Practical and Robust Method for Regio-and Stereoselective Preparation of (E)-Ketene tert-Butyl TMS Acetals and β-Ketoester-derived tert-Butyl (1 Z, 3 E)-1, 3-Bis ( …

…, K Takai, Y Nawate, T Misaki, Y Tanabe

文献索引：Iida, Akira; Okazaki, Hiroki; Misaki, Tomonori; Sunagawa, Makoto; Sasaki, Akira; Tanabe, Yoo Journal of Organic Chemistry, 2006 , vol. 71, # 14 p. 5380 - 5383

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被引用次数: 21

摘要

We developed an efficient, practical, robust method for the regio-and stereoselective preparation of (E)-ketene trimethylsilyl acetals (KSAs) derived from tert-butyl esters 1. The reaction was performed under convenient reaction conditions; LDA-TMSCl, 0-5° C, and