神马作文网英语翻译TpRu(PPh3)(CH3CN)2PF6 (10mol%) catalyst effected the nuc
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英语翻译
TpRu(PPh3)(CH3CN)2PF6 (10mol%) catalyst effected the nucleophilic addition of water,alcohols,aniline,acetylacetone,pyrroles,and dimethyl malonate to unfunctionalized enediynes under suitable conditions (100 °C,12 24 h) and gave functionalized benzene products in good yields.In this novel cyclization,nucleophiles very regioselectively attack the internal C1′alkyne carbon of enediynes to give benzene derivatives as a single regioisomer.Experiments with methoxy substituents exclude the possible involvement of naphthyl cations as reaction intermediates in the cyclization of (o-ethynylphenyl) alkynes.Deuterium-labeling experiments indicate that the catalytically active species is ruthenium-π-alkyne rather than ruthenium vinylidene species.This hypothesis is further confirmed by the aromatization of- o-(2′-iodoethynyl)phenyl alkynes with alcohols.We propose a nucleophilic addition/insertion mechanism for this nucleophilic aromatization on the basis of a series of experiments.
那篇发少了,这里重新发一遍,望高手能翻译下,
TpRu(PPh3)(CH3CN)2PF6 (10mol%) catalyst effected the nucleophilic addition of water,alcohols,aniline,acetylacetone,pyrroles,and dimethyl malonate to unfunctionalized enediynes under suitable conditions (100 °C,12 24 h) and gave functionalized benzene products in good yields.In this novel cyclization,nucleophiles very regioselectively attack the internal C1′alkyne carbon of enediynes to give benzene derivatives as a single regioisomer.Experiments with methoxy substituents exclude the possible involvement of naphthyl cations as reaction intermediates in the cyclization of (o-ethynylphenyl) alkynes.Deuterium-labeling experiments indicate that the catalytically active species is ruthenium-π-alkyne rather than ruthenium vinylidene species.This hypothesis is further confirmed by the aromatization of- o-(2′-iodoethynyl)phenyl alkynes with alcohols.We propose a nucleophilic addition/insertion mechanism for this nucleophilic aromatization on the basis of a series of experiments.
那篇发少了,这里重新发一遍,望高手能翻译下,
TpRu （三苯基膦） （乙腈） 2PF6 （ 10mol ％ ）催化剂的影响的亲核加成的水,醇,苯胺,丙酮,吡咯和二甲基丙二酸对unfunctionalized enediynes适当的条件下（ 100 ℃ ,12日24小时） ,并官能苯产品良好的收益.在这新的环化,亲核攻击非常regioselectively内部C1'alkyne碳的enediynes给予苯衍生物作为一个单一的regioisomer .实验甲氧取代排除参与的可能性萘阳离子反应中间体中环（邻ethynylphenyl ） alkynes.Deuterium标记实验表明,催化活性物种是钌- π -炔而不是钌偏物种.这一假设进一步证实了芳构化邻（ 2' - iodoethynyl ）苯基炔烃醇.我们提出了亲核加成/插入机制这个亲核芳构化的基础上,通过一系列试验.
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