Hypervalent Iodine Property and Reactivity
Transcript of Hypervalent Iodine Property and Reactivity
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Hypervalent Iodine(III): Property and Reactivity
Penghao ChengDong Group SeminarOctober, 21st, 2015
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Structure and Nomenclature
Aryl‐ λ3‐iodanes: L‐I‐L : hypervalent bond with a pure 5p orbitalL I L : hypervalent bond with a pure 5p orbitalAr‐I : typical bond with sp2 hybridized orbital
Iodanes withAryl‐ λ5‐iodanesL‐I‐L : hypervalent bond with two pure 5 p orbitalsAr‐I : typical bond with sp hybridized orbital
Iodanes with oxidation state of IV or higher
generallyAr I : typical bond with sp hybridized orbital generally undergoes oxidative processes
Ochiai, Top. Curr. Chem. 2002, 224, 1.
processes
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Structure and Nomenclature
[N‐X‐L]
N: valence electron. X: central atom. L: ligand
[N X L]
λN: nonstandard bonding number
Ochiai, Top. Curr. Chem. 2002, 224, 1.
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General Reactivity PropertyLigand Exchange
Ochiai, Top. Curr. Chem. 2002, 224, 1.
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General Reactivity PropertyLigand Exchange
Ochiai, Top. Curr. Chem. 2002, 224, 1.
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General Reactivity PropertyHypernucleofuge: Reductive Elimination
Okuyama and Ochiai, J. Am. Chem. Soc. 1995, 117, 3360.Ochiai and Nagao, J. Chem. Soc., Chem. Commun. 1986, 1382.
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General Reactivity PropertyHypernucleofuge: Reductive Elimination
Okuyama and Ochiai, J. Am. Chem. Soc. 1995, 117, 3360.Ochiai and Nagao, J. Chem. Soc., Chem. Commun. 1986, 1382.
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General Reactivity PropertyHypernucleofuge: Reductive Elimination
Okuyama and Ochiai, J. Am. Chem. Soc. 1995, 117, 3360.Ochiai and Nagao, J. Chem. Soc., Chem. Commun. 1986, 1382.
Wiberg, J. Org. Chem. 1982, 47, 2720.
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General Reactivity PropertyPseudorotation of λ3‐Iodane
Berry, J. Chem. Phys. 1960, 32, 933.Ochiai, J. Am. Chem. Soc. 1990, 112, 5677.
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General Reactivity PropertyLigand Coupling on Iodine (III)
Weigand, J. Org. Chem. 1976, 41, 3360.Okawara, Bull. Chem. Soc. Jpn. 1974, 47, 3179.Okawara, Bull. Chem. Soc. Jpn. 1972, 45, 1860.
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General Reactivity PropertyLigand Coupling on Iodine (III)
Ochiai, J. Org. Chem. 1997, 62, 2130.
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General Reactivity PropertyElectronic Nature
Ochiai and Nagao, J. Chem. Soc., Chem. Commun. 1988, 1076.
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General Reactivity PropertyHomolytic Cleavage
Togo, Synlett. 2001, 565.Zhdankin, Rev. Heteroatom Chem. 1997, 17, 213.
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General Reactivity PropertyHomolytic Cleavage
Plesnicar, J. Am. Chem. Soc. 1968, 90, 4450.Ochiai, J. Am. Chem. Soc. 1992, 114, 6269.
Zhdankin, J. Am. Chem. Soc. 1996, 118, 5192.
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General Reactivity PropertySingle‐Electron Transfer
Kita, J. Am. Chem. Soc. 1994, 116, 3684.Kita, Tetrahedron 2001, 57, 345.
