One-Pot Bi(OTf)3-Catalyzed Oxidative Deprotection of tert-Butyldimethyl Silyl Ethers with TEMPO and Co-Oxidants
作者:Jean-Michel Vatèle、Bogdan Barnych
DOI:10.1055/s-0030-1260980
日期:2011.9
A sequential one-pot synthesis for the oxidation of primary and secondary tert-butyldimethylsilyl (TBDMS) ethers, using catalytic amounts of metal triflates and TEMPO in combination with PhIO or PhI(OAc)2 in THF or acetonitrile, is described. Acid-sensitive protecting groups such as methylidene, isopropylidene, acetals, and Boc are unaffected under the reaction conditions. Another feature of this procedure
描述了用于催化伯和仲叔丁基二甲基甲硅烷基(TBDMS)醚的顺序一锅合成,该催化量是将催化量的金属三氟甲磺酸酯和TEMPO与PhIO或PhI(OAc)2结合在THF或乙腈中进行。酸敏感性保护基如亚甲基,异亚丙基,乙缩醛和Boc在反应条件下不受影响。该方法的另一个特征是其对叔丁基二苯基甲硅烷基醚对TBDMS醚的高选择性以及对酚醛TBDMS基团对脂族TBDMS的高选择性。 三氟甲磺酸铋(III)-羰基化合物-氧化-甲硅烷基醚-TEMPO