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二乙酸碘苯

二乙酸碘苯(PIDA)是化学式C
6
H
5
I(OCOCH
3
)
2
超价碘化合物英语Hypervalent iodine,在有机化学中用作氧化剂

二乙酸碘苯
IUPAC名
Phenyl-λ3-iodanediyl diacetate
别名 I,I-二乙酰氧基碘苯
PIDA
识别
CAS号 3240-34-4
PubChem 76724
ChemSpider 69182
SMILES
 
  • CC(=O)OI(C1=CC=CC=C1)OC(=O)C
InChI
 
  • 1S/C10H11IO4/c1-8(12)14-11(15-9(2)13)10-6-4-3-5-7-10/h3-7H,1-2H3
InChIKey ZBIKORITPGTTGI-UHFFFAOYSA-N
性质
化学式 C10H11IO4
摩尔质量 322.1 g·mol−1
外观 白色粉末
熔点 163-165 °C(436-438 K)
溶解性 反应
溶解性 可溶于乙酸、乙腈和二氯甲烷
结构
晶体结构 正交晶系
空间群 Pnn2
晶格常数 a = 15.693(3) Å, b = 8.477(2) Å, c = 8.762(2) Å
分子构型 T形分子构型英语T-shaped molecular geometry
相关物质
相关化学品 二(三氟乙酸)碘苯
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

制备 编辑

二乙酸碘苯最早是由康拉德·威尔格罗德英语Conrad Willgerodt于1892年[1]通过碘苯乙酸过氧乙酸的混合物反应而成的:[2][3]

C6H5I   +   CH3CO3H   +   CH3CO2H   →   C6H5I(O2CCH3)2   +   H2O

PIDA也可以由亚碘酰苯英语iodosobenzene冰醋酸反应而成:[3]

C6H5IO   +   2 CH3CO2H   →   C6H5I(O2CCH3)2   +   H2O

二乙酸碘苯最近的合成方式是直接由、乙酸和再加上作为氧化剂的过硼酸钠[4]过二硫酸钾[5]一起反应而成:[6]

C6H6   +   I2   +   2 CH3CO2H   +   K2S2O8   →   C6H5I(O2CCH3)2   +   KI   +   H2SO4   +   KHSO4

结构 编辑

PIDA分子是超价分子,它的碘原子形成了三个共价键[7]这个分子呈T形分子构型英语T-shaped molecular geometry,其中苯基占据水平位置,而乙酰氧基占据轴向位置,C-I-O键角低于90°。[8]二乙酸碘苯的晶体结构是正交晶系,空间群 Pnn2。[8][9]

反应 编辑

PIDA可通过乙酰氧基的取代反应制备结构相似的试剂。举个例子,它在三氟乙酸中加热反应,可以得到二(三氟乙酸)碘苯(PIFA):[10][6]

 

产物PIFA则可以使酰胺在弱酸性环境[11],而不是以前需要的强碱性环境下发生霍夫曼降解反应[12][13]N-保护的天冬酰胺可以用PIDA脱羰,这可用于合成β-氨基-L-丙氨酸衍生物。[14]

PIDA也可用于Suárez氧化反应中,这个反应可以把醇光解成环醚。[15][16][17]这个反应被用于数个全合成中,如(−)-majucin、(−)-Jiadifenoxolane A[18]和cephanolide A的全合成。[19]

