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A general and efficient method for the synthesis of oxindole derivatives through visible-light-induceddifluoromethylenephosphonation of N-arylacrylamides has been developed. The phosphonodifluoromethyl radicals, which is generated in situ from the corresponding BrCF2PO(OEt)2 under visible-lightirradiation, in combination with N-arylacrylamides furnished difluoromethylenephosphonated oxindoles via a proposed tandem radical cyclization process. Notable advantages of this method include its simplicity and mild conditions, avoidance of toxic reagents, and compatibility with a variety of functionalgroups.

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°®ÓëÓêÏÂ: ½ð±Ò+1 2016-12-04 08:12:43
yinguojie: ½ð±Ò+50, ·­ÒëEPI+1 2016-12-06 08:12:15
£¨±¾Îı¨µÀÁË£©Ò»ÖÖ¼òµ¥¸ßЧµÄßÅßáͪÑÜÉúÎoxindole derivatives£©ºÏ³É·½·¨µÄÑз¢£¬¸Ã·½·¨µÄ¹Ø¼ü²½ÖèΪÔڿɼû¹âÒý·¢ÏÂN-·¼ÏãÈ¡´úµÄ±ûÏ©õ£°·£¨N-arylacrylamides£©Óë¶þ·ú¼×»ùÁ×Ëáõ¥µÄ¼Ó³É·´Ó¦£¨fluoromethylenephosphonation£©¡£

¸Ã·½·¨Í¨¹ý¿É¼û¹â¼¤·¢BrCF2PO(OEt)2£¬²¢ÐγÉÏàÓ¦µÄÁ×Ëá¶þ·ú¼×»ù×ÔÓÉ»ù£¨¾ÍÊǰÑBrÈ¥µô³ÉµÄ×ÔÓÉ»ù£©£¬¸Ã×ÔÓÉ»ùͨ¹ýÒ»ÖÖÀíÂ۵ģ¨proposed£©ÁªºÏ£¨tandem £©×ÔÓÉ»ù»·ºÏ¹ý³Ì£¨cyclization process£©ÓëN-·¼ÏãÈ¡´úµÄ±ûÏ©õ£°·£¨N-arylacrylamides£©·´Ó¦£¬Éú³É¶þ·ú¼×»ùÁ×Ëáõ¥È¡´úµÄßÅßáͪ»¯ºÏÎdifluoromethylenephosphonated oxindoles£©¡£

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