Nano-CuFe2O4-supported sulfonic acid as a novel and recyclable nanomagnetic acid for diazotization of aromatic amines: efficient synthesis of various azo dyes
作者:Firouzeh Nemati、Ali Elhampour、Mahshid B. Natanzi、Samaneh Sabaqian
DOI:10.1007/s13738-016-0818-x
日期:2016.6
magnetometer. Then the novel acidic reagent was examined in synthesis of various azo-containing compounds from coupling of aryl diazonium ferrite sulfate salts with aromatic and non-aromatic compounds. The procedure starts by diazotization of aromatic amines with NaNO2 and wet CuFe2O4–SO3H and then coupling reaction of aryl diazonium ferrite sulfate salts with appropriate reagent. The prepared nano-solid
A Convenient Synthesis of 8-Alkyl- and 8-Alkylthio-2-(4-pyridyl)adenines
作者:Balder Singh、George Y. Lesher
DOI:10.1055/s-1991-26422
日期:——
Several 8-alkyl-2-(4-pyridyl)adenine analogs 5 were prepared by reacting 4,5,6-triaminopyrimidine 4 with acid anhydrides, acids or dimethylformamide dimethyl acetal. 8-Mercapto-2-(4-pyridyl)-adenine (6), prepared by treating 4 with O-potassium O-ethyl dithiocarbonate was alkylated to give 8-alkylthioadenine derivatives 7.
Substituted 5-fluoro-1H-pyrazolopyridines and their use
申请人:Follmann Markus
公开号:US20120022084A1
公开(公告)日:2012-01-26
The present application relates to novel substituted 5-fluoro-1H-pyrazolopyridines, to processes for their preparation, to their use alone or in combinations for the treatment and/or prophylaxis of diseases, and to their use for producing medicaments for the treatment and/or prophylaxis of diseases, in particular for the treatment and/or prophylaxis of cardiovascular disorders.
The present invention relates to compounds of the general formula (1) wherein the variables are defined as given in the description and claims. The invention further relates to uses of and to, processes and intermediates related to compounds of the general formula (I), wherein Q is wherein the substituents of I, Ia and Ib are as defined in description and claims.