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DengµÈÔÚ2005Äê·Ö±ðÒÔßäßò¡¢ßÁ़°PPh£¬ºÍ»ÇËáÄÚõ¥ÎªÔÁϺϳÉÁËϵÁеĴøÓлÇõ£ÂȵÄFACLs£¬¸ÃÀë×ÓÒºÌåΪǿËáÐÔÎïÖÊ£¬¿ÉÒÔ×÷ΪÐí¶àËá´ß»¯·´Ó¦µÄ½éÖÊ»ò´ß»¯¼Á¡£VarmaµÈÔÚ2005Ä걨µÀÁËÀûÓÃ΢²¨´Ù½ø£¬ÎÞÈܼÁ·¨ÖƱ¸ÒÔ¶þÍé»ùßäßòÑÎΪÑôÀë×Ó£¬InCl4-ΪÒõÀë×ÓµÄFAILs£¬¸Ã·¨¾ßÓвÙ×÷¼ò±ã£¬»·¾³ÓѺõÈÓŵ㡣ËûÃÇÀûÓøÃÀë×ÓÒºÌåΪ´ß»¯¼Á¡£ÔÚ΢²¨´Ù½øÏ¶Դ¼½øÐÐËÄÇâßÁà«»¯À´±£»¤ôÇ»ù£¬È¡µÃÁ˺ܺõĽá¹û¡£¶ÔÓÚ¾ßÓÐBronsedËáÐÔµÄFALLsÒ»°ã¶¼ÐèÔÚÆÕͨÀë×ÓÒºÌåÖÐÒýÈëÖÊ×ÓÔ´¡£ColeµÈÔÚ2002ÄêÊ״ᨵÀÁ˾ßÓнÏÇ¿BronsedËáÐÔµÄFAILsµÄºÏ³É¡£ Deng et al. synthesized a series of FACLs with sulfonyl chloride in 2005, using imidazole, pyridine and PPh, sulfonate lactone as the materials, repectively. The ionic liquid is a strong acid which can be used as the medium or catalyst of many acid-catalyzed reactions. Varma et al. reported microwave-assisted, solvent-free preparation of FAILs with dialkyl imidazole salt as the cation and InCl4- as the anion in 2005. The method featured easy manipulation and environmently friendly characteristics. They applied the ionic liquid as the catalyst to the microwave-aided protection of alcohol hydroxy group by THP with good results. In general, for the FALLs with Bronsted acidity, proton source needs to be introduced into common ionic liquids. In 2002, Cole et al. first reported synthesis of FALLs with strong Bronsted acidilty. |
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