参考资料 编辑

  1. ^ Willgerodt, C. . Chem. Ber. 1892, 25 (2): 3494–3502 [2022-08-24]. doi:10.1002/cber.189202502221. (原始内容存档于2022-05-24) (德语). 
  2. ^ (1963) "Iodosobenzene Diacetate". Org. Synth. 43: 62; Coll. Vol. 5: 660. 
  3. ^ 3.0 3.1 Moriarty, Robert M.; Chany, Calvin J.; Kosmeder, Jerome W.; Du Bois, Justin. (Diacetoxyiodo)benzene. Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons. 2001. ISBN 9780470842898. doi:10.1002/047084289x.rd005m.pub2. 
  4. ^ Hossain, Md. Delwar; Kitamura, Tsugio. Unexpected, Drastic Effect of Triflic Acid on Oxidative Diacetoxylation of Iodoarenes by Sodium Perborate. A Facile and Efficient One-Pot Synthesis of (Diacetoxyiodo)arenes. J. Org. Chem. 2005, 70 (17): 6984–6986. PMID 16095332. doi:10.1021/jo050927n. 
  5. ^ Hossain, Md. Delwar; Kitamura, Tsugio. New and Direct Approach to Hypervalent Iodine Compounds from Arenes and Iodine. Straightforward Synthesis of (Diacetoxyiodo)arenes and Diaryliodonium Salts Using Potassium μ-Peroxo-hexaoxodisulfate. Bull. Chem. Soc. Jpn. 2007, 80 (11): 2213–2219. doi:10.1246/bcsj.80.2213. 
  6. ^ 6.0 6.1 Dohi, Toshifumi; Kita, Yasuyuki. Oxidizing Agents. Kaiho, Tatsuo (编). Iodine Chemistry and Applications. John Wiley & Sons. 2015: 277–302. ISBN 9781118878651. 
  7. ^ Dohi, Toshifumi; Kita, Yasuyuki. Hypervalent Iodine. Kaiho, Tatsuo (编). Iodine Chemistry and Applications. John Wiley & Sons. 2015: 103–158. ISBN 9781118878651. 
  8. ^ 8.0 8.1 Lee, Chow-Kong; Mak, Thomas C. W.; Li, Wai-Kee; Kirner, John F. Iodobenzene diacetate. Acta Crystallogr. B. 1977, 33 (5): 1620–1622. doi:10.1107/S0567740877006694 . 
  9. ^ Alcock, Nathaniel W.; Countryman, Rachel M.; Esperås, Steinar; Sawyer, Jeffery F. Secondary bonding. Part 5. The crystal and molecular structures of phenyliodine(III) diacetate and bis(dichloroacetate). J. Chem. Soc., Dalton Trans. 1979, 1979 (5): 854–860. doi:10.1039/DT9790000854. 
  10. ^ (1988) "Hofmann Rearrangement Under Mildly Acidic Conditions Using [I,I-Bis(Trifluoroacetoxy)Iodobenzene: Cyclobutylamine Hydrochloride from Cyclobutanecarboxamide]". Org. Synth. 66; Coll. Vol. 8: 132. 
  11. ^ Aubé, Jeffrey; Fehl, Charlie; Liu, Ruzhang; McLeod, Michael C.; Motiwala, Hashim F. 6.15 Hofmann, Curtius, Schmidt, Lossen, and Related Reactions. Heteroatom Manipulations. Comprehensive Organic Synthesis II 6. 2014: 598–635. ISBN 9780080977430. doi:10.1016/B978-0-08-097742-3.00623-6. 
  12. ^ Wallis, Everett S.; Lane, John F. The Hofmann Reaction. Org. React. 1946, 3 (7): 267–306. doi:10.1002/0471264180.or003.07. 
  13. ^ Surrey, Alexander R. Hofmann Reaction. Name Reactions in Organic Chemistry 2nd. Academic Press. 1961: 134–136. ISBN 9781483258683. 
  14. ^ Zhang, Lin-hua; Kauffman, Goss S.; Pesti, Jaan A.; Yin, Jianguo. Rearrangement of Nα-Protected L-Asparagines with Iodosobenzene Diacetate. A Practical Route to β-Amino-L-alanine Derivatives. J. Org. Chem. 1997, 62 (20): 6918–6920. doi:10.1021/jo9702756. 
  15. ^ Concepción, José I.; Francisco, Cosme G.; Hernández, Rosendo; Salazar, José A.; Suárez, Ernesto. Intramolecular hydrogen abstraction. Iodosobenzene diacetate, an efficient and convenient reagent for alkoxy radical generation. Tetrahedron Letters. 1984, 25 (18): 1953–1956. doi:10.1016/S0040-4039(01)90085-1. 
  16. ^ Courtneidge, John L.; Lusztyk, Janusz; Pagé, Daniel. Alkoxyl radicals from alcohols. Spectroscopic detection of intermediate alkyl and acyl hypoiodites in the Suárez and Beebe reactions. Tetrahedron Letters. 1994, 35 (7): 1003–1006. doi:10.1016/S0040-4039(00)79950-3. 
  17. ^ Dorta, R. L.; Francisco, C.G.; Freire, R.; Suárez, E. Intramolecular hydrogen abstraction. The use of organoselenium reagents for the generation of alkoxy radicals. Tetrahedron Letters. 1988, 29 (42): 5429–5432. doi:10.1016/S0040-4039(00)82887-7. 
  18. ^ Condakes, Matthew L.; Hung, Kevin; Harwood, Stephen J.; Maimone, Thomas J. Total Syntheses of (−)-Majucin and (−)-Jiadifenoxolane A, Complex Majucin-Type Illicium Sesquiterpenes. Journal of the American Chemical Society. 2017, 139 (49): 17783–17786. doi:10.1021/jacs.7b11493. 
  19. ^ Qing, Zhineng; Mao, Peng; Wang, Tie; Zhai, Hongbin. Asymmetric Total Syntheses of Cephalotane-Type Diterpenoids Cephanolides A–D. Journal of the American Chemical Society. 2022, 144 (23): 10640–10646. doi:10.1021/jacs.2c03978. 

