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Reaktionen von Dinatrium-dicyandithioacetat und Natrium-dicyanthioacetamiden mit γ-Bromcrotonsaeure-Derivaten
Wobig, Dieter
, p. 115 - 117 (2007/10/02)
Reactions of Disodium Dicyanodithioacetate and Sodium Dicyanothioacetamides with Derivatives of γ-Bromocrotonic Acid.The dicyanodithioacetate 3 reacts with the derivatives of γ-bromocrotonic acid 4a and 4b to give the thieno-thiophenes 5a and 5b. 3 can also be alkylated successively with two different alkylating reagents.In this way the compounds 5c, 6a, and 6b are prepared.Reactions of the dicyanothioacetamides 8a and 8b with 4a and 4b yield the thiazolidines 9a-d.
