Liebigs Annalen der Chemie

Reaktionen der Trialkylsilyl??trifluormethansulfonate, XII. Aldol??Additionsreaktionen mit 2, 6??Bis (trimethylsiloxy) thiophen??Synthese bicyclischer γ??Lactone

W Rzehak, G Simchen

Index: Rzehak, Werner; Simchen, Gerhard Liebigs Annalen der Chemie, 1992 , # 6 p. 615 - 620

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Abstract

In the presence of trimethylsilyl triflate (2) aromatic aldehydes bislactones 10 are formed in a aldol addition of aliphatic al-4 react with 2, 6-bis (trimethylsiloxy) thiophene (3) to yield the dehydes 9 to 3 catalysed by zinc chloride and subsequent hy-3, 4-disubstituted thiosuccinic anhydrides 5. By hydrolysis of drolysis of the intermediates. The synthesis of 3, 4-bis (dialkoxythe products 5 in the presence of lead acetate the diaryl-sub-a1kyl) thiosuccinic ...