二乙酸碘苯, pida, 是化学式c6, ococh3, 的超价碘化合物, 英语, hypervalent, iodine, 在有机化学中用作氧化剂, iupac名phenyl, iodanediyl, diacetate别名, 二乙酰氧基碘苯pida识别cas号, 3240, 4pubchem, 76724chemspider, 69182smiles, cinchi, c10h11io4, 2h3inchikey, zbikoritpgttgi, uhfffaoysa, n性质化学式, c10h11io4摩尔质. 二乙酸碘苯 PIDA 是化学式C6 H5 I OCOCH3 2 的超价碘化合物 英语 Hypervalent iodine 在有机化学中用作氧化剂 二乙酸碘苯IUPAC名Phenyl l3 iodanediyl diacetate别名 I I 二乙酰氧基碘苯PIDA识别CAS号 3240 34 4PubChem 76724ChemSpider 69182SMILES CC O OI C1 CC CC C1 OC O CInChI 1S C10H11IO4 c1 8 12 14 11 15 9 2 13 10 6 4 3 5 7 10 h3 7H 1 2H3InChIKey ZBIKORITPGTTGI UHFFFAOYSA N性质化学式 C10H11IO4摩尔质量 322 1 g mol 1外观 白色粉末熔点 163 165 C 436 438 K 溶解性 水 反应溶解性 可溶于乙酸 乙腈和二氯甲烷结构晶体结构 正交晶系空间群 Pnn2晶格常数 a 15 693 3 A b 8 477 2 A c 8 762 2 A分子构型 T形分子构型 英语 T shaped molecular geometry 相关物质相关化学品 二 三氟乙酸 碘苯若非注明 所有数据均出自标准状态 25 100 kPa 下 目录 1 制备 2 结构 3 反应 4 参考资料制备 编辑二乙酸碘苯最早是由康拉德 威尔格罗德 英语 Conrad Willgerodt 于1892年 1 通过碘苯和乙酸与过氧乙酸的混合物反应而成的 2 3 C6H5I CH3CO3H CH3CO2H C6H5I O2CCH3 2 H2OPIDA也可以由亚碘酰苯 英语 iodosobenzene 和冰醋酸反应而成 3 C6H5IO 2 CH3CO2H C6H5I O2CCH3 2 H2O二乙酸碘苯最近的合成方式是直接由碘 乙酸和苯再加上作为氧化剂的过硼酸钠 4 或过二硫酸钾 5 一起反应而成 6 C6H6 I2 2 CH3CO2H K2S2O8 C6H5I O2CCH3 2 KI H2SO4 KHSO4结构 编辑PIDA分子是超价分子 它的碘原子形成了三个共价键 7 这个分子呈T形分子构型 英语 T shaped molecular geometry 其中苯基占据水平位置 而乙酰氧基占据轴向位置 C I O键角低于90 8 二乙酸碘苯的晶体结构是正交晶系 空间群 Pnn2 8 9 反应 编辑PIDA可通过乙酰氧基的取代反应制备结构相似的试剂 举个例子 它在三氟乙酸中加热反应 可以得到二 三氟乙酸 碘苯 PIFA 10 6 nbsp 产物PIFA则可以使酰胺在弱酸性环境 11 而不是以前需要的强碱性环境下发生霍夫曼降解反应 12 13 N 保护的天冬酰胺可以用PIDA脱羰 这可用于合成b 氨基 L 丙氨酸衍生物 14 PIDA也可用于Suarez氧化反应中 这个反应可以把醇光解成环醚 15 16 17 这个反应被用于数个全合成中 如 majucin Jiadifenoxolane A 18 和cephanolide A的全合成 19 参考资料 编辑 Willgerodt C Zur Kenntniss aromatischer Jodidchloride des Jodoso und Jodobenzols Chem Ber 1892 25 2 3494 3502 2022 08 24 doi 10 1002 cber 189202502221 原始内容存档于2022 05 24 德语 1963 Iodosobenzene Diacetate Org Synth 43 62 Coll Vol 5 660 3 0 3 1 Moriarty Robert M Chany Calvin J Kosmeder Jerome W Du Bois Justin Diacetoxyiodo benzene Encyclopedia of Reagents for Organic Synthesis John Wiley amp Sons 2001 ISBN 9780470842898 doi 10 1002 047084289x rd005m pub2 Hossain Md Delwar Kitamura Tsugio Unexpected Drastic Effect of Triflic Acid on Oxidative Diacetoxylation of Iodoarenes by Sodium Perborate A Facile and Efficient One Pot Synthesis of Diacetoxyiodo arenes J Org Chem 2005 70 17 6984 6986 PMID 16095332 doi 10 1021 jo050927n Hossain Md Delwar Kitamura Tsugio New and Direct Approach to Hypervalent Iodine Compounds from Arenes and Iodine Straightforward Synthesis of Diacetoxyiodo arenes and Diaryliodonium Salts Using Potassium m Peroxo hexaoxodisulfate Bull Chem Soc Jpn 2007 80 11 2213 2219 doi 10 1246 bcsj 80 2213 6 0 6 1 Dohi Toshifumi Kita Yasuyuki Oxidizing Agents Kaiho Tatsuo 编 Iodine Chemistry and Applications John Wiley amp Sons 2015 277 302 ISBN 9781118878651 Dohi Toshifumi Kita Yasuyuki Hypervalent Iodine