Copper/Diboron‐Mediated Intramolecular Oxygenation and Allylation/Benzylation of Nitroalkynes for the Synthesis of C2‐Quaternary Indolin‐3‐ones | Zendy

Fu Wenqiang | Zendy; Zhou Yao | Zendy; Song Qiuling | Zendy

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Copper/Diboron‐Mediated Intramolecular Oxygenation and Allylation/Benzylation of Nitroalkynes for the Synthesis of C2‐Quaternary Indolin‐3‐ones

Author(s) -

Fu Wenqiang,

Zhou Yao,

Song Qiuling

Publication year - 2018

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.201800500

Subject(s) - intramolecular force , chemistry , cycloisomerization , functional group , oxygenation , copper , combinatorial chemistry , catalysis , organic chemistry , ecology , biology , polymer

A direct strategy for intramolecular transfer oxygenation of alkynes and cycloisomerization of 2‐nitroalkynes to synthesize a wide range of C2‐quaternary indolin‐3‐ones was developed by a copper/diboron system. The desired allylation, benzylation and propargylation products were obtained in moderate to excellent yields with good functional group tolerance. The mechanism study indicated that this protocol involved a radical process.

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