Formation of sulfinate esters in the synthesis of triflates
作者:Thomas Netscher、Patrick Bohrer
DOI:10.1016/0040-4039(96)01930-2
日期:1996.11
and phenols with triflicanhydride in the presence of amines, trifluoromethanesulfinyl esters were unexpectedly found. Depending on the reaction conditions and the structures of both hydroxy compound and base, esterified products (yields <5% to 99%) containing 0% to 89% (!) of sulfinates were obtained. The mechanisms of these reactions are discussed. The results of the present study indicate how to
Herein, we report the first synthesis of difluoromethanesulfinate esters via the direct difluoromethanesulfinylation of alcohols with HCF2SO2Na/Ph2P(O)Cl. Primary, secondary, and tertiary alcohols were converted to the corresponding difluoromethanesulfinate esters in good to excellent yields under mild conditions. The late-stage functionalization of complexed biologically active natural products was
在这里,我们报道了通过使用HCF 2 SO 2 Na / Ph 2 P(O)Cl进行醇的直接二氟甲亚磺酰化来首次合成二氟甲亚磺酸酯。在温和条件下,伯醇,仲醇和叔醇可以良好的产率转化为相应的二氟甲亚磺酸酯。还证明了复杂的生物活性天然产物的后期功能化。该方法扩展到在催化量的Me 3 SiCl存在下使用CF 3 SO 2 Na进行醇的三氟甲烷亚磺酰化,以提供三氟甲烷亚磺酸酯。
A new equivalent of the CF 3 S(O) + cation. Synthesis of trifluoromethanesulfinates and trifluoromethanesulfinamides
作者:Thierry Billard、Alfred Greiner、Bernard R Langlois
DOI:10.1016/s0040-4020(99)00364-6
日期:1999.6
The solution of sodium trifluoromethanesulfinate (sodium “triflinate”) and phosphoryl chloride (), in AcOEt, behaves like an equivalent of the CF3S(O)+ cation. It can be used in situ to prepare trifluoromethanesulfinates (CF3S(O)OR) or trifluoromethanesulfinamides (CF3S(O)NHR) at room temperature from alcohols or amines, respectively.