Metal-free regioselective C-3 acetoxylation of N-substituted indoles: crucial impact of nitrogen-substituent
作者:Vineeta Soni、Ulhas N. Patel、Benudhar Punji
DOI:10.1039/c5ra10428a
日期:——
A metal-free method for the regioselectiveC-3 acetoxylation of the N-substituted indoles with PhI(OAc)2 is described under mild reaction conditions. This method tolerates a broad range of functional groups with moderate to good yields. The π-electron-deficient aryl-substituents on the N-atom of indoles and the acidic reaction medium remarkably favor C-3 acetoxylation.
A General Nickel-Catalyzed Method for C−H Bond Alkynylation of Heteroarenes Through Chelation Assistance
作者:Shrikant M. Khake、Vineeta Soni、Rajesh G. Gonnade、Benudhar Punji
DOI:10.1002/chem.201605306
日期:2017.2.24
A general nickel‐catalyzed method for the alkynylation of heteroarenes through monodentate chelation assistance is described. Many heterocycles, including indoles, pyrroles, imidazoles, and pyrazole, efficiently coupled with (triisopropylsilyl)alkynyl bromide, and synthetically important functional groups, such as halides, ether, nitrile, and nitro, are tolerated. Synthetic applicability of this Ni‐catalyzed
ARYLPYRIDINONE ITK INHIBITORS FOR TREATING INFLAMMATION AND CANCER
申请人:Confluence Life Sciences, Inc.
公开号:US20150210671A1
公开(公告)日:2015-07-30
Disclosed herein are arylpyridinone compounds and compositions useful in the treatment of ITK mediated diseases, such as inflammation, having the structure of Formula (I):
wherein Ar, R
2
, R
4
, R
5
, n and X are as defined in the detailed description. Methods of inhibition of ITK activity in a human or animal subject are also provided.
<i>N</i>,<i>N</i>′-(Phenylmethylene)diacetamide Analogues as Economical and Efficient Ligands in Copper-Catalyzed Arylation of Aromatic Nitrogen-Containing Heterocycles
N,N′-(Phenylmethylene)diacetamide analogues which were simply prepared from the condensation reaction of an aldehyde with an amide or urea were found to be efficient ligands in copper-catalyzed coupling reaction of aryl halides with various azole nucleophiles. The newly developed ligand showed broad application scope in this conversion. Compounds including imidazoles, benzoimidazoles, pyrrole, indole, and benzotriazole were successfully arylated with diversified aromatic halides to give corresponding products in moderate to excellent yields.
Manganese(I)‐Catalyzed Regio‐ and Stereoselective 1,2‐Diheteroarylation of Allenes: Combination of C−H Activation and Smiles Rearrangement
作者:Shi‐Yong Chen、Xiang‐Lei Han、Jia‐Qiang Wu、Qingjiang Li、Yunyun Chen、Honggen Wang
DOI:10.1002/anie.201704952
日期:2017.8.7
functional molecules. A MnI-catalyzed 1,2-diheteroarylation of allenes via a C−H activation/Smiles rearrangement cascade is presented. The reaction occurred under additive-free or even solvent-free conditions, which allowed the creation of two C−C and one C−N bonds in a single operation. A series of structurally diverse bicyclic or tricyclic compounds bearing an exocyclic double bond were constructed in