Cyclopropanation of Benzene Rings by Oxidatively Generated α-Oxo Gold Carbene: One-Pot Access to Tetrahydropyranone-Fused Cycloheptatrienes from Propargyl Benzyl Ethers.,Advanced Synthesis & Catalysis

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Cyclopropanation of Benzene Rings by Oxidatively Generated α-Oxo Gold Carbene: One-Pot Access to Tetrahydropyranone-Fused Cycloheptatrienes from Propargyl Benzyl Ethers.
Advanced Synthesis & Catalysis ( IF 4.4 ) Pub Date : 2017-11-14 , DOI: 10.1002/adsc.201701322
Kegong Ji _{1,

2} , Liming Zhang ₂

Affiliation

Cyclopropanations of benzene rings by oxidatively generated α-oxo gold carbenes are for the first time demonstrated in a Buchner reaction, in which readily available propargyl benzyl ethers are converted in one-pot to tetrahydropyranone-fused cycloheptatrienes via sequential oxidative gold catalysis and base-promoted isomerization. Additional examples of arene cyclopropanations without fragmentation of the cyclopropane ring are also realized.

中文翻译：

氧化生成的α-氧代金碳烯对苯环的环丙烷化作用：一锅法从炔丙基苄基醚中获取四氢吡喃酮-熔合环庚烯。

在Buchner反应中首次证明了由氧化生成的α-氧代金卡宾对苯环的环丙烷化，其中易于获得的炔丙基苄基醚通过顺序氧化金催化作用，一锅转化为四氢吡喃酮稠合的环庚烯，并经碱促进异构化。还实现了芳烃环丙烷化而没有环丙烷环断裂的其他实例。

更新日期：2017-12-07

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