Cascade Skeletal Rearrangement of Gold Carbene Intermediates: Synthesis of Medium‐Sized Pyrimidine‐Fused Benzolactones
作者:Ali Wang、Xiaoping Hu、Xin Xie、Yuanhong Liu
DOI:10.1002/adsc.202100572
日期:2021.8.3
A gold-catalyzedcyclization/cascade skeletal rearrangement of o-cyanophenylalkynones with 3-amino-benzo[d]-isoxazoles has been developed, which provides an approach for synthesizing medium-sized benzolactones. Based on the experimental results, we postulate that the initial nucleophilic attack occurs preferentially at the keto moiety instead of the gold-carbene. This reactivity initiates an attractive
已经开发出金催化的邻氰基苯基炔酮与 3-氨基-苯并[ d ]-异恶唑的环化/级联骨架重排,这为合成中等大小的苯内酯提供了一种方法。根据实验结果,我们假设初始亲核攻击优先发生在酮基部分而不是金卡宾。这种反应引发了一个有吸引力的级联过程,包括卡宾转移、1,2-芳基迁移、环加成、扩环等,导致初始底物的多重键断裂。
A Tandem Elimination−Cyclization−Suzuki Approach: Efficient One-Pot Synthesis of Functionalized (<i>Z</i>)-3-(Arylmethylene)isoindolin-1-ones
作者:Caiyun Sun、Bin Xu
DOI:10.1021/jo801219j
日期:2008.9.19
A novel and efficient one-pot regioselective elimination-cyclization-Suzuki approach was developed to afford (Z)-3-arylmethyleneisoindolin-1-ones in good to excellent yields from easily accessible o-gem-dihalovinylbenzamides and organoboron reagents.
The Action of Sulfuric Acid on Diarylphthalins. II. Mechanism of the Reaction<sup>1</sup>
作者:F. F. Blicke、R. A. Patelski
DOI:10.1021/ja01295a004
日期:1936.4
Fuson, Journal of the American Chemical Society, 1926, vol. 48, p. 834