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General Reactivity Property
Transformation‐RIL2 Transformation‐R2ILOxidation to form Multiple BondsOxidation to form Multiple Bonds
Reductive Elimination with Substitution
Reductive Elimination with Rearrangement
Alkyl(aryl)‐IL
Alkenyl(aryl)‐ILReductive Elimination with Rearrangement
Activation of Multiple Bonds
Oxidative Dearomatization
Alkynyl(aryl)‐IL
Radical
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Preparation‐RIL2
INaClO, HCl
H2O, 20oC, 5 min ICl
ClArI ArI(OAc)2
Me Me
AcOOH, Ac2O
PhI(OAc)2 PhIO
RI
Me
OMe
RI(OH)OTs
Me
OMeNaOH, H2ORT, 3h
1) NaBO3, HOAc2) TsOH H2O
R R s
OH
PhI(OH)OTs PhI(OMe)OTs OI(Ph)OTs
HC(OMe)3
Zhang, Synthesis, 2009, 14, 2324.Dauban and Fleurat‐Lessard, J. Org. Chem., 2015, 80, 1414.
Saltzman, Org. Synth. Coll., 1973, 5, 660.Wirth, Eur. J. Org. Chem. 2001, 1569.
Koser, J. Am. Chem. Soc. 1990, 112, 5672.
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Transformation‐RIL2Oxidation to form Multiple Bonds
Kitamura, Heterocyclic Commun. 1998, 4, 205.Nagao, Tetrahedron Lett. 1988, 29, 6913.
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Transformation‐RIL2Oxidation to form Multiple Bonds
Kita, J. Chem. Soc., Chem. Commun. 1998, 173.Magnus, Synthesis. 1998, 547.
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Transformation‐RIL2Oxidation to form Multiple Bonds
Magnus, J. Am. Chem. Soc. 1992, 114, 767.Kiyokawa and Minakata, Angew. Chem. Int. Ed. 2015, 54, ASAP.
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Transformation‐RIL2Reductive Elimination with Substitution
Imamura, Bull. Chem. Soc. Jpn. 1978, 51, 335.Koser, J. Org. Chem. 1982, 47, 2487.
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Transformation‐RIL2Reductive Elimination with Substitution
Moriarty, Tetrahedron Lett. 1990, 31, 201.Hanaoka, Tetrahedron Lett. 1986, 27, 2023.
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Transformation‐RIL2Reductive Elimination with Substitution
Taschner and Koser, Tetrahedron Lett. 1986, 27, 4557.
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Transformation‐RIL2Reductive Elimination with Substitution
103
104
Wang, Synlett, 2009, 2529.Dong, Org. Lett. 2007, 9, 5345.
104
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Transformation‐RIL2Reductive Elimination with Rearrangement
Loudon, J. Org. Chem. 1984, 49, 4277.Tomasini, Org. Biomol. Chem. 2008, 6, 1849.
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Transformation‐RIL2Reductive Elimination with Rearrangement
77-91%
Ochiai and Fujita, J. Org. Chem. 1989, 54, 4832.
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Transformation‐RIL2Reductive Elimination with Rearrangement
Du and Zhao, Org. Lett. 2013, 15, 2906.
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Transformation‐RIL2Reductive Elimination with Rearrangement
Du and Zhao, Org. Lett. 2014, 16, 5772.
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Transformation‐RIL2Reductive Elimination with Rearrangement
Zhu, Chem. Commun. 2013, 49, 7352.Zhu, Org. Lett. 2013, 15, 3476.
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Transformation‐RIL2Reductive Elimination with Rearrangement
Antonchick, Angew. Chem. Int. Ed. 2014, 53, 8163.
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Transformation‐RIL2Activation of Multiple Bonds
Wirth, ChemistryOpen, 2012, 1, 245.
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Transformation‐RIL2Activation of Multiple Bonds
Moon, Tetrahedron Lett. 2013, 54, 2960.Wirth, Synthesis, 2012, 44, 1171.
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Transformation‐RIL2Activation of Multiple Bonds
Stuart, Angew. Chem. Int. Ed. 2015, 54, ASAP.
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Transformation‐RIL2Oxidative Dearomatization
Quideau, Tetrahedron 2010, 66, 2235.
