15096-91-0Relevant academic research and scientific papers
Utility of α-Oxoketene Dithioacetal in Organic Synthesis: Synthesis of Some New Spiro (Pyran-4,2'-benzothiazole) Derivatives
El-Sayed, Ahmed Mahmoud,El-Saghier, Ahmed Mohamed Mohamed,Mohamed, Mounir Abbas Ali,El-Shafei, Ahmed Kamal
, p. 605 - 608 (2007/10/03)
Ketene S,S-acetal 1 reacts with 2-aminobenzenethiol to afford 2-(1-acetyl-2-oxopropylidene)benzothiazole 2 which was allowed to react with a variety of active methylene reagents to give spiro derivatives (4-13, 16, 17).Compound 2 also reacts with thiourea, thioacetamide or bromomalononitrile to afford spiro derivatives 14, 15 or spiro 18 through a nucleophilic addition and cyclization.
Synthesis of Acetyl-Substituted Heterocyclic Ketene Aminals and Their Deactylation Reaction
Wang, He-Ting,Wang, Xiao-Jun,Huang, Zhi-Tang
, p. 2141 - 2145 (2007/10/02)
The acetyl-substituted heterocyclic ketene aminals 3-6 were synthesized by the reaction of ketene dithioacetals 2 with diamines.The deacetylation of heterocyclic diacetyl ketene-aminals by alkali was studied, and the corresponding monoacetyl derivatives were studied.
Synthesis, Reactions, and Tautomerism of Ketene N,S-Acetals with Benzothiazoline Ring
Huang, Zhi-Tang,Shi, Xian
, p. 541 - 547 (2007/10/02)
Ketene dithioacetals 2 react with 2-aminothiophenol to afford the corresponding substituted 2(3H)-methylenebenzothiazoles 3.Some compounds 3 react with α,β-unsaturated esters to give 1H-pyridobenzothiazole derivatives 4 and 5 by an electrophilic addition and cyclocondensation sequence.
