A magnetic nano-supported Cu(I)catalyst was prepared and showed high activity for cyclization of ene-yne-ketone to synthesize furans.The catalyst was easily recovered from the reaction by using external magnets and re...A magnetic nano-supported Cu(I)catalyst was prepared and showed high activity for cyclization of ene-yne-ketone to synthesize furans.The catalyst was easily recovered from the reaction by using external magnets and reused 8 times without significant loss of its catalytic activity.展开更多
An unprecedent[4+3]cycloaddition of furoketenimines with furocarbenoids has been disclosed for the divergent and efficient synthesis of cycloheptafuran and cycloheptapyrrole scaffolds.Zinc chloride acted as promoters ...An unprecedent[4+3]cycloaddition of furoketenimines with furocarbenoids has been disclosed for the divergent and efficient synthesis of cycloheptafuran and cycloheptapyrrole scaffolds.Zinc chloride acted as promoters for both the formation of these two transient intermediates from isocyanides and ene-yne-ketones,and the subsequent construction of seven-membered ring.Three rings and five bonds were constructed successively in this three-component one-pot domino reaction.展开更多
基金supported by the Natural Science Foundation of Guangdong Province(No.10151022501000033).
文摘A magnetic nano-supported Cu(I)catalyst was prepared and showed high activity for cyclization of ene-yne-ketone to synthesize furans.The catalyst was easily recovered from the reaction by using external magnets and reused 8 times without significant loss of its catalytic activity.
基金financial support from National Natural Science Foundation of China(Nos.22171168,22001152 and 22101159)Taishan Scholar Program of Shandong Province and the Natural Science Foundation of Shandong Province of China(No.ZR2020QB019)。
文摘An unprecedent[4+3]cycloaddition of furoketenimines with furocarbenoids has been disclosed for the divergent and efficient synthesis of cycloheptafuran and cycloheptapyrrole scaffolds.Zinc chloride acted as promoters for both the formation of these two transient intermediates from isocyanides and ene-yne-ketones,and the subsequent construction of seven-membered ring.Three rings and five bonds were constructed successively in this three-component one-pot domino reaction.
