An Efficient Organocatalyzed Interconversion of Silyl Ethers to Tosylates Using DBU and <i>p</i>-Toluenesulfonyl Fluoride
作者:Vincent Gembus、Francis Marsais、Vincent Levacher
DOI:10.1055/s-2008-1078407
日期:2008.6
A mild and efficient interconversion from silyl ethers to sulfonates esters is reported with good yields. This silyl-sulfonyl exchange proceeds readily in acetonitrile at room temperature in the presence of p-toluenesulfonyl fluoride and a catalytic amount of 1,8-diazabicyclo[5.4.0]undec-7ene (DBU). This method can be used with trimethysilyl (TMS), triethylsilyl (TES) and tert-butyldimethylsilyl (TBDMS) ethers.
报道了一种温和且高效的硅醚转化为磺酸酯的方法,获得了良好的产率。这种硅-磺酰交换在室温下的乙腈中,在对甲苯磺酰氟和催化量的1,8-二氮杂双环[5.4.0]十一烯(DBU)存在下容易进行。该方法可以用于三甲基硅基(TMS)、三乙基硅基(TES)和叔丁基二甲基硅基(TBDMS)醚。