19th International Congress on Heterocyclic Chemistry. Book - download pdf or read online

By Robert M. Williams

This ebook offers the abstracts of the 19th foreign Congress of Heterocyclic Chemistry (19th ICHC) held in citadel Collins, Colorado, 10-15th August 2003 and offers the reader with a topical accomplished reference resource overlaying the newest advancements within the heterocycles sector. each one lecture from the nineteenth ICHC is gifted as a one web page summary containing a textual precis of the lecture, together with references, figures and get in touch with info of the author(s).

Papers are divided into the next sections: heterocyclic normal items, heterocycles in natural synthesis, bioactive heterocycles, heterocyclic fabrics &related issues, heterocyclic prescription drugs.

The publication of abstracts offers a topical reference resource overlaying the newest advancements within the heterocyles quarter

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Hodgson), 2003, Springer-Verlag, in press. G. Christoph, D. Hoppe, Asymmetric Synthesis of 2-Alkenyl-l-cyclopentanols via Tin-Lithium Exchange and intramolecular Cvcloalkylation, Org. Lett. 2002, 4, 2189-2192. 55 12-IL-17 Retrocycloadditions of Substituted 4H-l,3-Dioxins: Versatile Methodology for Heterocyclic Natural Products Synthesis Ronald A. Aungst, Seth L. Crawley, James R. Fuchs, Raymond L. Funk*, Thomas J. Greshock, Raymond 1. Huntley, and Jun-Ho Maeng Department of Chemistry, The Pennsylvania State University University Park, Pennsylvania 16802 Our group has extensively investigated the preparation and retrocycloadditions of substituted 4H-l,3-dioxins for the purpose of generating reactive unsaturated ketones or aldehydes.

Chern. Soc. 2001,123, 10511. ; Cardenas, D. ; Echavarren, A. M. Chern. Eur . 1. 2003, 9, in press. 2. ; Cardenas, D. ~ Echavarren, A. M. Angew. Chern. Int. Ed. 2001, 40, 4754-4757. ~ Cardenas, D. ; Echavarren, A. M. 1. Am. Chern. Soc . 2003, 125, in press. 38 -13 15-PL-14 The Pivotal Role of Heterocycles in Organic Materials Hong Meng, Clifton K. F. e ver~ l~rge ar~a of materi~ls science has remained an academic CUrIOSIty until ca 1973 WIth s TIP S N TCNQ CN the advent of tetrathiafulvalenium chloride (TTFCI) and the first highly conducting organic metal tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) .

In this talk we will review the recent developments in this new area of heterocyclic compounds and will report on the most recent developments stemming from our laboratory. The synthesis and properties of materials based on the following molecules will be presented. (>==< J s V Ij ~ s ~N K /' N ~~s~~ R I N r o~ 0 ~ s The polymers derived from these have unusual electrochromic properties, including the long sought after green color. Now "RGB" organic electrochromics are almost at hand. A very unusual liquid crystal based on the flathead amphiphile below will also be presented.

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