Mild, efficient Fischer indole synthesis using 2,4,6-trichloro-1,3,5-triazine (TCT)
摘要:
Mild and efficient protocol for the Fischer indole synthesis using TCT has been described. TCT serves as a mild and inexpensive catalyst. Under these conditions several functional groups such as ester, cyano, sulfone, amides, and ethers are tolerated. By this method, many functionalized analytically pure indoles were prepared easily without the need of purification. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] NOVEL SPIRO IMIDAZOLONES AS GLUCAGON RECEPTOR ANTAGONISTS, COMPOSITIONS, AND METHODS FOR THEIR USE<br/>[FR] NOUVELLES SPIRO-IMIDAZOLONES EN TANT QU'ANTAGONISTES DE RÉCEPTEUR DE GLUCAGON, COMPOSITIONS ET LEURS PROCÉDÉS D'UTILISATION
申请人:SCHERING CORP
公开号:WO2011119559A1
公开(公告)日:2011-09-29
The present invention relates to compounds of the general formula: wherein ring A, ring B, R1, R3, Z, L1, and L2 are selected independently of each other and are as defined herein, to compositions comprising the compounds, and to methods of using the compounds as glucagon receptor antagonists and for the treatment or prevention of type 2 diabetes and conditions related thereto.
Microwave-assisted regioselective olefinations of cyclic mono- and di-ketones with a stabilized phosphorus ylide
作者:Jinlong Wu、Dan Li、Huafeng Wu、Lijie Sun、Wei-Min Dai
DOI:10.1016/j.tet.2005.12.060
日期:2006.5
4-cyclohexanediones with the ylide at 190 °C for 20 min in MeCN afforded the exocyclicolefins in >94:6 isomer ratios. On the other hand, the same reactions carried out at 230 °C for 20 min in the presence of 20 mol % DBU furnished the endocyclicolefins in >83:17 isomer ratios. The base-mediated isomerization of the exocyclicolefins into the endocyclic isomers was primarily driven by thermodynamic stability of the
Synthesis of phenothiazines from cyclohexanones and 2-aminobenzenethiols under transition-metal-free conditions
作者:Yunfeng Liao、Pengcheng Jiang、Shanping Chen、Fuhong Xiao、Guo-Jun Deng
DOI:10.1039/c3ra43989e
日期:——
A convenient method for the synthesis of various substituted phenothiazines from cyclohexanones and 2-aminobenzenethiols using molecular oxygen as hydrogen acceptor in the absence of transition-metals is described. For the first time cyclohexanones were used as coupling partners for the construction of phenothiazines.
NOVEL SPIRO IMIDAZOLONES AS GLUCAGON RECEPTOR ANTAGONISTS, COMPOSITIONS, AND METHODS FOR THEIR USE
申请人:Wong Michael K.
公开号:US20130012434A1
公开(公告)日:2013-01-10
The present invention relates to compounds of the general formula: wherein ring A, ring B, R1, R3, Z, L1, and L2 are selected independently of each other and are as defined herein, to compositions comprising the compounds, and to methods of using the compounds as glucagon receptor antagonists and for the treatment or prevention of type 2 diabetes and conditions related thereto.
Mild, efficient Fischer indole synthesis using 2,4,6-trichloro-1,3,5-triazine (TCT)
作者:Eranna Siddalingamurthy、Kittappa M. Mahadevan、Jagadeesh N. Masagalli、Hosanagara N. Harishkumar
DOI:10.1016/j.tetlet.2013.07.157
日期:2013.10
Mild and efficient protocol for the Fischer indole synthesis using TCT has been described. TCT serves as a mild and inexpensive catalyst. Under these conditions several functional groups such as ester, cyano, sulfone, amides, and ethers are tolerated. By this method, many functionalized analytically pure indoles were prepared easily without the need of purification. (C) 2013 Elsevier Ltd. All rights reserved.