Reaction of the Acetals with TESOTf−Base Combination; Speculation of the Intermediates and Efficient Mixed Acetal Formation
作者:Hiromichi Fujioka、Takashi Okitsu、Yoshinari Sawama、Nobutaka Murata、Ruichuan Li、Yasuyuki Kita
DOI:10.1021/ja060328d
日期:2006.5.1
using various bases revealed the reaction and reached the best combination of TESOTf-base. It was very mild and highly chemoselective and proceeded under weakly basic conditions. Then, many functional groups such as allyl alcohol, silylether, acetate, methyl ether, triphenylmethyl (Tr) ether, 1,3-dithiolane, methyl ester, and tert-butyl ester could survive under these conditions. Furthermore, this methodology