Dynamic Covalently Bonded Rotaxanes Cross‐Linked by Imine Bonds between the Axle and Ring: Inverse Temperature Dependence of Subunit Mobility

Kawai, Hidetoshi; Umehara, Takeshi; Fujiwara, Kenshu; Tsuji, Takashi; Suzuki, Takanori

doi:10.1002/anie.200600750

Cited by 70 publications

(38 citation statements)

References 41 publications

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“…17 Having the tetra-bromo derivative 16 in hand, it was treated with various AMCs (Fig. 3) to assemble the corresponding di-bromo building blocks in a single step.…”

Section: Resultsmentioning

confidence: 99%

Diversity-oriented approach to novel spirocycles via 1,2,4,5-tetrakis(bromomethyl)benzene under operationally simple reaction conditions

Kotha

Ali

2015

Tetrahedron

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“…17 Having the tetra-bromo derivative 16 in hand, it was treated with various AMCs (Fig. 3) to assemble the corresponding di-bromo building blocks in a single step.…”

Section: Resultsmentioning

confidence: 99%

Diversity-oriented approach to novel spirocycles via 1,2,4,5-tetrakis(bromomethyl)benzene under operationally simple reaction conditions

Kotha

Ali

2015

Tetrahedron

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“…Chemicals were used as received from Alfa Aesar and/or Aldrich. [FcC(O)Cl],71 1,3,5‐tris(bromomethyl)‐2,4,6‐trimethylbenzene,72 1,2,4,5‐tetrakis(bromomethyl)benzene,73 Li[ESiMe 3 ]60 and Na[ESiMe 3 ]61 (E=S, Se) were synthesized according to literature procedures. 1,4‐bis(bromomethyl)‐2,3,5,6‐tetramethylbenzene was prepared according to similar procedure for 1,3,5‐tris(bromomethyl)‐2,4,6‐trimethylbenzene 72 .…”

Section: Methodsmentioning

confidence: 99%

New Polydentate Trimethylsilyl Chalcogenide Reagents for the Assembly of Polyferrocenyl Architectures

Fard¹,

Najafabadi²,

Hesari³

et al. 2014

Chemistry A European J

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A series of polychalcogenotrimethylsilane complexes Ar(CH2ESiMe3)n, (Ar = aryl; E = S, Se; n = 2, 3, and 4) can be prepared from the corresponding polyorganobromide and M[ESiMe3] (M = Na, Li). These represent the first examples of the incorporation of such a large number of reactive -ESiMe3 moieties onto an organic molecular framework. They are shown to be convenient reagents for the preparation of the polyferrocenylseleno- and thioesters from ferrocenoyl chloride. The synthesis, structures, and spectroscopic properties of the new silyl chalcogen complexes 1,4-(Me3SiECH2)2(C6Me4) (E = S, 1; E = Se, 2), 1,3,5-(Me3SiECH2)3(C6Me3) (E = S, 3; E = Se, 4) and 1,2,4,5-(Me3SiECH2)4(C6H2) (E = S, 5; E = Se, 6) and the polyferrocenyl chalcogenoesters [1,4-{FcC(O)ECH2}2(C6Me4)] (E = S, 7; E = Se, 8), [1,3,5-{FcC(O)ECH2}3(C6Me3)] (E = S, 9; E = Se, 10) and [1,2,4,5-{FcC(O)ECH2}4(C6H2)] (E = S, 11 illustrated; E = Se, 12) are reported. The new polysilylated reagents and polyferrocenyl chalcogenoesters have been characterized by multinuclear NMR spectroscopy ((1)H, (13)C, (77)Se), electrospray ionization mass spectrometry and, for complexes 1, 2, 3, 4, 7, 8, and 11, single-crystal X-ray diffraction. The cyclic voltammograms of complexes 7-11 are presented.

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“…Kawai, Umehara, Fujiwara, Tsuji, and Suzuki [98] showed that a bis-imine rotaxane (Fig. 9c3) composed of a macrocycle with two amino groups (Fig.…”

Section: Controlling the Position Of Macrocycles In [2]rotaxanesmentioning

confidence: 99%

Synthetic Molecular Machines and Polymer/Monomer Size Switches that Operate Through Dynamic and Non-Dynamic Covalent Changes

Stadler

Ramírez

2011

Constitutional Dynamic Chemistry

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The present chapter is focused on how synthetic molecular machines (e.g. shuttles, switches and molecular motors) and size switches (conversions between polymers and their units, i.e., conversions between relatively large and small molecules) can function through covalent changes. Amongst the interesting examples of devices herein presented are molecular motors and size switches based on dynamic covalent chemistry which is an area of constitutional dynamic chemistry.

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Dynamic Covalently Bonded Rotaxanes Cross‐Linked by Imine Bonds between the Axle and Ring: Inverse Temperature Dependence of Subunit Mobility

Cited by 70 publications

References 41 publications

Diversity-oriented approach to novel spirocycles via 1,2,4,5-tetrakis(bromomethyl)benzene under operationally simple reaction conditions

Diversity-oriented approach to novel spirocycles via 1,2,4,5-tetrakis(bromomethyl)benzene under operationally simple reaction conditions

New Polydentate Trimethylsilyl Chalcogenide Reagents for the Assembly of Polyferrocenyl Architectures

Synthetic Molecular Machines and Polymer/Monomer Size Switches that Operate Through Dynamic and Non-Dynamic Covalent Changes

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