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有机试剂

从公元初到19世纪中叶,主要利用天然有机物(如动植物的提取液)进行定性或定量分析。自19世纪下半叶至20世纪20年代,开始有了人工合成的有机试剂,例如乙黄原酸钾用于检验镍、铜、钼;桑色素用于检测铝;重氮偶合反应用于检测亚硝酸根;α-亚硝基-β-萘酚用于检测钴;丁二肟用于检验镍等。30年代提出特效基团后,在50年代末又提出了分析功能团理论,人们为了寻找不同离子的特效分析功能团,进行了大量有机试剂筛选工作,合成了许多具有实用价值的试剂(如铜试剂、新铜试剂、镉试剂、铍试剂、钍试剂等)。在50年代以前,络合物主要用于二元螯合物沉淀反应的定性检出、沉淀分离和重量分析。从50至60年代初,以络合滴定法为主,自60年代后期开始重点转向光度分析,并发展了螯合物有机溶剂萃取技术。8-羟基喹啉、腙类、肟类、羟肟酸类、多元酚类、1,10-邻二氮菲类、磷氧类萃取剂、β-二酮类、三苯基甲烷类酸性染料、呫吨类和偶氮染料等各类试剂得到广泛应用。同时,有机试剂的结构理论研究(如电子效应、空间效应、取代基的影响)促进了新型有机试剂的开发,例如杂环偶氮类试剂。这一时期还发展了单偶氮变色酸类和双偶氮变色酸类试剂。70年代中期,吸附剂和螯合树脂得到迅速发展。80年代以来,中国分析化学工作者在不对称双偶氮变色酸类试剂的合成与应用方面也取得了成果。

有机试剂广泛应用于分析化学领域,主要用于溶剂、沉淀剂、络合剂、指示剂、显色剂以及表面活性剂等方面。为了满足不同分析需求,有时需对某种试剂进行纯化处理,液体有机试剂常采用蒸馏法提纯,固体物质则通过结晶或升华方法纯化。具有高蒸气压的有机试剂通常采用常压蒸馏;而对于难挥发和微溶于水的有机试剂,则可使用减压蒸馏或水蒸气蒸馏。

蒸馏法是实验室中常用的有机试剂纯化方法,常见的蒸馏装置包括蒸馏器、冷凝器和接受器三部分,辅助设备还包括加热器、温度计、接液管、软木塞等。

中文名称 英文名称 CAS号 化学式 结构式图片
(+)-3,9-二溴茨酮 (+)-endo-3,9-dibromocamphor 10293-10-4 C10H14Br2O
(+)-3,9-二溴茨酮
(+)-2-蒈烯 2-carene 4497-92-1 C10H16
(+)-2-蒈烯
(+)-1,2-双[(2R,5R)-2,5-二异丙基磷]苯 (R,R)-iPr-DUPHOS 136705-65-2 C26H44P2
(+)-1,2-双[(2R,5R)-2,5-二异丙基磷]苯
(+)-1,2-双(2S,5S)-二乙基环丁磷烷苯(环辛二烯)三氟甲磺 1,2-Bis[(2S,5S)-2,5-diethylphospholano]benzene(1,5-cyclooctadiene)rhodium(I) trifluoromethanesulfonate 142184-30-3 C31H48F3O3P2RhS-
(+)-1,2-双(2S,5S)-二乙基环丁磷烷苯(环辛二烯)三氟甲磺
(+)-1,2-双((2S,5S)-2,5-二苯基膦)乙烷 (S,S)-Ph-BPE 824395-67-7 C34H36P2
(+)-1,2-双((2S,5S)-2,5-二苯基膦)乙烷
(+)-1,2-双((2S,5S)-2,5-二乙基磷)苯 (S,S)-Et-duphos 136779-28-7 C22H36P2
(+)-1,2-双((2S,5S)-2,5-二乙基磷)苯
(+)-1,2-双((2R,5R)-2,5-二乙磷酰亚基)苯 (+)-1,2-bis((2R,5R)-2,5-dimethylphospholano)ethane 129648-07-3 C14H28P2
(+)-1,2-双((2R,5R)-2,5-二乙磷酰亚基)苯
(+)-(18-冠醚-6)-2,3,11,12-四甲酸 (2R,3R,11R,12R)-(+)-18-crown-6-2,3,11,12-tetracarbonic acid 61696-54-6 C16H24O14
(+)-(18-冠醚-6)-2,3,11,12-四甲酸
(+)- B -甲氧基二异松莰基硼烷 methoxy-bis[(2S,3R)-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]borane 99438-28-5 C21H37BO
(+)- B -甲氧基二异松莰基硼烷
((氯二氟甲基)磺酰基)苯 chlorodifluoromethyl phenyl sulfone 930836-30-9 C7H5ClF2O2S
((氯二氟甲基)磺酰基)苯
((1S,3R)-3-氨基环己基)氨基甲酸叔丁酯 tert-butyl ((1S,3R)-3-aminocyclohexyl)carbamate 1298101-47-9 C11H22N2O2
((1S,3R)-3-氨基环己基)氨基甲酸叔丁酯
((1-(氰甲基)环己基)甲基)氨基甲酸叔丁酯 (1-cyanomethyl-cyclohexylmethyl)-carbamic acid tert-butyl ester 227626-62-2 C14H24N2O2
((1-(氰甲基)环己基)甲基)氨基甲酸叔丁酯
