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[求助]
英譯漢 ,三句話---有機羥吲哚衍生物方面
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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. |

專家顧問 (著名寫手)
崇德瀹智
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專家經(jīng)驗: +528 |
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(本文報道了)一種簡單高效的吲哚酮衍生物(oxindole derivatives)合成方法的研發(fā),該方法的關(guān)鍵步驟為在可見光引發(fā)下N-芳香取代的丙烯酰胺(N-arylacrylamides)與二氟甲基磷酸酯的加成反應(yīng)(fluoromethylenephosphonation)。 該方法通過可見光激發(fā)BrCF2PO(OEt)2,并形成相應(yīng)的磷酸二氟甲基自由基(就是把Br去掉成的自由基),該自由基通過一種理論的(proposed)聯(lián)合(tandem )自由基環(huán)合過程(cyclization process)與N-芳香取代的丙烯酰胺(N-arylacrylamides)反應(yīng),生成二氟甲基磷酸酯取代的吲哚酮化合物(difluoromethylenephosphonated oxindoles)。 這種方法具有簡單溫和的反應(yīng)條件、避免劇毒試劑的使用、以及對多種官能團(tuán)都具有適應(yīng)性(compatibility with a variety of functional groups)等顯著的優(yōu)點。 |

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