Rhodium(III)-Catalyzed Redox-Neutral CH Annulation of Arylnitrones and Alkynes for the Synthesis of Indole Derivatives
作者:Zhi Zhou、Guixia Liu、Yan Chen、Xiyan Lu
DOI:10.1002/adsc.201500580
日期:2015.9.14
By using a nitrone as the oxidizingdirectinggroup, a mild, practical and efficient rhodium(III)‐catalyzed CH functionalization for the synthesis of indole derivatives has been developed. This reaction obviates the need for an external oxidant and shows good functional group tolerance. The employment of a sterically hindered Mes group on the carbon center of the nitrone is crucial to produce indoles
Pd-Catalyzed Indole Synthesis via C–H Activation and Bisamination Sequence with Diaziridinone
作者:Jianjun Wang、Xiaofeng Sun、Daguo Hu、Yian Shi
DOI:10.1021/acs.orglett.1c02757
日期:2021.10.1
This work describes an efficient Pd-catalyzed indole synthesis. A wide variety of indoles can be obtained in good yields from readily available vinyl bromides. The reaction likely proceeds through a sequential aryl C–Hactivation and bisamination of a resulting pallada(II)cycle with diaziridinone.
这项工作描述了一种有效的 Pd 催化吲哚合成。可以从容易获得的乙烯基溴以良好的收率获得多种吲哚。该反应可能通过连续的芳基 C-H 活化和所得的钯 (II) 环与二氮丙啶酮的双胺化进行。
Synthesis of Functionalized (η
<sup>5</sup>
‐Indenyl)rhodium(III) Complexes and Their Application to C−H Bond Functionalization
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。
BENZIMIDAZOLIUM DYES AND THEIR USE AS FLUORESCENT CHEMOSENSORS
申请人:CHANG Young-Tae
公开号:US20080160521A1
公开(公告)日:2008-07-03
The present invention is directed toward benzimidazolium dye compounds of formula (I) as follows:
wherein,
n is an integer from 2-10,
m is an integer from 2-10,
X
1
and X
2
are independently a halogen,
Q is H or a resin, and
R is (aromatic)
o
-(linker)
p
-with the linker being saturated or unsaturated C
1
-C5 hydrocarbons, each aromatic independently being a substituted or unsubstituted aromatic or heteroaromatic, o being 1 or 2, and p being 0 or 1. Methods of making and using these compounds are also disclosed.
Described herein are novel HDAC modulators, formulations containing them and methods of using them. In some embodiments, the HDAC modulators possess specific stereo chemistry. In other embodiments, the compounds described herein are used in the treatment or prevention of histone deacetylase mediated disorders.