—— Benzyl 3-(2-ethoxy-2-oxoethyl)-3-methylpiperazine-1-carboxylate 1115390-13-0 C17H24N2O4
Benzyl 3-(2-ethoxy-2-oxoethyl)-3-methylpiperazine-1-carboxylate
—— cefepime 133162-90-0 C19H24N6O5S2
cefepime
—— (+)-Chloromethyl isomenthyl ether 144177-48-0 C11H21ClO
(+)-Chloromethyl isomenthyl ether
—— 538-51-2 C13H11N
—— (S)-Walphos 387868-06-6 C46H32F12FeP2
(S)-Walphos
—— 1-methylphosphole 17167-23-6 C5H7P
1-methylphosphole
—— Sodium dibutylnaphthalenesulfonate 25417-20-3 C18H23NaO3S
Sodium dibutylnaphthalenesulfonate
—— 1-(3-chloroprop-1-ynyl)cyclohexanol 13280-11-0 C9H13ClO
1-(3-chloroprop-1-ynyl)cyclohexanol
—— diphenyl p-phenylenediamine 74-31-7 C18H16N2
diphenyl p-phenylenediamine
—— 3-trifluoromethylphenyl(phenyl)iodonium tetrafluoroborate 1034926-48-1 BF4*C13H9F3I
3-trifluoromethylphenyl(phenyl)iodonium tetrafluoroborate
—— S-alpine-borane 42371-63-1 C18H31B
S-alpine-borane
—— tert-butyl 2-(5-fluoro-2-nitrophenyl)acetate 120542-03-2 C12H14FNO4
tert-butyl 2-(5-fluoro-2-nitrophenyl)acetate
—— 1,2:3,4-Di-O-isopropyliden-α-D-galaktopyranose-6-(isopropylsulfat) 53209-14-6 C15H26O9S
1,2:3,4-Di-O-isopropyliden-α-D-galaktopyranose-6-(isopropylsulfat)
—— 2-(2-dicyclohexylphosphanylphenyl)-N,N-dimethylaniline;methanesulfonate;palladium(2+);2-phenylaniline 1445085-87-9 C13H13NO3PdS*C26H36NP
2-(2-dicyclohexylphosphanylphenyl)-N,N-dimethylaniline;methanesulfonate;palladium(2+);2-phenylaniline
—— ethyl 2-O-benzoyl-4,6-O-benzylidene-3-O-(2-methylnaphthyl)-1-thio-β-D-glucopyranoside 352008-11-8 C33H32O6S
ethyl 2-O-benzoyl-4,6-O-benzylidene-3-O-(2-methylnaphthyl)-1-thio-β-D-glucopyranoside
—— 2-iodo-5-chlorobiphenyl 4510-79-6 C12H8ClI
2-iodo-5-chlorobiphenyl
—— tert-butyl hept-6-yn-1-ylcarbamate 1192373-48-0 C12H21NO2
tert-butyl hept-6-yn-1-ylcarbamate
—— 9-(5-amino-2,3,5-trideoxy-β-D-glycero-pent-2-enofuranosyl)adenine 62748-93-0 C10H12N6O
9-(5-amino-2,3,5-trideoxy-β-D-glycero-pent-2-enofuranosyl)adenine
—— (4S,5S)-1,3-bis(2,6-dimethylphenyl)-4,5-diphenyl-4,5-dihydro-1H-imidazol-3-ium tetrafluoroborate 1033618-43-7 BF4*C31H31N2
(4S,5S)-1,3-bis(2,6-dimethylphenyl)-4,5-diphenyl-4,5-dihydro-1H-imidazol-3-ium tetrafluoroborate
—— Holmium, tris(eta5-2,4-cyclopentadien-1-yl)- 1272-22-6 C15H15Ho
Holmium, tris(eta5-2,4-cyclopentadien-1-yl)-
