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Dioxa-[40]decaphyrin(1.0.1.0.0.1.0.1.0.0): An analogue of turcasarin with a “figure-eight” structure

✍ Scribed by Jonathan L. Sessler; Daniel Seidel; Andreas Gebauer; Vincent Lynch; Khalil A. Abboud

Publisher
Journal of Heterocyclic Chemistry
Year
2001
Tongue
English
Weight
122 KB
Volume
38
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

The synthesis and characterization of two different furan containing analogues of turcasarin, namely 46,51 ‐dioxa‐2,11,15,20,24,33,37,42‐octapropyl‐turcasarin (7a) and 46,51 ‐dioxa‐2,11,24,33‐tetrapropyl‐15,20,37,42‐tetraethyl‐16,19,38,41‐tetramethyl‐turcasarin (7b) are described. While 7a was found to exhibit a “figure eight” structure in solution and in the solid state, 7b is believed to adopt a different, more symmetric conformation is solution.

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Extensions R[α − a] ∩&#xa
Extensions R[α − a] ∩ R[(α − a)− 1] with an Anti-integral Element α Are Unchanged for Any a ∈ R
✍ Junro Sato; Susumu Oda; Ken-ichi Yoshida 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 64 KB

Let R be an integral domain and ␣ an anti-integral element of degree d over R. w x w Ž . y1 x w x w y1 x It is shown that the equality R ␣ y a l R ␣ y a s R ␣ l R ␣ holds for any a g R with ␣ y a / 0.