Kaiho Tatsuo 编 Iodine Chemistry and Applications John Wiley amp Sons 2015 103 158 ISBN 9781118878651 8 0 8 1 Lee Chow Kong Mak Thomas C W Li Wai Kee Kirner John F Iodobenzene diacetate Acta Crystallogr B 1977 33 5 1620 1622 doi 10 1107 S0567740877006694 nbsp Alcock Nathaniel W Countryman Rachel M Esperas Steinar Sawyer Jeffery F Secondary bonding Part 5 The crystal and molecular structures of phenyliodine III diacetate and bis dichloroacetate J Chem Soc Dalton Trans 1979 1979 5 854 860 doi 10 1039 DT9790000854 1988 Hofmann Rearrangement Under Mildly Acidic Conditions Using I I Bis Trifluoroacetoxy Iodobenzene Cyclobutylamine Hydrochloride from Cyclobutanecarboxamide Org Synth 66 Coll Vol 8 132 Aube Jeffrey Fehl Charlie Liu Ruzhang McLeod Michael C Motiwala Hashim F 6 15 Hofmann Curtius Schmidt Lossen and Related Reactions Heteroatom Manipulations Comprehensive Organic Synthesis II 6 2014 598 635 ISBN 9780080977430 doi 10 1016 B978 0 08 097742 3 00623 6 Wallis Everett S Lane John F The Hofmann Reaction Org React 1946 3 7 267 306 doi 10 1002 0471264180 or003 07 Surrey Alexander R Hofmann Reaction Name Reactions in Organic Chemistry 2nd Academic Press 1961 134 136 ISBN 9781483258683 Zhang Lin hua Kauffman Goss S Pesti Jaan A Yin Jianguo Rearrangement of Na Protected L Asparagines with Iodosobenzene Diacetate A Practical Route to b Amino L alanine Derivatives J Org Chem 1997 62 20 6918 6920 doi 10 1021 jo9702756 Concepcion Jose I Francisco Cosme G Hernandez Rosendo Salazar Jose A Suarez Ernesto Intramolecular hydrogen abstraction Iodosobenzene diacetate an efficient and convenient reagent for alkoxy radical generation Tetrahedron Letters 1984 25 18 1953 1956 doi 10 1016 S0040 4039 01 90085 1 Courtneidge John L Lusztyk Janusz Page Daniel Alkoxyl radicals from alcohols Spectroscopic detection of intermediate alkyl and acyl hypoiodites in the Suarez and Beebe reactions Tetrahedron Letters 1994 35 7 1003 1006 doi 10 1016 S0040 4039 00 79950 3 Dorta R L Francisco C G Freire R Suarez E Intramolecular hydrogen abstraction The use of organoselenium reagents for the generation of alkoxy radicals Tetrahedron Letters 1988 29 42 5429 5432 doi 10 1016 S0040 4039 00 82887 7 Condakes Matthew L Hung Kevin Harwood Stephen J Maimone Thomas J Total Syntheses of Majucin and Jiadifenoxolane A Complex Majucin Type Illicium Sesquiterpenes Journal of the American Chemical Society 2017 139 49 17783 17786 doi 10 1021 jacs 7b11493 Qing Zhineng Mao Peng Wang Tie Zhai Hongbin Asymmetric Total Syntheses of Cephalotane Type Diterpenoids Cephanolides A D Journal of the American Chemical Society 2022 144 23 10640 10646 doi 10 1021 jacs 2c03978 取自 https zh wikipedia org w index php title 二乙酸碘苯 amp oldid 75949039, 维基百科,wiki,书籍,书籍,图书馆,

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