ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Five-Membered Chalcogen Heterocycles as Synthons for Heterodienes Synthesis of Δ4-1,4,2λ5-Thiaza- and Δ4-1,4,2λ5-SelenazaphospholinesSyntheses of 3,3-bis(trifluoromethyl)-3H-1,2,4-thiaselenazoles 3, -3H-1,2,4-thiatellurazoles 4, and -3H-1,2,4-diselenazoles 13 are described. These new classes of compounds can be used as synthons for 1-thia-3-aza-1,3-butadienes and 1-selena-3-aza-1,3-butadienes. This strategy offers simple new synthetic routes to numerous heterocyclic systems like Δ4-1,4,2λ5-thiaza-phospholines 9, Δ4-1,4,2λ5-selenazaphospholines 15, Δ2-1,3-thiazolines 11, Δ2-1,3-selenazolines 16, 4H-1,3-thiazines 12, and 4H-1,3-selenazines 17.
Notes:
Synthesen für 3,3-Bis(trifluormethyl)-3H-1,2,4-thiaselenazole 3, -3H-1,2,4-thiatellurazole 4 und -3H-1,2,4-diselenazole 13 werden beschrieben. Die neuen Verbindungsklassen eignen sich als Synthone für 1-Thia-3-aza-1,3-butadiene und 1-Selena-3-aza-1,3-butadiene. Diese Strategie bietet neue einfache Synthesemöglichkeiten für eine Vielzahl heterocyclischer Systeme, wie z. B. von Δ4-1,4,2λ5-Thiazaphospholinen 9, Δ4-1,4,2λ5-Selenazaphospholinen 15, Δ2-1,3-Thiazolinen 11, Δ2-1,3-Selenazolinen 16, 4H-1,3-Thiazinen 12 und 4H-1,3-Selenazinen 17.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19801130814
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