52894-99-2Relevant academic research and scientific papers
Palladium-Catalyzed C-S Bond Cleavage with Allenoates: Synthesis of Tetrasubstituted 2-Alkenylfuran Derivatives
Wang, Quannan,Liu, Zhuqing,Lou, Jiang,Yu, Zhengkun
supporting information, p. 6007 - 6011 (2018/10/09)
Palladium-catalyzed C-S cleavage of tetrasubstituted internal alkene α-oxo ketene dithioacetals was realized with allenoates as the coupling partners, efficiently affording tetrasubstituted 2-alkenylfuran derivatives with excellent regioselectivity under mild conditions. Allenoates acted as C1 synthons in the desulfurative [4 + 1] annulation.
Tin tetrachloride-catalyzed regiospecific allylic substitution of quinone monoketals: An easy entry to benzofurans and coumestans
Liu, Yingjie,Liu, Jingxin,Wang, Mang,Liu, Jun,Liu, Qun
supporting information, p. 2678 - 2682 (2013/01/15)
A highly regioselective allylic substitution of quinone monoketals with a-oxoketene dithioacetals is achieved under the catalysis of only tin tetrachloride (1 mol%). The advantages of the reaction, including its simplicity, rapidity, low catalyst loading of inexpensive tin tetrachloride, mild conditions and; in particular, the regiospecificity, is proposed to be due to a pseudo-intramolecular process. This new synthetic method provides a facile [3+2] cycloaddition route to benzofurans and is highlighted by the synthesis of coumestans.
A convenient synthesis of 2,3,4,5-functionalised thieno[2,3-b]thiophenes
Sommen, Geoffroy,Comel, Alain,Kirsch, Gilbert
, p. 735 - 741 (2007/10/03)
A two steps simple synthesis of 2,3,4,5-functionalised thieno[2,3-b]thiophenes 2-6 from ketene dimethylthioacetals is described.
Application of commercially available anhydrous potassium fluoride for a convenient synthesis of ketene dithioacetals
Mashraqui, Sabir H.,Hariharasubrahmanian, Harini
, p. 492 - 493 (2007/10/03)
Commercially available anhydrous KF without activation or solid support promotes condensation between active methylene compounds, carbon disulfide and an alkylating agent in dry DMF to allow the preparation of a variety of ketene dithioacetals in fair to good yields under ambient conditions.
A convenient one-pot synthesis of ketene dithioacetals
Villemin,Alloum
, p. 301 - 303 (2007/10/02)
An easy synthesis of ketene dithioacetals 2 and 3 by the condensation of carbon disulfide and active methylene compounds 1 with subsequent alkylation in the presence of potassium fluoride is described.
