A Novel Approach to 1, 2, 4??Thiadiphospholes and Functionalized 1, 2??Thiaphospholes

…, J Renner, U Bergsträßer, F Tabellion…

Index: Dietz, Jochen; Schmidt, Thomas; Renner, Jens; Bergstraesser, Uwe; Tabellion, Frank; Preuss, Fritz; Binger, Paul; Heydt, Heinrich; Regitz, Manfred European Journal of Organic Chemistry, 2002 , # 10 p. 1664 - 1676

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Citation Number: 11

Abstract

Abstract Phosphaalkynes 1 react regiospecifically in the presence of the thiotantalum (V) compound 2 to afford the 1, 2, 4-thiadiphospholes 3. These compounds can function both as η 1 and as η 5 ligands in complexes with group-6 metals.[4+ 2] Cycloaddition reactions only occur with phosphaalkynes or highly reactive acetylenes as reaction partners. These reactions afford on the one hand the functionalized 1, 2-thiaphospholes 17 and, on the ...