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Transformation‐RIL2Oxidative Dearomatization
Fujioka and Kita, Chem. Commun. 2010, 46, 4133.
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Transformation‐RIL2Oxidative Dearomatization
Canesi, Org. Lett. 2009, 11, 4756.
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Transformation‐RIL2Oxidative Dearomatization
Canesi, Org. Lett. 2014, 16, 4928.
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Transformation‐RIL2Oxidative Dearomatization
NN
OArSO2HN
1.1 eq PhI(OAc)22.0 eq LiOAcCF3CH2OH20oC 10 min ArSO HN
HNO
NCO2MeN
OCO2Me
NH
HO
-20 C, 10 min20-25%
ArSO2HN OO
Br
NH O NH Br
Harran, Angew. Chem. Int. Ed. 2003, 42, 4961.
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Transformation‐RIL2Oxidative Dearomatization
Canesi, Chem. Eur. J. 2015, 21, ASAP.
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Transformation‐RIL2Radical
Suarez, Tetrahedron Lett. 1985, 26, 2493.Paquette, Tetrahedron Lett. 1997, 38, 195.
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Transformation‐RIL2Radical
Breslow, J. Am. Chem. Soc. 1991, 113, 8977.
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Transformation‐RIL2Radical
Pattenden, Tetrahedron Lett. 1993, 34, 127.Zhao and Du, J. Org. Chem. 2014, 79, 7451.
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Transformation‐RIL2Radical
Antonchick, Angew. Chem. Int. Ed. 2013, 52, 3267.
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Transformation‐RIL2Radical
Antonchick, Angew. Chem. Int. Ed. 2013, 52, 7985.
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Preparation‐R2IL
Fujita, Tetrahedron Lett. 1985, 4501.Stang, J. Am. Chem. Soc. 1994, 116, 93.
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Transformation‐R2ILAlkyl(aryl)‐IL
Reich, J. Am. Chem. Soc. 1978, 100, 4888.Magnus, J. Am. Chem. Soc. 1992, 114, 767.
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Transformation‐R2ILAlkyl(aryl)‐IL
DMSO/THFDMSO/THF(94%)
Kitamura, J. Am. Chem. Soc. 1999, 121, 11674.Rawal, J. Am. Chem. Soc. 1998, 120, 13523.
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Transformation‐R2ILAlkenyl(aryl)‐IL
Ochiai, J. Am. Chem. Soc. 1988, 110, 6565.
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Transformation‐R2ILAlkenyl(aryl)‐IL
Ochiai, J. Am. Chem. Soc. 1991, 113, 3135.Ochiai, J. Am. Chem. Soc. 1993, 115, 2528.
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Transformation‐R2ILAlkenyl(aryl)‐IL
Ochiai, J. Am. Chem. Soc. 1996, 118, 10141.
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Transformation‐R2ILAlkenyl(aryl)‐IL
Ochiai, J. Org. Chem. 1999, 64, 8563.Ochiai, J. Am. Chem. Soc. 1996, 118, 10141.Ochiai, J. Am. Chem. Soc. 1988, 110, 6565.
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Transformation‐R2ILAlkynyl(aryl)‐IL
Ochiai and Fujita, J. Am. Chem. Soc. 1986, 108, 8281.
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Transformation‐R2ILAlkynyl(aryl)‐IL
Ochiai and Fujita, J. Am. Chem. Soc. 1986, 108, 8281.
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Transformation‐R2ILAlkynyl(aryl)‐IL
Ochiai, J. Am. Chem. Soc. 1991, 113, 3136.Ochiai, J. Am. Chem. Soc. 1986, 108, 8281.
Feldman, J. Org. Chem. 1995, 60, 7722.
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Transformation‐R2ILAlkynyl(aryl)‐IL
Stang, J. Am. Chem. Soc. 1994, 116, 93.Feldman, Org. Lett. 2000, 2, 2603.
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Acknowledgement‐Welcome Marshall!!
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Q1
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Q2
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Q3
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A1
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A2
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A3