established that reductive complexation of functionalized benzofulvenes, which are readily prepared from commercially available indene and 2‐methylindene, with RhCl3 in ethanol affords the corresponding indenyl–rhodium(III) dichlorides bearing substituents at the 1‐ (H or CO2Et), 2‐ (H or Me), and 3‐ [CH2Ph or CH2(2‐MeOC6H4)] positions. The indenyl–rhodium(III) complexes bearing one ethoxycarbonyl
已经确定,可以很容易地从商业上可获得的茚和2-甲基茚与官能团苯并富勒烯与乙醇中的RhCl 3进行还原络合,得到相应的茚-铑(III)二氯化物,它们在1-(H或CO 2)处带有取代基。Et),2-(H或Me)和3- [CH 2 Ph或CH 2(2-MeOC 6 H 4)]位置。带有一个乙氧基羰基的茚-铑(III)配合物比我们先前报道的Cp E Rh III配合物对乙炔化物与内部炔烃的氧化[3 + 2]环合反应显示出更高的热稳定性和区域选择性。
Synthesis of a versatile 1<i>H</i>-indene-3-carboxylate scaffold enabled by visible-light promoted Wolff rearrangement of 1-diazonaphthalen-2(1<i>H</i>)-ones
Herein, we have developed a sequential visible-light-promoted Wolffrearrangement of 1-diazonaphthalen-2(1H)-ones, followed by capturing the in situ generated ketene intermediates with various alcohols, producing diverse 1H-indene-3-carboxylates in moderate to good yields under mild reaction conditions. The broad substrate scope, high functional group tolerance, and robust conditions make the resulting
在此,我们开发了一种顺序的可见光促进的 1-diazonaphthalen-2(1 H )-ones 沃尔夫重排,然后用各种醇捕获原位生成的乙烯酮中间体,产生多种 1 H -indene-3-carboxylates在温和的反应条件下,收率适中。广泛的底物范围、高官能团耐受性和稳健的条件使所得衍生物成为合成大量生物活性分子的多功能平台。
Wislicenus; Hentrich, Justus Liebigs Annalen der Chemie, 1924, vol. 436, p. 20
作者:Wislicenus、Hentrich
DOI:——
日期:——
Courtot, Annales de Chimie (Cachan, France), 1915, vol. <9> 4, p. 205