Hydroarylation of 2‐Aryloxybut‐1‐en‐3‐ynes via Pd/Acid‐Catalyzed C−H Bond Activation: A Concise Synthesis of 2,3‐Bismethylene‐2,3‐dihydrobenzofurans | Zendy

Minami Yasunori | Zendy; Sakai Megumi | Zendy; Sakamaki Takumi | Zendy; Hiyama Tamejiro | Zendy

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Hydroarylation of 2‐Aryloxybut‐1‐en‐3‐ynes via Pd/Acid‐Catalyzed C−H Bond Activation: A Concise Synthesis of 2,3‐Bismethylene‐2,3‐dihydrobenzofurans

Author(s) -

Minami Yasunori,

Sakai Megumi,

Sakamaki Takumi,

Hiyama Tamejiro

Publication year - 2017

Publication title -

chemistry – an asian journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.18

H-Index - 106

eISSN - 1861-471X

pISSN - 1861-4728

DOI - 10.1002/asia.201701079

Subject(s) - intramolecular force , catalysis , moiety , chemistry , palladium , diene , medicinal chemistry , silylation , stereochemistry , polymer chemistry , organic chemistry , natural rubber

An intramolecular exo ‐hydroarylation of 2‐aryloxy‐1,4‐disilylbut‐1‐en‐3‐ynes via ortho ‐C−H bond activation under palladium(0) and acid catalysis was found to give 2,3‐bis(silylmethylidene)‐2,3‐dihydrobenzofurans. The two silyl groups present probably promoted the reaction and played a key role in stabilizing the diene moiety in the product. The products readily led to functionalized condensed cycles by a Diels–Alder reaction.

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