403665-83-8Relevant academic research and scientific papers
Powerful Ti-crossed Claisen condensation between ketene silyl acetals or thioacetals and acid chlorides or acids
Iida, Akira,Nakazawa, Syogo,Okabayashi, Tomohito,Horii, Atsushi,Misaki, Tomonori,Tanabe, Yoo
, p. 5215 - 5218 (2006)
A powerful Ti-crossed Claisen condensation between ketene silyl acetals (KSAs) and acid chlorides was successfully performed to give α-monoalkylated esters and thermodynamically unfavorable (less accessible) α,α-dialkylated β-keto esters in good yield (46
Mild and efficient pentafluorophenylammonium triflate (PFPAT)-catalyzed C-acylations of enol silyl ethers or ketene silyl (Thio)acetals with acid chlorides
Iida, Akira,Osada, Jun,Nagase, Ryohei,Misaki, Tomonori,Tanabe, Yoo
, p. 1859 - 1862 (2008/02/02)
A pentafluorophenylammonium triflate (PFPAT) catalyst (5 mol %) successfully promoted C-acylation of enol silyl ethers with acid chloride to produce various β-diketones (12 examples; 62-92% yield). Similarly, C-acylation of ketene silyl acetals or ketene