—— 6059-26-3 C7H9CaN3O4S
—— 2-Ethyl-5-methoxybenzenesulfonyl chloride 1351416-48-2 C9H11ClO3S
2-Ethyl-5-methoxybenzenesulfonyl chloride
—— <4-Carboxy-phenyl>-trifluormethyl-selenid 15875-70-4 C8H5F3O2Se
<4-Carboxy-phenyl>-trifluormethyl-selenid
—— dl-Bis-(α-methyl-benzyl)-sulfid 838-59-5 C16H18S
dl-Bis-(α-methyl-benzyl)-sulfid
—— (2R)-N-tert-butoxycarbonyl-2-[(1'R)-1',2'-dihydroxyethyl]-pyrrolidine 1238752-87-8 C11H21NO4
(2R)-N-tert-butoxycarbonyl-2-[(1'R)-1',2'-dihydroxyethyl]-pyrrolidine
—— 2-ethoxy-8-nitro-6-(trifluoromethyl)-4H-benzo[e][1,3]thiazin-4-one 1104812-34-1 C11H7F3N2O4S
2-ethoxy-8-nitro-6-(trifluoromethyl)-4H-benzo[e][1,3]thiazin-4-one
—— 1-<N-(2-Methylphenyl)benzimidoyl>-2-naphthol 132377-99-2 C24H19NO
1-<N-(2-Methylphenyl)benzimidoyl>-2-naphthol
—— 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)furo[2,3-b]pyridine 1251728-92-3 C13H16BNO3
5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)furo[2,3-b]pyridine
—— methyl 3-methyl-7-benzo<b>thiophenecarboxylate 130220-05-2 C11H10O2S
methyl 3-methyl-7-benzo<b>thiophenecarboxylate
—— Einecs 220-167-5 2650-17-1 C25H27N2NaO6S2
Einecs 220-167-5
—— dodecyldimethylammonio-1-methylethanesulfonate 14933-08-5 C17H37NO3S
dodecyldimethylammonio-1-methylethanesulfonate
—— (3aR,8aR)-4,4,8,8-tetrakis(3,5-bis(trifluoromethyl)phenyl)-2,2-dimethyl-6-phenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine 1418791-99-7 C45H25F24O4P
(3aR,8aR)-4,4,8,8-tetrakis(3,5-bis(trifluoromethyl)phenyl)-2,2-dimethyl-6-phenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine
—— 2-Methylquinoline-8-sulfonyl chloride 119373-30-7 C10H8ClNO2S
2-Methylquinoline-8-sulfonyl chloride
—— 40386-51-4 C26H20N2NaO6S2
—— [12]aneN4(OH2)2+ 71901-52-5 C8H24N4NiO2
[12]aneN4(OH2)2+
—— (3S)-2,3-dihydroxybutanedioic acid;ethyl piperidine-3-carboxylate 83602-38-4 C12H21NO8
(3S)-2,3-dihydroxybutanedioic acid;ethyl piperidine-3-carboxylate
—— tripotassium indigotrisulfonate 67627-18-3 C16H7N2O11S3*3K
tripotassium indigotrisulfonate
—— Methanesulfonic acid, 1,1,1-trifluoro-, 1,1'-(1R)-[1,1'-binaphthalene]-2,2'-diyl ester, stereoisomer 126613-06-7 C44H24F12O12S4
Methanesulfonic acid, 1,1,1-trifluoro-, 1,1'-(1R)-[1,1'-binaphthalene]-2,2'-diyl ester, stereoisomer