Chemical braking exhibited by ethynylhelicene (M)-nonamer in solution: Competitive reaction system of self-catalysis to form double-helix and approach towards equilibrium to form random-coil

Tsukasa Sawato; Atsushi Yagi; Mieko Arisawa; Masahiko Yamaguchi

doi:10.1016/j.tet.2017.03.083

Chemical braking exhibited by ethynylhelicene (M)-nonamer in solution: Competitive reaction system of self-catalysis to form double-helix and approach towards equilibrium to form random-coil

Tsukasa Sawato, Atsushi Yagi, Mieko Arisawa, Masahiko Yamaguchi

PHA - Molecular Pharmaceutical Science

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Chemical braking occurs in a dilute solution during a structural change of ethynylhelicene (M)-nonamer from the metastable double-helix state to the random-coil state, being at equilibrium, where the reaction is initially rapid and then substantially retard. The chemical braking is derived from the competitive chemical reaction system in dilute solution: An energetically uphill self-catalytic reaction to form double-helix and the downhill reaction to form the random-coil.

Original language	English
Pages (from-to)	2801-2805
Number of pages	5
Journal	Tetrahedron
Volume	73
Issue number	19
DOIs	https://doi.org/10.1016/j.tet.2017.03.083
Publication status	Published - 2017 Jan 1

Keywords

Chemical braking
Competitive reaction
Helicene
Metastable
Self-catalysis

ASJC Scopus subject areas

Biochemistry
Drug Discovery
Organic Chemistry

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Chemical braking exhibited by ethynylhelicene (M)-nonamer in solution : Competitive reaction system of self-catalysis to form double-helix and approach towards equilibrium to form random-coil. / Sawato, Tsukasa; Yagi, Atsushi; Arisawa, Mieko; Yamaguchi, Masahiko.

In: Tetrahedron, Vol. 73, No. 19, 01.01.2017, p. 2801-2805.

Research output: Contribution to journal › Article › peer-review

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