e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Preparation and Some Reactions of 1H??1, 4??Benzothiazine Ylides (= 1H??1, 4??Benzothioniaazin??4??ide)
…, G Yousif, K Fisher, CK Fair, EO Schlemper
Index: Iskander, George M.; Khawad, Ibrahim E.; Yousif, Ghariballa; Fisher, Keith; Fair, Kay C.; Schlemper, Elmer O. Helvetica Chimica Acta, 1985 , vol. 68, p. 2216 - 2225
Abstract A series of fifteen 1H-1, 4-benzothiazine ylides were obtained by alkylation of the corresponding 4H-1, 4-benzothiazines 1. Ylides of type 2g–r showed slight [1, 2] rearrangements upon thermolysis besides main dealkylation to 1 and olefin production. The ylides of this type underwent redox reactions when treated with hydrazine hydrate alone, giving 3, 4-dihydro-2H-1, 4-benzothiazines mainly, while ylides of type 2a–f failed to react.
