6F5) and n-BuLi in pentane.
Handling, Storage, and Precautions: should be stored in a dry, dark, and cold place. Not to be exposed to oxidants, acids, and bases.
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